123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059106010611062106310641065106610671068106910701071107210731074107510761077107810791080108110821083108410851086108710881089109010911092109310941095109610971098109911001101110211031104110511061107110811091110111111121113111411151116111711181119112011211122112311241125112611271128112911301131113211331134113511361137113811391140114111421143114411451146114711481149115011511152115311541155115611571158115911601161116211631164116511661167116811691170117111721173117411751176117711781179118011811182118311841185118611871188118911901191119211931194119511961197119811991200120112021203120412051206120712081209121012111212121312141215121612171218121912201221122212231224122512261227122812291230123112321233123412351236123712381239124012411242124312441245124612471248124912501251125212531254125512561257125812591260126112621263126412651266126712681269127012711272127312741275127612771278127912801281128212831284128512861287128812891290129112921293129412951296129712981299130013011302130313041305130613071308130913101311131213131314131513161317131813191320132113221323132413251326132713281329133013311332133313341335133613371338133913401341134213431344134513461347134813491350135113521353135413551356135713581359136013611362136313641365136613671368136913701371137213731374137513761377137813791380138113821383138413851386138713881389139013911392139313941395139613971398139914001401140214031404140514061407140814091410141114121413141414151416141714181419142014211422142314241425142614271428142914301431143214331434143514361437143814391440144114421443144414451446144714481449145014511452145314541455145614571458145914601461146214631464146514661467146814691470147114721473147414751476147714781479148014811482148314841485148614871488148914901491149214931494149514961497149814991500150115021503150415051506150715081509151015111512151315141515151615171518151915201521152215231524152515261527152815291530153115321533153415351536153715381539154015411542154315441545154615471548154915501551155215531554155515561557155815591560156115621563156415651566156715681569157015711572157315741575157615771578157915801581158215831584158515861587158815891590159115921593159415951596159715981599160016011602160316041605160616071608160916101611161216131614161516161617161816191620162116221623162416251626162716281629163016311632163316341635163616371638163916401641164216431644164516461647164816491650165116521653165416551656165716581659166016611662166316641665166616671668166916701671167216731674167516761677167816791680168116821683168416851686168716881689169016911692169316941695169616971698169917001701170217031704170517061707170817091710171117121713171417151716171717181719172017211722172317241725172617271728172917301731173217331734173517361737173817391740174117421743174417451746174717481749175017511752175317541755175617571758175917601761176217631764176517661767176817691770177117721773177417751776177717781779178017811782178317841785178617871788178917901791179217931794179517961797179817991800180118021803180418051806180718081809181018111812181318141815181618171818181918201821182218231824182518261827182818291830183118321833183418351836183718381839184018411842184318441845184618471848184918501851185218531854185518561857185818591860186118621863186418651866186718681869187018711872187318741875187618771878187918801881188218831884188518861887188818891890189118921893189418951896189718981899190019011902190319041905190619071908190919101911191219131914191519161917191819191920192119221923192419251926192719281929193019311932193319341935193619371938193919401941194219431944194519461947194819491950195119521953195419551956195719581959196019611962196319641965196619671968196919701971197219731974197519761977197819791980198119821983198419851986198719881989199019911992199319941995199619971998199920002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025202620272028202920302031203220332034203520362037203820392040204120422043204420452046204720482049205020512052205320542055205620572058205920602061206220632064206520662067206820692070207120722073207420752076207720782079208020812082208320842085208620872088208920902091209220932094209520962097209820992100210121022103210421052106210721082109211021112112211321142115211621172118211921202121212221232124212521262127212821292130213121322133213421352136213721382139214021412142214321442145214621472148214921502151215221532154215521562157215821592160216121622163216421652166216721682169217021712172217321742175217621772178217921802181218221832184218521862187218821892190219121922193219421952196219721982199220022012202220322042205220622072208220922102211221222132214221522162217221822192220222122222223222422252226222722282229223022312232223322342235223622372238223922402241224222432244224522462247224822492250225122522253225422552256225722582259226022612262226322642265226622672268226922702271227222732274227522762277227822792280228122822283228422852286228722882289229022912292229322942295229622972298229923002301230223032304230523062307230823092310231123122313231423152316231723182319232023212322232323242325232623272328232923302331233223332334233523362337233823392340234123422343234423452346234723482349235023512352235323542355235623572358235923602361236223632364236523662367236823692370237123722373237423752376237723782379238023812382238323842385238623872388238923902391239223932394239523962397239823992400240124022403240424052406240724082409241024112412241324142415241624172418241924202421242224232424242524262427242824292430243124322433243424352436243724382439244024412442244324442445244624472448244924502451245224532454245524562457245824592460246124622463246424652466246724682469247024712472247324742475247624772478247924802481248224832484248524862487248824892490249124922493249424952496249724982499250025012502250325042505250625072508250925102511251225132514251525162517251825192520252125222523252425252526252725282529253025312532253325342535253625372538253925402541254225432544254525462547254825492550255125522553255425552556255725582559256025612562256325642565256625672568256925702571257225732574257525762577257825792580258125822583258425852586258725882589259025912592259325942595259625972598259926002601260226032604260526062607260826092610261126122613261426152616261726182619262026212622262326242625262626272628262926302631263226332634263526362637263826392640264126422643264426452646264726482649265026512652265326542655265626572658265926602661266226632664266526662667266826692670267126722673267426752676267726782679268026812682268326842685268626872688268926902691269226932694269526962697269826992700270127022703270427052706270727082709271027112712271327142715271627172718271927202721272227232724272527262727272827292730273127322733273427352736273727382739274027412742274327442745274627472748274927502751275227532754275527562757275827592760276127622763276427652766276727682769277027712772277327742775277627772778277927802781278227832784278527862787278827892790279127922793279427952796279727982799280028012802280328042805280628072808280928102811281228132814281528162817281828192820282128222823282428252826282728282829283028312832283328342835283628372838283928402841284228432844284528462847284828492850285128522853285428552856 |
- # <pre>
- # This file is in the public domain, so clarified as of
- # 2009-05-17 by Arthur David Olson.
- # This data is by no means authoritative; if you think you know better,
- # go ahead and edit the file (and please send any changes to
- # tz@iana.org for general use in the future).
- # From Paul Eggert (2006-03-22):
- # A good source for time zone historical data outside the U.S. is
- # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
- # San Diego: ACS Publications, Inc. (2003).
- #
- # Gwillim Law writes that a good source
- # for recent time zone data is the International Air Transport
- # Association's Standard Schedules Information Manual (IATA SSIM),
- # published semiannually. Law sent in several helpful summaries
- # of the IATA's data after 1990.
- #
- # Except where otherwise noted, Shanks & Pottenger is the source for
- # entries through 1991, and IATA SSIM is the source for entries afterwards.
- #
- # Other sources occasionally used include:
- #
- # Edward W. Whitman, World Time Differences,
- # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated),
- # which I found in the UCLA library.
- #
- # <a href="http://www.pettswoodvillage.co.uk/Daylight_Savings_William_Willett.pdf">
- # William Willett, The Waste of Daylight, 19th edition
- # </a> (1914-03)
- #
- # Brazil's Departamento Servico da Hora (DSH),
- # <a href="http://pcdsh01.on.br/HISTHV.htm">
- # History of Summer Time
- # </a> (1998-09-21, in Portuguese)
- #
- # I invented the abbreviations marked `*' in the following table;
- # the rest are from earlier versions of this file, or from other sources.
- # Corrections are welcome!
- # std dst 2dst
- # LMT Local Mean Time
- # -4:00 AST ADT Atlantic
- # -3:00 WGT WGST Western Greenland*
- # -1:00 EGT EGST Eastern Greenland*
- # 0:00 GMT BST BDST Greenwich, British Summer
- # 0:00 GMT IST Greenwich, Irish Summer
- # 0:00 WET WEST WEMT Western Europe
- # 0:19:32.13 AMT NST Amsterdam, Netherlands Summer (1835-1937)*
- # 0:20 NET NEST Netherlands (1937-1940)*
- # 1:00 CET CEST CEMT Central Europe
- # 1:00:14 SET Swedish (1879-1899)*
- # 2:00 EET EEST Eastern Europe
- # 3:00 MSK MSD Moscow
- #
- # A reliable and entertaining source about time zones, especially in Britain,
- # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
- # From Peter Ilieve (1994-12-04),
- # The original six [EU members]: Belgium, France, (West) Germany, Italy,
- # Luxembourg, the Netherlands.
- # Plus, from 1 Jan 73: Denmark, Ireland, United Kingdom.
- # Plus, from 1 Jan 81: Greece.
- # Plus, from 1 Jan 86: Spain, Portugal.
- # Plus, from 1 Jan 95: Austria, Finland, Sweden. (Norway negotiated terms for
- # entry but in a referendum on 28 Nov 94 the people voted No by 52.2% to 47.8%
- # on a turnout of 88.6%. This was almost the same result as Norway's previous
- # referendum in 1972, they are the only country to have said No twice.
- # Referendums in the other three countries voted Yes.)
- # ...
- # Estonia ... uses EU dates but not at 01:00 GMT, they use midnight GMT.
- # I don't think they know yet what they will do from 1996 onwards.
- # ...
- # There shouldn't be any [current members who are not using EU rules].
- # A Directive has the force of law, member states are obliged to enact
- # national law to implement it. The only contentious issue was the
- # different end date for the UK and Ireland, and this was always allowed
- # in the Directive.
- ###############################################################################
- # Britain (United Kingdom) and Ireland (Eire)
- # From Peter Ilieve (1994-07-06):
- #
- # On 17 Jan 1994 the Independent, a UK quality newspaper, had a piece about
- # historical vistas along the Thames in west London. There was a photo
- # and a sketch map showing some of the sightlines involved. One paragraph
- # of the text said:
- #
- # `An old stone obelisk marking a forgotten terrestrial meridian stands
- # beside the river at Kew. In the 18th century, before time and longitude
- # was standardised by the Royal Observatory in Greenwich, scholars observed
- # this stone and the movement of stars from Kew Observatory nearby. They
- # made their calculations and set the time for the Horse Guards and Parliament,
- # but now the stone is obscured by scrubwood and can only be seen by walking
- # along the towpath within a few yards of it.'
- #
- # I have a one inch to one mile map of London and my estimate of the stone's
- # position is 51 deg. 28' 30" N, 0 deg. 18' 45" W. The longitude should
- # be within about +-2". The Ordnance Survey grid reference is TQ172761.
- #
- # [This yields GMTOFF = -0:01:15 for London LMT in the 18th century.]
- # From Paul Eggert (1993-11-18):
- #
- # Howse writes that Britain was the first country to use standard time.
- # The railways cared most about the inconsistencies of local mean time,
- # and it was they who forced a uniform time on the country.
- # The original idea was credited to Dr. William Hyde Wollaston (1766-1828)
- # and was popularized by Abraham Follett Osler (1808-1903).
- # The first railway to adopt London time was the Great Western Railway
- # in November 1840; other railways followed suit, and by 1847 most
- # (though not all) railways used London time. On 1847-09-22 the
- # Railway Clearing House, an industry standards body, recommended that GMT be
- # adopted at all stations as soon as the General Post Office permitted it.
- # The transition occurred on 12-01 for the L&NW, the Caledonian,
- # and presumably other railways; the January 1848 Bradshaw's lists many
- # railways as using GMT. By 1855 the vast majority of public
- # clocks in Britain were set to GMT (though some, like the great clock
- # on Tom Tower at Christ Church, Oxford, were fitted with two minute hands,
- # one for local time and one for GMT). The last major holdout was the legal
- # system, which stubbornly stuck to local time for many years, leading
- # to oddities like polls opening at 08:13 and closing at 16:13.
- # The legal system finally switched to GMT when the Statutes (Definition
- # of Time) Act took effect; it received the Royal Assent on 1880-08-02.
- #
- # In the tables below, we condense this complicated story into a single
- # transition date for London, namely 1847-12-01. We don't know as much
- # about Dublin, so we use 1880-08-02, the legal transition time.
- # From Paul Eggert (2003-09-27):
- # Summer Time was first seriously proposed by William Willett (1857-1915),
- # a London builder and member of the Royal Astronomical Society
- # who circulated a pamphlet ``The Waste of Daylight'' (1907)
- # that proposed advancing clocks 20 minutes on each of four Sundays in April,
- # and retarding them by the same amount on four Sundays in September.
- # A bill was drafted in 1909 and introduced in Parliament several times,
- # but it met with ridicule and opposition, especially from farming interests.
- # Later editions of the pamphlet proposed one-hour summer time, and
- # it was eventually adopted as a wartime measure in 1916.
- # See: Summer Time Arrives Early, The Times (2000-05-18).
- # A monument to Willett was unveiled on 1927-05-21, in an open space in
- # a 45-acre wood near Chislehurst, Kent that was purchased by popular
- # subscription and open to the public. On the south face of the monolith,
- # designed by G. W. Miller, is the...William Willett Memorial Sundial,
- # which is permanently set to Summer Time.
- # From Winston Churchill (1934-04-28):
- # It is one of the paradoxes of history that we should owe the boon of
- # summer time, which gives every year to the people of this country
- # between 160 and 170 hours more daylight leisure, to a war which
- # plunged Europe into darkness for four years, and shook the
- # foundations of civilization throughout the world.
- # -- <a href="http://www.winstonchurchill.org/fh114willett.htm">
- # "A Silent Toast to William Willett", Pictorial Weekly
- # </a>
- # From Paul Eggert (1996-09-03):
- # The OED Supplement says that the English originally said ``Daylight Saving''
- # when they were debating the adoption of DST in 1908; but by 1916 this
- # term appears only in quotes taken from DST's opponents, whereas the
- # proponents (who eventually won the argument) are quoted as using ``Summer''.
- # From Arthur David Olson (1989-01-19):
- #
- # A source at the British Information Office in New York avers that it's
- # known as "British" Summer Time in all parts of the United Kingdom.
- # Date: 4 Jan 89 08:57:25 GMT (Wed)
- # From: Jonathan Leffler
- # [British Summer Time] is fixed annually by Act of Parliament.
- # If you can predict what Parliament will do, you should be in
- # politics making a fortune, not computing.
- # From Chris Carrier (1996-06-14):
- # I remember reading in various wartime issues of the London Times the
- # acronym BDST for British Double Summer Time. Look for the published
- # time of sunrise and sunset in The Times, when BDST was in effect, and
- # if you find a zone reference it will say, "All times B.D.S.T."
- # From Joseph S. Myers (1999-09-02):
- # ... some military cables (WO 219/4100 - this is a copy from the
- # main SHAEF archives held in the US National Archives, SHAEF/5252/8/516)
- # agree that the usage is BDST (this appears in a message dated 17 Feb 1945).
- # From Joseph S. Myers (2000-10-03):
- # On 18th April 1941, Sir Stephen Tallents of the BBC wrote to Sir
- # Alexander Maxwell of the Home Office asking whether there was any
- # official designation; the reply of the 21st was that there wasn't
- # but he couldn't think of anything better than the "Double British
- # Summer Time" that the BBC had been using informally.
- # http://student.cusu.cam.ac.uk/~jsm28/british-time/bbc-19410418.png
- # http://student.cusu.cam.ac.uk/~jsm28/british-time/ho-19410421.png
- # From Sir Alexander Maxwell in the above-mentioned letter (1941-04-21):
- # [N]o official designation has as far as I know been adopted for the time
- # which is to be introduced in May....
- # I cannot think of anything better than "Double British Summer Time"
- # which could not be said to run counter to any official description.
- # From Paul Eggert (2000-10-02):
- # Howse writes (p 157) `DBST' too, but `BDST' seems to have been common
- # and follows the more usual convention of putting the location name first,
- # so we use `BDST'.
- # Peter Ilieve (1998-04-19) described at length
- # the history of summer time legislation in the United Kingdom.
- # Since 1998 Joseph S. Myers has been updating
- # and extending this list, which can be found in
- # http://student.cusu.cam.ac.uk/~jsm28/british-time/
- # <a href="http://www.polyomino.org.uk/british-time/">
- # History of legal time in Britain
- # </a>
- # Rob Crowther (2012-01-04) reports that that URL no longer
- # exists, and the article can now be found at:
- # <a href="http://www.polyomino.org.uk/british-time/">
- # http://www.polyomino.org.uk/british-time/
- # </a>
- # From Joseph S. Myers (1998-01-06):
- #
- # The legal time in the UK outside of summer time is definitely GMT, not UTC;
- # see Lord Tanlaw's speech
- # <a href="http://www.parliament.the-stationery-office.co.uk/pa/ld199697/ldhansrd/pdvn/lds97/text/70611-20.htm#70611-20_head0">
- # (Lords Hansard 11 June 1997 columns 964 to 976)
- # </a>.
- # From Paul Eggert (2006-03-22):
- #
- # For lack of other data, follow Shanks & Pottenger for Eire in 1940-1948.
- #
- # Given Ilieve and Myers's data, the following claims by Shanks & Pottenger
- # are incorrect:
- # * Wales did not switch from GMT to daylight saving time until
- # 1921 Apr 3, when they began to conform with the rest of Great Britain.
- # Actually, Wales was identical after 1880.
- # * Eire had two transitions on 1916 Oct 1.
- # It actually just had one transition.
- # * Northern Ireland used single daylight saving time throughout WW II.
- # Actually, it conformed to Britain.
- # * GB-Eire changed standard time to 1 hour ahead of GMT on 1968-02-18.
- # Actually, that date saw the usual switch to summer time.
- # Standard time was not changed until 1968-10-27 (the clocks didn't change).
- #
- # Here is another incorrect claim by Shanks & Pottenger:
- # * Jersey, Guernsey, and the Isle of Man did not switch from GMT
- # to daylight saving time until 1921 Apr 3, when they began to
- # conform with Great Britain.
- # S.R.&O. 1916, No. 382 and HO 45/10811/312364 (quoted above) say otherwise.
- #
- # The following claim by Shanks & Pottenger is possible though doubtful;
- # we'll ignore it for now.
- # * Dublin's 1971-10-31 switch was at 02:00, even though London's was 03:00.
- #
- #
- # Whitman says Dublin Mean Time was -0:25:21, which is more precise than
- # Shanks & Pottenger.
- # Perhaps this was Dunsink Observatory Time, as Dunsink Observatory
- # (8 km NW of Dublin's center) seemingly was to Dublin as Greenwich was
- # to London. For example:
- #
- # "Timeball on the ballast office is down. Dunsink time."
- # -- James Joyce, Ulysses
- # From Joseph S. Myers (2005-01-26):
- # Irish laws are available online at www.irishstatutebook.ie. These include
- # various relating to legal time, for example:
- #
- # ZZA13Y1923.html ZZA12Y1924.html ZZA8Y1925.html ZZSIV20PG1267.html
- #
- # ZZSI71Y1947.html ZZSI128Y1948.html ZZSI23Y1949.html ZZSI41Y1950.html
- # ZZSI27Y1951.html ZZSI73Y1952.html
- #
- # ZZSI11Y1961.html ZZSI232Y1961.html ZZSI182Y1962.html
- # ZZSI167Y1963.html ZZSI257Y1964.html ZZSI198Y1967.html
- # ZZA23Y1968.html ZZA17Y1971.html
- #
- # ZZSI67Y1981.html ZZSI212Y1982.html ZZSI45Y1986.html
- # ZZSI264Y1988.html ZZSI52Y1990.html ZZSI371Y1992.html
- # ZZSI395Y1994.html ZZSI484Y1997.html ZZSI506Y2001.html
- #
- # [These are all relative to the root, e.g., the first is
- # <http://www.irishstatutebook.ie/ZZA13Y1923.html>.]
- #
- # (These are those I found, but there could be more. In any case these
- # should allow various updates to the comments in the europe file to cover
- # the laws applicable in Ireland.)
- #
- # (Note that the time in the Republic of Ireland since 1968 has been defined
- # in terms of standard time being GMT+1 with a period of winter time when it
- # is GMT, rather than standard time being GMT with a period of summer time
- # being GMT+1.)
- # From Paul Eggert (1999-03-28):
- # Clive Feather (<news:859845706.26043.0@office.demon.net>, 1997-03-31)
- # reports that Folkestone (Cheriton) Shuttle Terminal uses Concession Time
- # (CT), equivalent to French civil time.
- # Julian Hill (<news:36118128.5A14@virgin.net>, 1998-09-30) reports that
- # trains between Dollands Moor (the freight facility next door)
- # and Frethun run in CT.
- # My admittedly uninformed guess is that the terminal has two authorities,
- # the French concession operators and the British civil authorities,
- # and that the time depends on who you're talking to.
- # If, say, the British police were called to the station for some reason,
- # I would expect the official police report to use GMT/BST and not CET/CEST.
- # This is a borderline case, but for now let's stick to GMT/BST.
- # From an anonymous contributor (1996-06-02):
- # The law governing time in Ireland is under Statutory Instrument SI 395/94,
- # which gives force to European Union 7th Council Directive # 94/21/EC.
- # Under this directive, the Minister for Justice in Ireland makes appropriate
- # regulations. I spoke this morning with the Secretary of the Department of
- # Justice (tel +353 1 678 9711) who confirmed to me that the correct name is
- # "Irish Summer Time", abbreviated to "IST".
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- # Summer Time Act, 1916
- Rule GB-Eire 1916 only - May 21 2:00s 1:00 BST
- Rule GB-Eire 1916 only - Oct 1 2:00s 0 GMT
- # S.R.&O. 1917, No. 358
- Rule GB-Eire 1917 only - Apr 8 2:00s 1:00 BST
- Rule GB-Eire 1917 only - Sep 17 2:00s 0 GMT
- # S.R.&O. 1918, No. 274
- Rule GB-Eire 1918 only - Mar 24 2:00s 1:00 BST
- Rule GB-Eire 1918 only - Sep 30 2:00s 0 GMT
- # S.R.&O. 1919, No. 297
- Rule GB-Eire 1919 only - Mar 30 2:00s 1:00 BST
- Rule GB-Eire 1919 only - Sep 29 2:00s 0 GMT
- # S.R.&O. 1920, No. 458
- Rule GB-Eire 1920 only - Mar 28 2:00s 1:00 BST
- # S.R.&O. 1920, No. 1844
- Rule GB-Eire 1920 only - Oct 25 2:00s 0 GMT
- # S.R.&O. 1921, No. 363
- Rule GB-Eire 1921 only - Apr 3 2:00s 1:00 BST
- Rule GB-Eire 1921 only - Oct 3 2:00s 0 GMT
- # S.R.&O. 1922, No. 264
- Rule GB-Eire 1922 only - Mar 26 2:00s 1:00 BST
- Rule GB-Eire 1922 only - Oct 8 2:00s 0 GMT
- # The Summer Time Act, 1922
- Rule GB-Eire 1923 only - Apr Sun>=16 2:00s 1:00 BST
- Rule GB-Eire 1923 1924 - Sep Sun>=16 2:00s 0 GMT
- Rule GB-Eire 1924 only - Apr Sun>=9 2:00s 1:00 BST
- Rule GB-Eire 1925 1926 - Apr Sun>=16 2:00s 1:00 BST
- # The Summer Time Act, 1925
- Rule GB-Eire 1925 1938 - Oct Sun>=2 2:00s 0 GMT
- Rule GB-Eire 1927 only - Apr Sun>=9 2:00s 1:00 BST
- Rule GB-Eire 1928 1929 - Apr Sun>=16 2:00s 1:00 BST
- Rule GB-Eire 1930 only - Apr Sun>=9 2:00s 1:00 BST
- Rule GB-Eire 1931 1932 - Apr Sun>=16 2:00s 1:00 BST
- Rule GB-Eire 1933 only - Apr Sun>=9 2:00s 1:00 BST
- Rule GB-Eire 1934 only - Apr Sun>=16 2:00s 1:00 BST
- Rule GB-Eire 1935 only - Apr Sun>=9 2:00s 1:00 BST
- Rule GB-Eire 1936 1937 - Apr Sun>=16 2:00s 1:00 BST
- Rule GB-Eire 1938 only - Apr Sun>=9 2:00s 1:00 BST
- Rule GB-Eire 1939 only - Apr Sun>=16 2:00s 1:00 BST
- # S.R.&O. 1939, No. 1379
- Rule GB-Eire 1939 only - Nov Sun>=16 2:00s 0 GMT
- # S.R.&O. 1940, No. 172 and No. 1883
- Rule GB-Eire 1940 only - Feb Sun>=23 2:00s 1:00 BST
- # S.R.&O. 1941, No. 476
- Rule GB-Eire 1941 only - May Sun>=2 1:00s 2:00 BDST
- Rule GB-Eire 1941 1943 - Aug Sun>=9 1:00s 1:00 BST
- # S.R.&O. 1942, No. 506
- Rule GB-Eire 1942 1944 - Apr Sun>=2 1:00s 2:00 BDST
- # S.R.&O. 1944, No. 932
- Rule GB-Eire 1944 only - Sep Sun>=16 1:00s 1:00 BST
- # S.R.&O. 1945, No. 312
- Rule GB-Eire 1945 only - Apr Mon>=2 1:00s 2:00 BDST
- Rule GB-Eire 1945 only - Jul Sun>=9 1:00s 1:00 BST
- # S.R.&O. 1945, No. 1208
- Rule GB-Eire 1945 1946 - Oct Sun>=2 2:00s 0 GMT
- Rule GB-Eire 1946 only - Apr Sun>=9 2:00s 1:00 BST
- # The Summer Time Act, 1947
- Rule GB-Eire 1947 only - Mar 16 2:00s 1:00 BST
- Rule GB-Eire 1947 only - Apr 13 1:00s 2:00 BDST
- Rule GB-Eire 1947 only - Aug 10 1:00s 1:00 BST
- Rule GB-Eire 1947 only - Nov 2 2:00s 0 GMT
- # Summer Time Order, 1948 (S.I. 1948/495)
- Rule GB-Eire 1948 only - Mar 14 2:00s 1:00 BST
- Rule GB-Eire 1948 only - Oct 31 2:00s 0 GMT
- # Summer Time Order, 1949 (S.I. 1949/373)
- Rule GB-Eire 1949 only - Apr 3 2:00s 1:00 BST
- Rule GB-Eire 1949 only - Oct 30 2:00s 0 GMT
- # Summer Time Order, 1950 (S.I. 1950/518)
- # Summer Time Order, 1951 (S.I. 1951/430)
- # Summer Time Order, 1952 (S.I. 1952/451)
- Rule GB-Eire 1950 1952 - Apr Sun>=14 2:00s 1:00 BST
- Rule GB-Eire 1950 1952 - Oct Sun>=21 2:00s 0 GMT
- # revert to the rules of the Summer Time Act, 1925
- Rule GB-Eire 1953 only - Apr Sun>=16 2:00s 1:00 BST
- Rule GB-Eire 1953 1960 - Oct Sun>=2 2:00s 0 GMT
- Rule GB-Eire 1954 only - Apr Sun>=9 2:00s 1:00 BST
- Rule GB-Eire 1955 1956 - Apr Sun>=16 2:00s 1:00 BST
- Rule GB-Eire 1957 only - Apr Sun>=9 2:00s 1:00 BST
- Rule GB-Eire 1958 1959 - Apr Sun>=16 2:00s 1:00 BST
- Rule GB-Eire 1960 only - Apr Sun>=9 2:00s 1:00 BST
- # Summer Time Order, 1961 (S.I. 1961/71)
- # Summer Time (1962) Order, 1961 (S.I. 1961/2465)
- # Summer Time Order, 1963 (S.I. 1963/81)
- Rule GB-Eire 1961 1963 - Mar lastSun 2:00s 1:00 BST
- Rule GB-Eire 1961 1968 - Oct Sun>=23 2:00s 0 GMT
- # Summer Time (1964) Order, 1963 (S.I. 1963/2101)
- # Summer Time Order, 1964 (S.I. 1964/1201)
- # Summer Time Order, 1967 (S.I. 1967/1148)
- Rule GB-Eire 1964 1967 - Mar Sun>=19 2:00s 1:00 BST
- # Summer Time Order, 1968 (S.I. 1968/117)
- Rule GB-Eire 1968 only - Feb 18 2:00s 1:00 BST
- # The British Standard Time Act, 1968
- # (no summer time)
- # The Summer Time Act, 1972
- Rule GB-Eire 1972 1980 - Mar Sun>=16 2:00s 1:00 BST
- Rule GB-Eire 1972 1980 - Oct Sun>=23 2:00s 0 GMT
- # Summer Time Order, 1980 (S.I. 1980/1089)
- # Summer Time Order, 1982 (S.I. 1982/1673)
- # Summer Time Order, 1986 (S.I. 1986/223)
- # Summer Time Order, 1988 (S.I. 1988/931)
- Rule GB-Eire 1981 1995 - Mar lastSun 1:00u 1:00 BST
- Rule GB-Eire 1981 1989 - Oct Sun>=23 1:00u 0 GMT
- # Summer Time Order, 1989 (S.I. 1989/985)
- # Summer Time Order, 1992 (S.I. 1992/1729)
- # Summer Time Order 1994 (S.I. 1994/2798)
- Rule GB-Eire 1990 1995 - Oct Sun>=22 1:00u 0 GMT
- # Summer Time Order 1997 (S.I. 1997/2982)
- # See EU for rules starting in 1996.
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/London -0:01:15 - LMT 1847 Dec 1 0:00s
- 0:00 GB-Eire %s 1968 Oct 27
- 1:00 - BST 1971 Oct 31 2:00u
- 0:00 GB-Eire %s 1996
- 0:00 EU GMT/BST
- Link Europe/London Europe/Jersey
- Link Europe/London Europe/Guernsey
- Link Europe/London Europe/Isle_of_Man
- Zone Europe/Dublin -0:25:00 - LMT 1880 Aug 2
- -0:25:21 - DMT 1916 May 21 2:00
- -0:25:21 1:00 IST 1916 Oct 1 2:00s
- 0:00 GB-Eire %s 1921 Dec 6 # independence
- 0:00 GB-Eire GMT/IST 1940 Feb 25 2:00
- 0:00 1:00 IST 1946 Oct 6 2:00
- 0:00 - GMT 1947 Mar 16 2:00
- 0:00 1:00 IST 1947 Nov 2 2:00
- 0:00 - GMT 1948 Apr 18 2:00
- 0:00 GB-Eire GMT/IST 1968 Oct 27
- 1:00 - IST 1971 Oct 31 2:00u
- 0:00 GB-Eire GMT/IST 1996
- 0:00 EU GMT/IST
- ###############################################################################
- # Europe
- # EU rules are for the European Union, previously known as the EC, EEC,
- # Common Market, etc.
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule EU 1977 1980 - Apr Sun>=1 1:00u 1:00 S
- Rule EU 1977 only - Sep lastSun 1:00u 0 -
- Rule EU 1978 only - Oct 1 1:00u 0 -
- Rule EU 1979 1995 - Sep lastSun 1:00u 0 -
- Rule EU 1981 max - Mar lastSun 1:00u 1:00 S
- Rule EU 1996 max - Oct lastSun 1:00u 0 -
- # The most recent directive covers the years starting in 2002. See:
- # <a="http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32000L0084:EN:NOT">
- # Directive 2000/84/EC of the European Parliament and of the Council
- # of 19 January 2001 on summer-time arrangements.
- # </a>
- # W-Eur differs from EU only in that W-Eur uses standard time.
- Rule W-Eur 1977 1980 - Apr Sun>=1 1:00s 1:00 S
- Rule W-Eur 1977 only - Sep lastSun 1:00s 0 -
- Rule W-Eur 1978 only - Oct 1 1:00s 0 -
- Rule W-Eur 1979 1995 - Sep lastSun 1:00s 0 -
- Rule W-Eur 1981 max - Mar lastSun 1:00s 1:00 S
- Rule W-Eur 1996 max - Oct lastSun 1:00s 0 -
- # Older C-Eur rules are for convenience in the tables.
- # From 1977 on, C-Eur differs from EU only in that C-Eur uses standard time.
- Rule C-Eur 1916 only - Apr 30 23:00 1:00 S
- Rule C-Eur 1916 only - Oct 1 1:00 0 -
- Rule C-Eur 1917 1918 - Apr Mon>=15 2:00s 1:00 S
- Rule C-Eur 1917 1918 - Sep Mon>=15 2:00s 0 -
- Rule C-Eur 1940 only - Apr 1 2:00s 1:00 S
- Rule C-Eur 1942 only - Nov 2 2:00s 0 -
- Rule C-Eur 1943 only - Mar 29 2:00s 1:00 S
- Rule C-Eur 1943 only - Oct 4 2:00s 0 -
- Rule C-Eur 1944 1945 - Apr Mon>=1 2:00s 1:00 S
- # Whitman gives 1944 Oct 7; go with Shanks & Pottenger.
- Rule C-Eur 1944 only - Oct 2 2:00s 0 -
- # From Jesper Norgaard Welen (2008-07-13):
- #
- # I found what is probably a typo of 2:00 which should perhaps be 2:00s
- # in the C-Eur rule from tz database version 2008d (this part was
- # corrected in version 2008d). The circumstancial evidence is simply the
- # tz database itself, as seen below:
- #
- # Zone Europe/Paris 0:09:21 - LMT 1891 Mar 15 0:01
- # 0:00 France WE%sT 1945 Sep 16 3:00
- #
- # Zone Europe/Monaco 0:29:32 - LMT 1891 Mar 15
- # 0:00 France WE%sT 1945 Sep 16 3:00
- #
- # Zone Europe/Belgrade 1:22:00 - LMT 1884
- # 1:00 1:00 CEST 1945 Sep 16 2:00s
- #
- # Rule France 1945 only - Sep 16 3:00 0 -
- # Rule Belgium 1945 only - Sep 16 2:00s 0 -
- # Rule Neth 1945 only - Sep 16 2:00s 0 -
- #
- # The rule line to be changed is:
- #
- # Rule C-Eur 1945 only - Sep 16 2:00 0 -
- #
- # It seems that Paris, Monaco, Rule France, Rule Belgium all agree on
- # 2:00 standard time, e.g. 3:00 local time. However there are no
- # countries that use C-Eur rules in September 1945, so the only items
- # affected are apparently these ficticious zones that translates acronyms
- # CET and MET:
- #
- # Zone CET 1:00 C-Eur CE%sT
- # Zone MET 1:00 C-Eur ME%sT
- #
- # It this is right then the corrected version would look like:
- #
- # Rule C-Eur 1945 only - Sep 16 2:00s 0 -
- #
- # A small step for mankind though 8-)
- Rule C-Eur 1945 only - Sep 16 2:00s 0 -
- Rule C-Eur 1977 1980 - Apr Sun>=1 2:00s 1:00 S
- Rule C-Eur 1977 only - Sep lastSun 2:00s 0 -
- Rule C-Eur 1978 only - Oct 1 2:00s 0 -
- Rule C-Eur 1979 1995 - Sep lastSun 2:00s 0 -
- Rule C-Eur 1981 max - Mar lastSun 2:00s 1:00 S
- Rule C-Eur 1996 max - Oct lastSun 2:00s 0 -
- # E-Eur differs from EU only in that E-Eur switches at midnight local time.
- Rule E-Eur 1977 1980 - Apr Sun>=1 0:00 1:00 S
- Rule E-Eur 1977 only - Sep lastSun 0:00 0 -
- Rule E-Eur 1978 only - Oct 1 0:00 0 -
- Rule E-Eur 1979 1995 - Sep lastSun 0:00 0 -
- Rule E-Eur 1981 max - Mar lastSun 0:00 1:00 S
- Rule E-Eur 1996 max - Oct lastSun 0:00 0 -
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Russia 1917 only - Jul 1 23:00 1:00 MST # Moscow Summer Time
- Rule Russia 1917 only - Dec 28 0:00 0 MMT # Moscow Mean Time
- Rule Russia 1918 only - May 31 22:00 2:00 MDST # Moscow Double Summer Time
- Rule Russia 1918 only - Sep 16 1:00 1:00 MST
- Rule Russia 1919 only - May 31 23:00 2:00 MDST
- Rule Russia 1919 only - Jul 1 2:00 1:00 S
- Rule Russia 1919 only - Aug 16 0:00 0 -
- Rule Russia 1921 only - Feb 14 23:00 1:00 S
- Rule Russia 1921 only - Mar 20 23:00 2:00 M # Midsummer
- Rule Russia 1921 only - Sep 1 0:00 1:00 S
- Rule Russia 1921 only - Oct 1 0:00 0 -
- # Act No.925 of the Council of Ministers of the USSR (1980-10-24):
- Rule Russia 1981 1984 - Apr 1 0:00 1:00 S
- Rule Russia 1981 1983 - Oct 1 0:00 0 -
- # Act No.967 of the Council of Ministers of the USSR (1984-09-13), repeated in
- # Act No.227 of the Council of Ministers of the USSR (1989-03-14):
- Rule Russia 1984 1991 - Sep lastSun 2:00s 0 -
- Rule Russia 1985 1991 - Mar lastSun 2:00s 1:00 S
- #
- Rule Russia 1992 only - Mar lastSat 23:00 1:00 S
- Rule Russia 1992 only - Sep lastSat 23:00 0 -
- Rule Russia 1993 2010 - Mar lastSun 2:00s 1:00 S
- Rule Russia 1993 1995 - Sep lastSun 2:00s 0 -
- Rule Russia 1996 2010 - Oct lastSun 2:00s 0 -
- # From Alexander Krivenyshev (2011-06-14):
- # According to Kremlin press service, Russian President Dmitry Medvedev
- # signed a federal law "On calculation of time" on June 9, 2011.
- # According to the law Russia is abolishing daylight saving time.
- #
- # Medvedev signed a law "On the Calculation of Time" (in russian):
- # <a href="http://bmockbe.ru/events/?ID=7583">
- # http://bmockbe.ru/events/?ID=7583
- # </a>
- #
- # Medvedev signed a law on the calculation of the time (in russian):
- # <a href="http://www.regnum.ru/news/polit/1413906.html">
- # http://www.regnum.ru/news/polit/1413906.html
- # </a>
- # From Arthur David Olson (2011-06-15):
- # Take "abolishing daylight saving time" to mean that time is now considered
- # to be standard.
- # These are for backward compatibility with older versions.
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone WET 0:00 EU WE%sT
- Zone CET 1:00 C-Eur CE%sT
- Zone MET 1:00 C-Eur ME%sT
- Zone EET 2:00 EU EE%sT
- # Previous editions of this database used abbreviations like MET DST
- # for Central European Summer Time, but this didn't agree with common usage.
- # From Markus Kuhn (1996-07-12):
- # The official German names ... are
- #
- # Mitteleuropaeische Zeit (MEZ) = UTC+01:00
- # Mitteleuropaeische Sommerzeit (MESZ) = UTC+02:00
- #
- # as defined in the German Time Act (Gesetz ueber die Zeitbestimmung (ZeitG),
- # 1978-07-25, Bundesgesetzblatt, Jahrgang 1978, Teil I, S. 1110-1111)....
- # I wrote ... to the German Federal Physical-Technical Institution
- #
- # Physikalisch-Technische Bundesanstalt (PTB)
- # Laboratorium 4.41 "Zeiteinheit"
- # Postfach 3345
- # D-38023 Braunschweig
- # phone: +49 531 592-0
- #
- # ... I received today an answer letter from Dr. Peter Hetzel, head of the PTB
- # department for time and frequency transmission. He explained that the
- # PTB translates MEZ and MESZ into English as
- #
- # Central European Time (CET) = UTC+01:00
- # Central European Summer Time (CEST) = UTC+02:00
- # Albania
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Albania 1940 only - Jun 16 0:00 1:00 S
- Rule Albania 1942 only - Nov 2 3:00 0 -
- Rule Albania 1943 only - Mar 29 2:00 1:00 S
- Rule Albania 1943 only - Apr 10 3:00 0 -
- Rule Albania 1974 only - May 4 0:00 1:00 S
- Rule Albania 1974 only - Oct 2 0:00 0 -
- Rule Albania 1975 only - May 1 0:00 1:00 S
- Rule Albania 1975 only - Oct 2 0:00 0 -
- Rule Albania 1976 only - May 2 0:00 1:00 S
- Rule Albania 1976 only - Oct 3 0:00 0 -
- Rule Albania 1977 only - May 8 0:00 1:00 S
- Rule Albania 1977 only - Oct 2 0:00 0 -
- Rule Albania 1978 only - May 6 0:00 1:00 S
- Rule Albania 1978 only - Oct 1 0:00 0 -
- Rule Albania 1979 only - May 5 0:00 1:00 S
- Rule Albania 1979 only - Sep 30 0:00 0 -
- Rule Albania 1980 only - May 3 0:00 1:00 S
- Rule Albania 1980 only - Oct 4 0:00 0 -
- Rule Albania 1981 only - Apr 26 0:00 1:00 S
- Rule Albania 1981 only - Sep 27 0:00 0 -
- Rule Albania 1982 only - May 2 0:00 1:00 S
- Rule Albania 1982 only - Oct 3 0:00 0 -
- Rule Albania 1983 only - Apr 18 0:00 1:00 S
- Rule Albania 1983 only - Oct 1 0:00 0 -
- Rule Albania 1984 only - Apr 1 0:00 1:00 S
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Tirane 1:19:20 - LMT 1914
- 1:00 - CET 1940 Jun 16
- 1:00 Albania CE%sT 1984 Jul
- 1:00 EU CE%sT
- # Andorra
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Andorra 0:06:04 - LMT 1901
- 0:00 - WET 1946 Sep 30
- 1:00 - CET 1985 Mar 31 2:00
- 1:00 EU CE%sT
- # Austria
- # From Paul Eggert (2006-03-22): Shanks & Pottenger give 1918-06-16 and
- # 1945-11-18, but the Austrian Federal Office of Metrology and
- # Surveying (BEV) gives 1918-09-16 and for Vienna gives the "alleged"
- # date of 1945-04-12 with no time. For the 1980-04-06 transition
- # Shanks & Pottenger give 02:00, the BEV 00:00. Go with the BEV,
- # and guess 02:00 for 1945-04-12.
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Austria 1920 only - Apr 5 2:00s 1:00 S
- Rule Austria 1920 only - Sep 13 2:00s 0 -
- Rule Austria 1946 only - Apr 14 2:00s 1:00 S
- Rule Austria 1946 1948 - Oct Sun>=1 2:00s 0 -
- Rule Austria 1947 only - Apr 6 2:00s 1:00 S
- Rule Austria 1948 only - Apr 18 2:00s 1:00 S
- Rule Austria 1980 only - Apr 6 0:00 1:00 S
- Rule Austria 1980 only - Sep 28 0:00 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Vienna 1:05:20 - LMT 1893 Apr
- 1:00 C-Eur CE%sT 1920
- 1:00 Austria CE%sT 1940 Apr 1 2:00s
- 1:00 C-Eur CE%sT 1945 Apr 2 2:00s
- 1:00 1:00 CEST 1945 Apr 12 2:00s
- 1:00 - CET 1946
- 1:00 Austria CE%sT 1981
- 1:00 EU CE%sT
- # Belarus
- # From Yauhen Kharuzhy (2011-09-16):
- # By latest Belarus government act Europe/Minsk timezone was changed to
- # GMT+3 without DST (was GMT+2 with DST).
- #
- # Sources (Russian language):
- # 1.
- # <a href="http://www.belta.by/ru/all_news/society/V-Belarusi-otmenjaetsja-perexod-na-sezonnoe-vremja_i_572952.html">
- # http://www.belta.by/ru/all_news/society/V-Belarusi-otmenjaetsja-perexod-na-sezonnoe-vremja_i_572952.html
- # </a>
- # 2.
- # <a href="http://naviny.by/rubrics/society/2011/09/16/ic_articles_116_175144/">
- # http://naviny.by/rubrics/society/2011/09/16/ic_articles_116_175144/
- # </a>
- # 3.
- # <a href="http://news.tut.by/society/250578.html">
- # http://news.tut.by/society/250578.html
- # </a>
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Minsk 1:50:16 - LMT 1880
- 1:50 - MMT 1924 May 2 # Minsk Mean Time
- 2:00 - EET 1930 Jun 21
- 3:00 - MSK 1941 Jun 28
- 1:00 C-Eur CE%sT 1944 Jul 3
- 3:00 Russia MSK/MSD 1990
- 3:00 - MSK 1991 Mar 31 2:00s
- 2:00 1:00 EEST 1991 Sep 29 2:00s
- 2:00 - EET 1992 Mar 29 0:00s
- 2:00 1:00 EEST 1992 Sep 27 0:00s
- 2:00 Russia EE%sT 2011 Mar 27 2:00s
- 3:00 - FET # Further-eastern European Time
- # Belgium
- #
- # From Paul Eggert (1997-07-02):
- # Entries from 1918 through 1991 are taken from:
- # Annuaire de L'Observatoire Royal de Belgique,
- # Avenue Circulaire, 3, B-1180 BRUXELLES, CLVIIe annee, 1991
- # (Imprimerie HAYEZ, s.p.r.l., Rue Fin, 4, 1080 BRUXELLES, MCMXC),
- # pp 8-9.
- # LMT before 1892 was 0:17:30, according to the official journal of Belgium:
- # Moniteur Belge, Samedi 30 Avril 1892, N.121.
- # Thanks to Pascal Delmoitie for these references.
- # The 1918 rules are listed for completeness; they apply to unoccupied Belgium.
- # Assume Brussels switched to WET in 1918 when the armistice took effect.
- #
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Belgium 1918 only - Mar 9 0:00s 1:00 S
- Rule Belgium 1918 1919 - Oct Sat>=1 23:00s 0 -
- Rule Belgium 1919 only - Mar 1 23:00s 1:00 S
- Rule Belgium 1920 only - Feb 14 23:00s 1:00 S
- Rule Belgium 1920 only - Oct 23 23:00s 0 -
- Rule Belgium 1921 only - Mar 14 23:00s 1:00 S
- Rule Belgium 1921 only - Oct 25 23:00s 0 -
- Rule Belgium 1922 only - Mar 25 23:00s 1:00 S
- Rule Belgium 1922 1927 - Oct Sat>=1 23:00s 0 -
- Rule Belgium 1923 only - Apr 21 23:00s 1:00 S
- Rule Belgium 1924 only - Mar 29 23:00s 1:00 S
- Rule Belgium 1925 only - Apr 4 23:00s 1:00 S
- # DSH writes that a royal decree of 1926-02-22 specified the Sun following 3rd
- # Sat in Apr (except if it's Easter, in which case it's one Sunday earlier),
- # to Sun following 1st Sat in Oct, and that a royal decree of 1928-09-15
- # changed the transition times to 02:00 GMT.
- Rule Belgium 1926 only - Apr 17 23:00s 1:00 S
- Rule Belgium 1927 only - Apr 9 23:00s 1:00 S
- Rule Belgium 1928 only - Apr 14 23:00s 1:00 S
- Rule Belgium 1928 1938 - Oct Sun>=2 2:00s 0 -
- Rule Belgium 1929 only - Apr 21 2:00s 1:00 S
- Rule Belgium 1930 only - Apr 13 2:00s 1:00 S
- Rule Belgium 1931 only - Apr 19 2:00s 1:00 S
- Rule Belgium 1932 only - Apr 3 2:00s 1:00 S
- Rule Belgium 1933 only - Mar 26 2:00s 1:00 S
- Rule Belgium 1934 only - Apr 8 2:00s 1:00 S
- Rule Belgium 1935 only - Mar 31 2:00s 1:00 S
- Rule Belgium 1936 only - Apr 19 2:00s 1:00 S
- Rule Belgium 1937 only - Apr 4 2:00s 1:00 S
- Rule Belgium 1938 only - Mar 27 2:00s 1:00 S
- Rule Belgium 1939 only - Apr 16 2:00s 1:00 S
- Rule Belgium 1939 only - Nov 19 2:00s 0 -
- Rule Belgium 1940 only - Feb 25 2:00s 1:00 S
- Rule Belgium 1944 only - Sep 17 2:00s 0 -
- Rule Belgium 1945 only - Apr 2 2:00s 1:00 S
- Rule Belgium 1945 only - Sep 16 2:00s 0 -
- Rule Belgium 1946 only - May 19 2:00s 1:00 S
- Rule Belgium 1946 only - Oct 7 2:00s 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Brussels 0:17:30 - LMT 1880
- 0:17:30 - BMT 1892 May 1 12:00 # Brussels MT
- 0:00 - WET 1914 Nov 8
- 1:00 - CET 1916 May 1 0:00
- 1:00 C-Eur CE%sT 1918 Nov 11 11:00u
- 0:00 Belgium WE%sT 1940 May 20 2:00s
- 1:00 C-Eur CE%sT 1944 Sep 3
- 1:00 Belgium CE%sT 1977
- 1:00 EU CE%sT
- # Bosnia and Herzegovina
- # see Serbia
- # Bulgaria
- #
- # From Plamen Simenov via Steffen Thorsen (1999-09-09):
- # A document of Government of Bulgaria (No.94/1997) says:
- # EET --> EETDST is in 03:00 Local time in last Sunday of March ...
- # EETDST --> EET is in 04:00 Local time in last Sunday of October
- #
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Bulg 1979 only - Mar 31 23:00 1:00 S
- Rule Bulg 1979 only - Oct 1 1:00 0 -
- Rule Bulg 1980 1982 - Apr Sat>=1 23:00 1:00 S
- Rule Bulg 1980 only - Sep 29 1:00 0 -
- Rule Bulg 1981 only - Sep 27 2:00 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Sofia 1:33:16 - LMT 1880
- 1:56:56 - IMT 1894 Nov 30 # Istanbul MT?
- 2:00 - EET 1942 Nov 2 3:00
- 1:00 C-Eur CE%sT 1945
- 1:00 - CET 1945 Apr 2 3:00
- 2:00 - EET 1979 Mar 31 23:00
- 2:00 Bulg EE%sT 1982 Sep 26 2:00
- 2:00 C-Eur EE%sT 1991
- 2:00 E-Eur EE%sT 1997
- 2:00 EU EE%sT
- # Croatia
- # see Serbia
- # Cyprus
- # Please see the `asia' file for Asia/Nicosia.
- # Czech Republic
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Czech 1945 only - Apr 8 2:00s 1:00 S
- Rule Czech 1945 only - Nov 18 2:00s 0 -
- Rule Czech 1946 only - May 6 2:00s 1:00 S
- Rule Czech 1946 1949 - Oct Sun>=1 2:00s 0 -
- Rule Czech 1947 only - Apr 20 2:00s 1:00 S
- Rule Czech 1948 only - Apr 18 2:00s 1:00 S
- Rule Czech 1949 only - Apr 9 2:00s 1:00 S
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Prague 0:57:44 - LMT 1850
- 0:57:44 - PMT 1891 Oct # Prague Mean Time
- 1:00 C-Eur CE%sT 1944 Sep 17 2:00s
- 1:00 Czech CE%sT 1979
- 1:00 EU CE%sT
- # Denmark, Faroe Islands, and Greenland
- # From Jesper Norgaard Welen (2005-04-26):
- # http://www.hum.aau.dk/~poe/tid/tine/DanskTid.htm says that the law
- # [introducing standard time] was in effect from 1894-01-01....
- # The page http://www.retsinfo.dk/_GETDOCI_/ACCN/A18930008330-REGL
- # confirms this, and states that the law was put forth 1893-03-29.
- #
- # The EU treaty with effect from 1973:
- # http://www.retsinfo.dk/_GETDOCI_/ACCN/A19722110030-REGL
- #
- # This provoked a new law from 1974 to make possible summer time changes
- # in subsequenet decrees with the law
- # http://www.retsinfo.dk/_GETDOCI_/ACCN/A19740022330-REGL
- #
- # It seems however that no decree was set forward until 1980. I have
- # not found any decree, but in another related law, the effecting DST
- # changes are stated explicitly to be from 1980-04-06 at 02:00 to
- # 1980-09-28 at 02:00. If this is true, this differs slightly from
- # the EU rule in that DST runs to 02:00, not 03:00. We don't know
- # when Denmark began using the EU rule correctly, but we have only
- # confirmation of the 1980-time, so I presume it was correct in 1981:
- # The law is about the management of the extra hour, concerning
- # working hours reported and effect on obligatory-rest rules (which
- # was suspended on that night):
- # http://www.retsinfo.dk/_GETDOCI_/ACCN/C19801120554-REGL
- # From Jesper Norgaard Welen (2005-06-11):
- # The Herning Folkeblad (1980-09-26) reported that the night between
- # Saturday and Sunday the clock is set back from three to two.
- # From Paul Eggert (2005-06-11):
- # Hence the "02:00" of the 1980 law refers to standard time, not
- # wall-clock time, and so the EU rules were in effect in 1980.
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Denmark 1916 only - May 14 23:00 1:00 S
- Rule Denmark 1916 only - Sep 30 23:00 0 -
- Rule Denmark 1940 only - May 15 0:00 1:00 S
- Rule Denmark 1945 only - Apr 2 2:00s 1:00 S
- Rule Denmark 1945 only - Aug 15 2:00s 0 -
- Rule Denmark 1946 only - May 1 2:00s 1:00 S
- Rule Denmark 1946 only - Sep 1 2:00s 0 -
- Rule Denmark 1947 only - May 4 2:00s 1:00 S
- Rule Denmark 1947 only - Aug 10 2:00s 0 -
- Rule Denmark 1948 only - May 9 2:00s 1:00 S
- Rule Denmark 1948 only - Aug 8 2:00s 0 -
- #
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Copenhagen 0:50:20 - LMT 1890
- 0:50:20 - CMT 1894 Jan 1 # Copenhagen MT
- 1:00 Denmark CE%sT 1942 Nov 2 2:00s
- 1:00 C-Eur CE%sT 1945 Apr 2 2:00
- 1:00 Denmark CE%sT 1980
- 1:00 EU CE%sT
- Zone Atlantic/Faroe -0:27:04 - LMT 1908 Jan 11 # Torshavn
- 0:00 - WET 1981
- 0:00 EU WE%sT
- #
- # From Paul Eggert (2004-10-31):
- # During World War II, Germany maintained secret manned weather stations in
- # East Greenland and Franz Josef Land, but we don't know their time zones.
- # My source for this is Wilhelm Dege's book mentioned under Svalbard.
- #
- # From Paul Eggert (2006-03-22):
- # Greenland joined the EU as part of Denmark, obtained home rule on 1979-05-01,
- # and left the EU on 1985-02-01. It therefore should have been using EU
- # rules at least through 1984. Shanks & Pottenger say Scoresbysund and Godthab
- # used C-Eur rules after 1980, but IATA SSIM (1991/1996) says they use EU
- # rules since at least 1991. Assume EU rules since 1980.
- # From Gwillin Law (2001-06-06), citing
- # <http://www.statkart.no/efs/efshefter/2001/efs5-2001.pdf> (2001-03-15),
- # and with translations corrected by Steffen Thorsen:
- #
- # Greenland has four local times, and the relation to UTC
- # is according to the following time line:
- #
- # The military zone near Thule UTC-4
- # Standard Greenland time UTC-3
- # Scoresbysund UTC-1
- # Danmarkshavn UTC
- #
- # In the military area near Thule and in Danmarkshavn DST will not be
- # introduced.
- # From Rives McDow (2001-11-01):
- #
- # I correspond regularly with the Dansk Polarcenter, and wrote them at
- # the time to clarify the situation in Thule. Unfortunately, I have
- # not heard back from them regarding my recent letter. [But I have
- # info from earlier correspondence.]
- #
- # According to the center, a very small local time zone around Thule
- # Air Base keeps the time according to UTC-4, implementing daylight
- # savings using North America rules, changing the time at 02:00 local time....
- #
- # The east coast of Greenland north of the community of Scoresbysund
- # uses UTC in the same way as in Iceland, year round, with no dst.
- # There are just a few stations on this coast, including the
- # Danmarkshavn ICAO weather station mentioned in your September 29th
- # email. The other stations are two sledge patrol stations in
- # Mestersvig and Daneborg, the air force base at Station Nord, and the
- # DPC research station at Zackenberg.
- #
- # Scoresbysund and two small villages nearby keep time UTC-1 and use
- # the same daylight savings time period as in West Greenland (Godthab).
- #
- # The rest of Greenland, including Godthab (this area, although it
- # includes central Greenland, is known as west Greenland), keeps time
- # UTC-3, with daylight savings methods according to European rules.
- #
- # It is common procedure to use UTC 0 in the wilderness of East and
- # North Greenland, because it is mainly Icelandic aircraft operators
- # maintaining traffic in these areas. However, the official status of
- # this area is that it sticks with Godthab time. This area might be
- # considered a dual time zone in some respects because of this.
- # From Rives McDow (2001-11-19):
- # I heard back from someone stationed at Thule; the time change took place
- # there at 2:00 AM.
- # From Paul Eggert (2006-03-22):
- # From 1997 on the CIA map shows Danmarkshavn on GMT;
- # the 1995 map as like Godthab.
- # For lack of better info, assume they were like Godthab before 1996.
- # startkart.no says Thule does not observe DST, but this is clearly an error,
- # so go with Shanks & Pottenger for Thule transitions until this year.
- # For 2007 on assume Thule will stay in sync with US DST rules.
- #
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Thule 1991 1992 - Mar lastSun 2:00 1:00 D
- Rule Thule 1991 1992 - Sep lastSun 2:00 0 S
- Rule Thule 1993 2006 - Apr Sun>=1 2:00 1:00 D
- Rule Thule 1993 2006 - Oct lastSun 2:00 0 S
- Rule Thule 2007 max - Mar Sun>=8 2:00 1:00 D
- Rule Thule 2007 max - Nov Sun>=1 2:00 0 S
- #
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone America/Danmarkshavn -1:14:40 - LMT 1916 Jul 28
- -3:00 - WGT 1980 Apr 6 2:00
- -3:00 EU WG%sT 1996
- 0:00 - GMT
- Zone America/Scoresbysund -1:27:52 - LMT 1916 Jul 28 # Ittoqqortoormiit
- -2:00 - CGT 1980 Apr 6 2:00
- -2:00 C-Eur CG%sT 1981 Mar 29
- -1:00 EU EG%sT
- Zone America/Godthab -3:26:56 - LMT 1916 Jul 28 # Nuuk
- -3:00 - WGT 1980 Apr 6 2:00
- -3:00 EU WG%sT
- Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik air base
- -4:00 Thule A%sT
- # Estonia
- # From Peter Ilieve (1994-10-15):
- # A relative in Tallinn confirms the accuracy of the data for 1989 onwards
- # [through 1994] and gives the legal authority for it,
- # a regulation of the Government of Estonia, No. 111 of 1989....
- #
- # From Peter Ilieve (1996-10-28):
- # [IATA SSIM (1992/1996) claims that the Baltic republics switch at 01:00s,
- # but a relative confirms that Estonia still switches at 02:00s, writing:]
- # ``I do not [know] exactly but there are some little different
- # (confusing) rules for International Air and Railway Transport Schedules
- # conversion in Sunday connected with end of summer time in Estonia....
- # A discussion is running about the summer time efficiency and effect on
- # human physiology. It seems that Estonia maybe will not change to
- # summer time next spring.''
- # From Peter Ilieve (1998-11-04), heavily edited:
- # <a href="http://trip.rk.ee/cgi-bin/thw?${BASE}=akt&${OOHTML}=rtd&TA=1998&TO=1&AN=1390">
- # The 1998-09-22 Estonian time law
- # </a>
- # refers to the Eighth Directive and cites the association agreement between
- # the EU and Estonia, ratified by the Estonian law (RT II 1995, 22--27, 120).
- #
- # I also asked [my relative] whether they use any standard abbreviation
- # for their standard and summer times. He says no, they use "suveaeg"
- # (summer time) and "talveaeg" (winter time).
- # From <a href="http://www.baltictimes.com/">The Baltic Times</a> (1999-09-09)
- # via Steffen Thorsen:
- # This year will mark the last time Estonia shifts to summer time,
- # a council of the ruling coalition announced Sept. 6....
- # But what this could mean for Estonia's chances of joining the European
- # Union are still unclear. In 1994, the EU declared summer time compulsory
- # for all member states until 2001. Brussels has yet to decide what to do
- # after that.
- # From Mart Oruaas (2000-01-29):
- # Regulation no. 301 (1999-10-12) obsoletes previous regulation
- # no. 206 (1998-09-22) and thus sticks Estonia to +02:00 GMT for all
- # the year round. The regulation is effective 1999-11-01.
- # From Toomas Soome (2002-02-21):
- # The Estonian government has changed once again timezone politics.
- # Now we are using again EU rules.
- #
- # From Urmet Jaanes (2002-03-28):
- # The legislative reference is Government decree No. 84 on 2002-02-21.
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Tallinn 1:39:00 - LMT 1880
- 1:39:00 - TMT 1918 Feb # Tallinn Mean Time
- 1:00 C-Eur CE%sT 1919 Jul
- 1:39:00 - TMT 1921 May
- 2:00 - EET 1940 Aug 6
- 3:00 - MSK 1941 Sep 15
- 1:00 C-Eur CE%sT 1944 Sep 22
- 3:00 Russia MSK/MSD 1989 Mar 26 2:00s
- 2:00 1:00 EEST 1989 Sep 24 2:00s
- 2:00 C-Eur EE%sT 1998 Sep 22
- 2:00 EU EE%sT 1999 Nov 1
- 2:00 - EET 2002 Feb 21
- 2:00 EU EE%sT
- # Finland
- # From Hannu Strang (1994-09-25 06:03:37 UTC):
- # Well, here in Helsinki we're just changing from summer time to regular one,
- # and it's supposed to change at 4am...
- # From Janne Snabb (2010-0715):
- #
- # I noticed that the Finland data is not accurate for years 1981 and 1982.
- # During these two first trial years the DST adjustment was made one hour
- # earlier than in forthcoming years. Starting 1983 the adjustment was made
- # according to the central European standards.
- #
- # This is documented in Heikki Oja: Aikakirja 2007, published by The Almanac
- # Office of University of Helsinki, ISBN 952-10-3221-9, available online (in
- # Finnish) at
- #
- # <a href="http://almanakka.helsinki.fi/aikakirja/Aikakirja2007kokonaan.pdf">
- # http://almanakka.helsinki.fi/aikakirja/Aikakirja2007kokonaan.pdf
- # </a>
- #
- # Page 105 (56 in PDF version) has a handy table of all past daylight savings
- # transitions. It is easy enough to interpret without Finnish skills.
- #
- # This is also confirmed by Finnish Broadcasting Company's archive at:
- #
- # <a href="http://www.yle.fi/elavaarkisto/?s=s&g=1&ag=5&t=&a=3401">
- # http://www.yle.fi/elavaarkisto/?s=s&g=1&ag=5&t=&a=3401
- # </a>
- #
- # The news clip from 1981 says that "the time between 2 and 3 o'clock does not
- # exist tonight."
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Finland 1942 only - Apr 3 0:00 1:00 S
- Rule Finland 1942 only - Oct 3 0:00 0 -
- Rule Finland 1981 1982 - Mar lastSun 2:00 1:00 S
- Rule Finland 1981 1982 - Sep lastSun 3:00 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Helsinki 1:39:52 - LMT 1878 May 31
- 1:39:52 - HMT 1921 May # Helsinki Mean Time
- 2:00 Finland EE%sT 1983
- 2:00 EU EE%sT
- # Aaland Is
- Link Europe/Helsinki Europe/Mariehamn
- # France
- # From Ciro Discepolo (2000-12-20):
- #
- # Henri Le Corre, Regimes Horaires pour le monde entier, Editions
- # Traditionnelles - Paris 2 books, 1993
- #
- # Gabriel, Traite de l'heure dans le monde, Guy Tredaniel editeur,
- # Paris, 1991
- #
- # Francoise Gauquelin, Problemes de l'heure resolus en astrologie,
- # Guy tredaniel, Paris 1987
- #
- # Shank & Pottenger seem to use `24:00' ambiguously; resolve it with Whitman.
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule France 1916 only - Jun 14 23:00s 1:00 S
- Rule France 1916 1919 - Oct Sun>=1 23:00s 0 -
- Rule France 1917 only - Mar 24 23:00s 1:00 S
- Rule France 1918 only - Mar 9 23:00s 1:00 S
- Rule France 1919 only - Mar 1 23:00s 1:00 S
- Rule France 1920 only - Feb 14 23:00s 1:00 S
- Rule France 1920 only - Oct 23 23:00s 0 -
- Rule France 1921 only - Mar 14 23:00s 1:00 S
- Rule France 1921 only - Oct 25 23:00s 0 -
- Rule France 1922 only - Mar 25 23:00s 1:00 S
- # DSH writes that a law of 1923-05-24 specified 3rd Sat in Apr at 23:00 to 1st
- # Sat in Oct at 24:00; and that in 1930, because of Easter, the transitions
- # were Apr 12 and Oct 5. Go with Shanks & Pottenger.
- Rule France 1922 1938 - Oct Sat>=1 23:00s 0 -
- Rule France 1923 only - May 26 23:00s 1:00 S
- Rule France 1924 only - Mar 29 23:00s 1:00 S
- Rule France 1925 only - Apr 4 23:00s 1:00 S
- Rule France 1926 only - Apr 17 23:00s 1:00 S
- Rule France 1927 only - Apr 9 23:00s 1:00 S
- Rule France 1928 only - Apr 14 23:00s 1:00 S
- Rule France 1929 only - Apr 20 23:00s 1:00 S
- Rule France 1930 only - Apr 12 23:00s 1:00 S
- Rule France 1931 only - Apr 18 23:00s 1:00 S
- Rule France 1932 only - Apr 2 23:00s 1:00 S
- Rule France 1933 only - Mar 25 23:00s 1:00 S
- Rule France 1934 only - Apr 7 23:00s 1:00 S
- Rule France 1935 only - Mar 30 23:00s 1:00 S
- Rule France 1936 only - Apr 18 23:00s 1:00 S
- Rule France 1937 only - Apr 3 23:00s 1:00 S
- Rule France 1938 only - Mar 26 23:00s 1:00 S
- Rule France 1939 only - Apr 15 23:00s 1:00 S
- Rule France 1939 only - Nov 18 23:00s 0 -
- Rule France 1940 only - Feb 25 2:00 1:00 S
- # The French rules for 1941-1944 were not used in Paris, but Shanks & Pottenger
- # write that they were used in Monaco and in many French locations.
- # Le Corre writes that the upper limit of the free zone was Arneguy, Orthez,
- # Mont-de-Marsan, Bazas, Langon, Lamotte-Montravel, Marouil, La
- # Rochefoucault, Champagne-Mouton, La Roche-Posay, La Haye-Descartes,
- # Loches, Montrichard, Vierzon, Bourges, Moulins, Digoin,
- # Paray-le-Monial, Montceau-les-Mines, Chalons-sur-Saone, Arbois,
- # Dole, Morez, St-Claude, and Collonges (Haute-Savoie).
- Rule France 1941 only - May 5 0:00 2:00 M # Midsummer
- # Shanks & Pottenger say this transition occurred at Oct 6 1:00,
- # but go with Denis Excoffier (1997-12-12),
- # who quotes the Ephemerides Astronomiques for 1998 from Bureau des Longitudes
- # as saying 5/10/41 22hUT.
- Rule France 1941 only - Oct 6 0:00 1:00 S
- Rule France 1942 only - Mar 9 0:00 2:00 M
- Rule France 1942 only - Nov 2 3:00 1:00 S
- Rule France 1943 only - Mar 29 2:00 2:00 M
- Rule France 1943 only - Oct 4 3:00 1:00 S
- Rule France 1944 only - Apr 3 2:00 2:00 M
- Rule France 1944 only - Oct 8 1:00 1:00 S
- Rule France 1945 only - Apr 2 2:00 2:00 M
- Rule France 1945 only - Sep 16 3:00 0 -
- # Shanks & Pottenger give Mar 28 2:00 and Sep 26 3:00;
- # go with Excoffier's 28/3/76 0hUT and 25/9/76 23hUT.
- Rule France 1976 only - Mar 28 1:00 1:00 S
- Rule France 1976 only - Sep 26 1:00 0 -
- # Shanks & Pottenger give 0:09:20 for Paris Mean Time, and Whitman 0:09:05,
- # but Howse quotes the actual French legislation as saying 0:09:21.
- # Go with Howse. Howse writes that the time in France was officially based
- # on PMT-0:09:21 until 1978-08-09, when the time base finally switched to UTC.
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Paris 0:09:21 - LMT 1891 Mar 15 0:01
- 0:09:21 - PMT 1911 Mar 11 0:01 # Paris MT
- # Shanks & Pottenger give 1940 Jun 14 0:00; go with Excoffier and Le Corre.
- 0:00 France WE%sT 1940 Jun 14 23:00
- # Le Corre says Paris stuck with occupied-France time after the liberation;
- # go with Shanks & Pottenger.
- 1:00 C-Eur CE%sT 1944 Aug 25
- 0:00 France WE%sT 1945 Sep 16 3:00
- 1:00 France CE%sT 1977
- 1:00 EU CE%sT
- # Germany
- # From Markus Kuhn (1998-09-29):
- # The German time zone web site by the Physikalisch-Technische
- # Bundesanstalt contains DST information back to 1916.
- # [See tz-link.htm for the URL.]
- # From Joerg Schilling (2002-10-23):
- # In 1945, Berlin was switched to Moscow Summer time (GMT+4) by
- # <a href="http://www.dhm.de/lemo/html/biografien/BersarinNikolai/">
- # General [Nikolai] Bersarin</a>.
- # From Paul Eggert (2003-03-08):
- # <a href="http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee8525662300459099/defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf">
- # http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee8525662300459099/defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf
- # </a>
- # says that Bersarin issued an order to use Moscow time on May 20.
- # However, Moscow did not observe daylight saving in 1945, so
- # this was equivalent to CEMT (GMT+3), not GMT+4.
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Germany 1946 only - Apr 14 2:00s 1:00 S
- Rule Germany 1946 only - Oct 7 2:00s 0 -
- Rule Germany 1947 1949 - Oct Sun>=1 2:00s 0 -
- # http://www.ptb.de/de/org/4/44/441/salt.htm says the following transition
- # occurred at 3:00 MEZ, not the 2:00 MEZ given in Shanks & Pottenger.
- # Go with the PTB.
- Rule Germany 1947 only - Apr 6 3:00s 1:00 S
- Rule Germany 1947 only - May 11 2:00s 2:00 M
- Rule Germany 1947 only - Jun 29 3:00 1:00 S
- Rule Germany 1948 only - Apr 18 2:00s 1:00 S
- Rule Germany 1949 only - Apr 10 2:00s 1:00 S
- Rule SovietZone 1945 only - May 24 2:00 2:00 M # Midsummer
- Rule SovietZone 1945 only - Sep 24 3:00 1:00 S
- Rule SovietZone 1945 only - Nov 18 2:00s 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Berlin 0:53:28 - LMT 1893 Apr
- 1:00 C-Eur CE%sT 1945 May 24 2:00
- 1:00 SovietZone CE%sT 1946
- 1:00 Germany CE%sT 1980
- 1:00 EU CE%sT
- # Georgia
- # Please see the "asia" file for Asia/Tbilisi.
- # Herodotus (Histories, IV.45) says Georgia north of the Phasis (now Rioni)
- # is in Europe. Our reference location Tbilisi is in the Asian part.
- # Gibraltar
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Gibraltar -0:21:24 - LMT 1880 Aug 2 0:00s
- 0:00 GB-Eire %s 1957 Apr 14 2:00
- 1:00 - CET 1982
- 1:00 EU CE%sT
- # Greece
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- # Whitman gives 1932 Jul 5 - Nov 1; go with Shanks & Pottenger.
- Rule Greece 1932 only - Jul 7 0:00 1:00 S
- Rule Greece 1932 only - Sep 1 0:00 0 -
- # Whitman gives 1941 Apr 25 - ?; go with Shanks & Pottenger.
- Rule Greece 1941 only - Apr 7 0:00 1:00 S
- # Whitman gives 1942 Feb 2 - ?; go with Shanks & Pottenger.
- Rule Greece 1942 only - Nov 2 3:00 0 -
- Rule Greece 1943 only - Mar 30 0:00 1:00 S
- Rule Greece 1943 only - Oct 4 0:00 0 -
- # Whitman gives 1944 Oct 3 - Oct 31; go with Shanks & Pottenger.
- Rule Greece 1952 only - Jul 1 0:00 1:00 S
- Rule Greece 1952 only - Nov 2 0:00 0 -
- Rule Greece 1975 only - Apr 12 0:00s 1:00 S
- Rule Greece 1975 only - Nov 26 0:00s 0 -
- Rule Greece 1976 only - Apr 11 2:00s 1:00 S
- Rule Greece 1976 only - Oct 10 2:00s 0 -
- Rule Greece 1977 1978 - Apr Sun>=1 2:00s 1:00 S
- Rule Greece 1977 only - Sep 26 2:00s 0 -
- Rule Greece 1978 only - Sep 24 4:00 0 -
- Rule Greece 1979 only - Apr 1 9:00 1:00 S
- Rule Greece 1979 only - Sep 29 2:00 0 -
- Rule Greece 1980 only - Apr 1 0:00 1:00 S
- Rule Greece 1980 only - Sep 28 0:00 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Athens 1:34:52 - LMT 1895 Sep 14
- 1:34:52 - AMT 1916 Jul 28 0:01 # Athens MT
- 2:00 Greece EE%sT 1941 Apr 30
- 1:00 Greece CE%sT 1944 Apr 4
- 2:00 Greece EE%sT 1981
- # Shanks & Pottenger say it switched to C-Eur in 1981;
- # go with EU instead, since Greece joined it on Jan 1.
- 2:00 EU EE%sT
- # Hungary
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Hungary 1918 only - Apr 1 3:00 1:00 S
- Rule Hungary 1918 only - Sep 29 3:00 0 -
- Rule Hungary 1919 only - Apr 15 3:00 1:00 S
- Rule Hungary 1919 only - Sep 15 3:00 0 -
- Rule Hungary 1920 only - Apr 5 3:00 1:00 S
- Rule Hungary 1920 only - Sep 30 3:00 0 -
- Rule Hungary 1945 only - May 1 23:00 1:00 S
- Rule Hungary 1945 only - Nov 3 0:00 0 -
- Rule Hungary 1946 only - Mar 31 2:00s 1:00 S
- Rule Hungary 1946 1949 - Oct Sun>=1 2:00s 0 -
- Rule Hungary 1947 1949 - Apr Sun>=4 2:00s 1:00 S
- Rule Hungary 1950 only - Apr 17 2:00s 1:00 S
- Rule Hungary 1950 only - Oct 23 2:00s 0 -
- Rule Hungary 1954 1955 - May 23 0:00 1:00 S
- Rule Hungary 1954 1955 - Oct 3 0:00 0 -
- Rule Hungary 1956 only - Jun Sun>=1 0:00 1:00 S
- Rule Hungary 1956 only - Sep lastSun 0:00 0 -
- Rule Hungary 1957 only - Jun Sun>=1 1:00 1:00 S
- Rule Hungary 1957 only - Sep lastSun 3:00 0 -
- Rule Hungary 1980 only - Apr 6 1:00 1:00 S
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Budapest 1:16:20 - LMT 1890 Oct
- 1:00 C-Eur CE%sT 1918
- 1:00 Hungary CE%sT 1941 Apr 6 2:00
- 1:00 C-Eur CE%sT 1945
- 1:00 Hungary CE%sT 1980 Sep 28 2:00s
- 1:00 EU CE%sT
- # Iceland
- #
- # From Adam David (1993-11-06):
- # The name of the timezone in Iceland for system / mail / news purposes is GMT.
- #
- # (1993-12-05):
- # This material is paraphrased from the 1988 edition of the University of
- # Iceland Almanak.
- #
- # From January 1st, 1908 the whole of Iceland was standardised at 1 hour
- # behind GMT. Previously, local mean solar time was used in different parts
- # of Iceland, the almanak had been based on Reykjavik mean solar time which
- # was 1 hour and 28 minutes behind GMT.
- #
- # "first day of winter" referred to [below] means the first day of the 26 weeks
- # of winter, according to the old icelandic calendar that dates back to the
- # time the norsemen first settled Iceland. The first day of winter is always
- # Saturday, but is not dependent on the Julian or Gregorian calendars.
- #
- # (1993-12-10):
- # I have a reference from the Oxford Icelandic-English dictionary for the
- # beginning of winter, which ties it to the ecclesiastical calendar (and thus
- # to the julian/gregorian calendar) over the period in question.
- # the winter begins on the Saturday next before St. Luke's day
- # (old style), or on St. Luke's day, if a Saturday.
- # St. Luke's day ought to be traceable from ecclesiastical sources. "old style"
- # might be a reference to the Julian calendar as opposed to Gregorian, or it
- # might mean something else (???).
- #
- # From Paul Eggert (2006-03-22):
- # The Iceland Almanak, Shanks & Pottenger, and Whitman disagree on many points.
- # We go with the Almanak, except for one claim from Shanks & Pottenger, namely
- # that Reykavik was 21W57 from 1837 to 1908, local mean time before that.
- #
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Iceland 1917 1918 - Feb 19 23:00 1:00 S
- Rule Iceland 1917 only - Oct 21 1:00 0 -
- Rule Iceland 1918 only - Nov 16 1:00 0 -
- Rule Iceland 1939 only - Apr 29 23:00 1:00 S
- Rule Iceland 1939 only - Nov 29 2:00 0 -
- Rule Iceland 1940 only - Feb 25 2:00 1:00 S
- Rule Iceland 1940 only - Nov 3 2:00 0 -
- Rule Iceland 1941 only - Mar 2 1:00s 1:00 S
- Rule Iceland 1941 only - Nov 2 1:00s 0 -
- Rule Iceland 1942 only - Mar 8 1:00s 1:00 S
- Rule Iceland 1942 only - Oct 25 1:00s 0 -
- # 1943-1946 - first Sunday in March until first Sunday in winter
- Rule Iceland 1943 1946 - Mar Sun>=1 1:00s 1:00 S
- Rule Iceland 1943 1948 - Oct Sun>=22 1:00s 0 -
- # 1947-1967 - first Sunday in April until first Sunday in winter
- Rule Iceland 1947 1967 - Apr Sun>=1 1:00s 1:00 S
- # 1949 Oct transition delayed by 1 week
- Rule Iceland 1949 only - Oct 30 1:00s 0 -
- Rule Iceland 1950 1966 - Oct Sun>=22 1:00s 0 -
- Rule Iceland 1967 only - Oct 29 1:00s 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Atlantic/Reykjavik -1:27:24 - LMT 1837
- -1:27:48 - RMT 1908 # Reykjavik Mean Time?
- -1:00 Iceland IS%sT 1968 Apr 7 1:00s
- 0:00 - GMT
- # Italy
- #
- # From Paul Eggert (2001-03-06):
- # Sicily and Sardinia each had their own time zones from 1866 to 1893,
- # called Palermo Time (+00:53:28) and Cagliari Time (+00:36:32).
- # During World War II, German-controlled Italy used German time.
- # But these events all occurred before the 1970 cutoff,
- # so record only the time in Rome.
- #
- # From Paul Eggert (2006-03-22):
- # For Italian DST we have three sources: Shanks & Pottenger, Whitman, and
- # F. Pollastri
- # <a href="http://toi.iriti.cnr.it/uk/ienitlt.html">
- # Day-light Saving Time in Italy (2006-02-03)
- # </a>
- # (`FP' below), taken from an Italian National Electrotechnical Institute
- # publication. When the three sources disagree, guess who's right, as follows:
- #
- # year FP Shanks&P. (S) Whitman (W) Go with:
- # 1916 06-03 06-03 24:00 06-03 00:00 FP & W
- # 09-30 09-30 24:00 09-30 01:00 FP; guess 24:00s
- # 1917 04-01 03-31 24:00 03-31 00:00 FP & S
- # 09-30 09-29 24:00 09-30 01:00 FP & W
- # 1918 03-09 03-09 24:00 03-09 00:00 FP & S
- # 10-06 10-05 24:00 10-06 01:00 FP & W
- # 1919 03-01 03-01 24:00 03-01 00:00 FP & S
- # 10-04 10-04 24:00 10-04 01:00 FP; guess 24:00s
- # 1920 03-20 03-20 24:00 03-20 00:00 FP & S
- # 09-18 09-18 24:00 10-01 01:00 FP; guess 24:00s
- # 1944 04-02 04-03 02:00 S (see C-Eur)
- # 09-16 10-02 03:00 FP; guess 24:00s
- # 1945 09-14 09-16 24:00 FP; guess 24:00s
- # 1970 05-21 05-31 00:00 S
- # 09-20 09-27 00:00 S
- #
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Italy 1916 only - Jun 3 0:00s 1:00 S
- Rule Italy 1916 only - Oct 1 0:00s 0 -
- Rule Italy 1917 only - Apr 1 0:00s 1:00 S
- Rule Italy 1917 only - Sep 30 0:00s 0 -
- Rule Italy 1918 only - Mar 10 0:00s 1:00 S
- Rule Italy 1918 1919 - Oct Sun>=1 0:00s 0 -
- Rule Italy 1919 only - Mar 2 0:00s 1:00 S
- Rule Italy 1920 only - Mar 21 0:00s 1:00 S
- Rule Italy 1920 only - Sep 19 0:00s 0 -
- Rule Italy 1940 only - Jun 15 0:00s 1:00 S
- Rule Italy 1944 only - Sep 17 0:00s 0 -
- Rule Italy 1945 only - Apr 2 2:00 1:00 S
- Rule Italy 1945 only - Sep 15 0:00s 0 -
- Rule Italy 1946 only - Mar 17 2:00s 1:00 S
- Rule Italy 1946 only - Oct 6 2:00s 0 -
- Rule Italy 1947 only - Mar 16 0:00s 1:00 S
- Rule Italy 1947 only - Oct 5 0:00s 0 -
- Rule Italy 1948 only - Feb 29 2:00s 1:00 S
- Rule Italy 1948 only - Oct 3 2:00s 0 -
- Rule Italy 1966 1968 - May Sun>=22 0:00 1:00 S
- Rule Italy 1966 1969 - Sep Sun>=22 0:00 0 -
- Rule Italy 1969 only - Jun 1 0:00 1:00 S
- Rule Italy 1970 only - May 31 0:00 1:00 S
- Rule Italy 1970 only - Sep lastSun 0:00 0 -
- Rule Italy 1971 1972 - May Sun>=22 0:00 1:00 S
- Rule Italy 1971 only - Sep lastSun 1:00 0 -
- Rule Italy 1972 only - Oct 1 0:00 0 -
- Rule Italy 1973 only - Jun 3 0:00 1:00 S
- Rule Italy 1973 1974 - Sep lastSun 0:00 0 -
- Rule Italy 1974 only - May 26 0:00 1:00 S
- Rule Italy 1975 only - Jun 1 0:00s 1:00 S
- Rule Italy 1975 1977 - Sep lastSun 0:00s 0 -
- Rule Italy 1976 only - May 30 0:00s 1:00 S
- Rule Italy 1977 1979 - May Sun>=22 0:00s 1:00 S
- Rule Italy 1978 only - Oct 1 0:00s 0 -
- Rule Italy 1979 only - Sep 30 0:00s 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Rome 0:49:56 - LMT 1866 Sep 22
- 0:49:56 - RMT 1893 Nov 1 0:00s # Rome Mean
- 1:00 Italy CE%sT 1942 Nov 2 2:00s
- 1:00 C-Eur CE%sT 1944 Jul
- 1:00 Italy CE%sT 1980
- 1:00 EU CE%sT
- Link Europe/Rome Europe/Vatican
- Link Europe/Rome Europe/San_Marino
- # Latvia
- # From Liene Kanepe (1998-09-17):
- # I asked about this matter Scientific Secretary of the Institute of Astronomy
- # of The University of Latvia Dr. paed Mr. Ilgonis Vilks. I also searched the
- # correct data in juridical acts and I found some juridical documents about
- # changes in the counting of time in Latvia from 1981....
- #
- # Act No.35 of the Council of Ministers of Latvian SSR of 1981-01-22 ...
- # according to the Act No.925 of the Council of Ministers of USSR of 1980-10-24
- # ...: all year round the time of 2nd time zone + 1 hour, in addition turning
- # the hands of the clock 1 hour forward on 1 April at 00:00 (GMT 31 March 21:00)
- # and 1 hour backward on the 1 October at 00:00 (GMT 30 September 20:00).
- #
- # Act No.592 of the Council of Ministers of Latvian SSR of 1984-09-24 ...
- # according to the Act No.967 of the Council of Ministers of USSR of 1984-09-13
- # ...: all year round the time of 2nd time zone + 1 hour, in addition turning
- # the hands of the clock 1 hour forward on the last Sunday of March at 02:00
- # (GMT 23:00 on the previous day) and 1 hour backward on the last Sunday of
- # September at 03:00 (GMT 23:00 on the previous day).
- #
- # Act No.81 of the Council of Ministers of Latvian SSR of 1989-03-22 ...
- # according to the Act No.227 of the Council of Ministers of USSR of 1989-03-14
- # ...: since the last Sunday of March 1989 in Lithuanian SSR, Latvian SSR,
- # Estonian SSR and Kaliningrad region of Russian Federation all year round the
- # time of 2nd time zone (Moscow time minus one hour). On the territory of Latvia
- # transition to summer time is performed on the last Sunday of March at 02:00
- # (GMT 00:00), turning the hands of the clock 1 hour forward. The end of
- # daylight saving time is performed on the last Sunday of September at 03:00
- # (GMT 00:00), turning the hands of the clock 1 hour backward. Exception is
- # 1989-03-26, when we must not turn the hands of the clock....
- #
- # The Regulations of the Cabinet of Ministers of the Republic of Latvia of
- # 1997-01-21 on transition to Summer time ... established the same order of
- # daylight savings time settings as in the States of the European Union.
- # From Andrei Ivanov (2000-03-06):
- # This year Latvia will not switch to Daylight Savings Time (as specified in
- # <a href="http://www.lv-laiks.lv/wwwraksti/2000/071072/vd4.htm">
- # The Regulations of the Cabinet of Ministers of the Rep. of Latvia of
- # 29-Feb-2000 (#79)</a>, in Latvian for subscribers only).
- # <a href="http://www.rferl.org/newsline/2001/01/3-CEE/cee-030101.html">
- # From RFE/RL Newsline (2001-01-03), noted after a heads-up by Rives McDow:
- # </a>
- # The Latvian government on 2 January decided that the country will
- # institute daylight-saving time this spring, LETA reported.
- # Last February the three Baltic states decided not to turn back their
- # clocks one hour in the spring....
- # Minister of Economy Aigars Kalvitis noted that Latvia had too few
- # daylight hours and thus decided to comply with a draft European
- # Commission directive that provides for instituting daylight-saving
- # time in EU countries between 2002 and 2006. The Latvian government
- # urged Lithuania and Estonia to adopt a similar time policy, but it
- # appears that they will not do so....
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Latvia 1989 1996 - Mar lastSun 2:00s 1:00 S
- Rule Latvia 1989 1996 - Sep lastSun 2:00s 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Riga 1:36:24 - LMT 1880
- 1:36:24 - RMT 1918 Apr 15 2:00 #Riga Mean Time
- 1:36:24 1:00 LST 1918 Sep 16 3:00 #Latvian Summer
- 1:36:24 - RMT 1919 Apr 1 2:00
- 1:36:24 1:00 LST 1919 May 22 3:00
- 1:36:24 - RMT 1926 May 11
- 2:00 - EET 1940 Aug 5
- 3:00 - MSK 1941 Jul
- 1:00 C-Eur CE%sT 1944 Oct 13
- 3:00 Russia MSK/MSD 1989 Mar lastSun 2:00s
- 2:00 1:00 EEST 1989 Sep lastSun 2:00s
- 2:00 Latvia EE%sT 1997 Jan 21
- 2:00 EU EE%sT 2000 Feb 29
- 2:00 - EET 2001 Jan 2
- 2:00 EU EE%sT
- # Liechtenstein
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Vaduz 0:38:04 - LMT 1894 Jun
- 1:00 - CET 1981
- 1:00 EU CE%sT
- # Lithuania
- # From Paul Eggert (1996-11-22):
- # IATA SSIM (1992/1996) says Lithuania uses W-Eur rules, but since it is
- # known to be wrong about Estonia and Latvia, assume it's wrong here too.
- # From Marius Gedminas (1998-08-07):
- # I would like to inform that in this year Lithuanian time zone
- # (Europe/Vilnius) was changed.
- # From <a href="http://www.elta.lt/">ELTA</a> No. 972 (2582) (1999-09-29),
- # via Steffen Thorsen:
- # Lithuania has shifted back to the second time zone (GMT plus two hours)
- # to be valid here starting from October 31,
- # as decided by the national government on Wednesday....
- # The Lithuanian government also announced plans to consider a
- # motion to give up shifting to summer time in spring, as it was
- # already done by Estonia.
- # From the <a href="http://www.tourism.lt/informa/ff.htm">
- # Fact File, Lithuanian State Department of Tourism
- # </a> (2000-03-27): Local time is GMT+2 hours ..., no daylight saving.
- # From a user via Klaus Marten (2003-02-07):
- # As a candidate for membership of the European Union, Lithuania will
- # observe Summer Time in 2003, changing its clocks at the times laid
- # down in EU Directive 2000/84 of 19.I.01 (i.e. at the same times as its
- # neighbour Latvia). The text of the Lithuanian government Order of
- # 7.XI.02 to this effect can be found at
- # http://www.lrvk.lt/nut/11/n1749.htm
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Vilnius 1:41:16 - LMT 1880
- 1:24:00 - WMT 1917 # Warsaw Mean Time
- 1:35:36 - KMT 1919 Oct 10 # Kaunas Mean Time
- 1:00 - CET 1920 Jul 12
- 2:00 - EET 1920 Oct 9
- 1:00 - CET 1940 Aug 3
- 3:00 - MSK 1941 Jun 24
- 1:00 C-Eur CE%sT 1944 Aug
- 3:00 Russia MSK/MSD 1991 Mar 31 2:00s
- 2:00 1:00 EEST 1991 Sep 29 2:00s
- 2:00 C-Eur EE%sT 1998
- 2:00 - EET 1998 Mar 29 1:00u
- 1:00 EU CE%sT 1999 Oct 31 1:00u
- 2:00 - EET 2003 Jan 1
- 2:00 EU EE%sT
- # Luxembourg
- # Whitman disagrees with most of these dates in minor ways;
- # go with Shanks & Pottenger.
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Lux 1916 only - May 14 23:00 1:00 S
- Rule Lux 1916 only - Oct 1 1:00 0 -
- Rule Lux 1917 only - Apr 28 23:00 1:00 S
- Rule Lux 1917 only - Sep 17 1:00 0 -
- Rule Lux 1918 only - Apr Mon>=15 2:00s 1:00 S
- Rule Lux 1918 only - Sep Mon>=15 2:00s 0 -
- Rule Lux 1919 only - Mar 1 23:00 1:00 S
- Rule Lux 1919 only - Oct 5 3:00 0 -
- Rule Lux 1920 only - Feb 14 23:00 1:00 S
- Rule Lux 1920 only - Oct 24 2:00 0 -
- Rule Lux 1921 only - Mar 14 23:00 1:00 S
- Rule Lux 1921 only - Oct 26 2:00 0 -
- Rule Lux 1922 only - Mar 25 23:00 1:00 S
- Rule Lux 1922 only - Oct Sun>=2 1:00 0 -
- Rule Lux 1923 only - Apr 21 23:00 1:00 S
- Rule Lux 1923 only - Oct Sun>=2 2:00 0 -
- Rule Lux 1924 only - Mar 29 23:00 1:00 S
- Rule Lux 1924 1928 - Oct Sun>=2 1:00 0 -
- Rule Lux 1925 only - Apr 5 23:00 1:00 S
- Rule Lux 1926 only - Apr 17 23:00 1:00 S
- Rule Lux 1927 only - Apr 9 23:00 1:00 S
- Rule Lux 1928 only - Apr 14 23:00 1:00 S
- Rule Lux 1929 only - Apr 20 23:00 1:00 S
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Luxembourg 0:24:36 - LMT 1904 Jun
- 1:00 Lux CE%sT 1918 Nov 25
- 0:00 Lux WE%sT 1929 Oct 6 2:00s
- 0:00 Belgium WE%sT 1940 May 14 3:00
- 1:00 C-Eur WE%sT 1944 Sep 18 3:00
- 1:00 Belgium CE%sT 1977
- 1:00 EU CE%sT
- # Macedonia
- # see Serbia
- # Malta
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Malta 1973 only - Mar 31 0:00s 1:00 S
- Rule Malta 1973 only - Sep 29 0:00s 0 -
- Rule Malta 1974 only - Apr 21 0:00s 1:00 S
- Rule Malta 1974 only - Sep 16 0:00s 0 -
- Rule Malta 1975 1979 - Apr Sun>=15 2:00 1:00 S
- Rule Malta 1975 1980 - Sep Sun>=15 2:00 0 -
- Rule Malta 1980 only - Mar 31 2:00 1:00 S
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Malta 0:58:04 - LMT 1893 Nov 2 0:00s # Valletta
- 1:00 Italy CE%sT 1942 Nov 2 2:00s
- 1:00 C-Eur CE%sT 1945 Apr 2 2:00s
- 1:00 Italy CE%sT 1973 Mar 31
- 1:00 Malta CE%sT 1981
- 1:00 EU CE%sT
- # Moldova
- # From Paul Eggert (2006-03-22):
- # A previous version of this database followed Shanks & Pottenger, who write
- # that Tiraspol switched to Moscow time on 1992-01-19 at 02:00.
- # However, this is most likely an error, as Moldova declared independence
- # on 1991-08-27 (the 1992-01-19 date is that of a Russian decree).
- # In early 1992 there was large-scale interethnic violence in the area
- # and it's possible that some Russophones continued to observe Moscow time.
- # But [two people] separately reported via
- # Jesper Norgaard that as of 2001-01-24 Tiraspol was like Chisinau.
- # The Tiraspol entry has therefore been removed for now.
- #
- # From Alexander Krivenyshev (2011-10-17):
- # Pridnestrovian Moldavian Republic (PMR, also known as
- # "Pridnestrovie") has abolished seasonal clock change (no transition
- # to the Winter Time).
- #
- # News (in Russian):
- # <a href="http://www.kyivpost.ua/russia/news/pridnestrove-otkazalos-ot-perehoda-na-zimnee-vremya-30954.html">
- # http://www.kyivpost.ua/russia/news/pridnestrove-otkazalos-ot-perehoda-na-zimnee-vremya-30954.html
- # </a>
- #
- # <a href="http://www.allmoldova.com/moldova-news/1249064116.html">
- # http://www.allmoldova.com/moldova-news/1249064116.html
- # </a>
- #
- # The substance of this change (reinstatement of the Tiraspol entry)
- # is from a patch from Petr Machata (2011-10-17)
- #
- # From Tim Parenti (2011-10-19)
- # In addition, being situated at +4651+2938 would give Tiraspol
- # a pre-1880 LMT offset of 1:58:32.
- #
- # (which agrees with the earlier entry that had been removed)
- #
- # From Alexander Krivenyshev (2011-10-26)
- # NO need to divide Moldova into two timezones at this point.
- # As of today, Transnistria (Pridnestrovie)- Tiraspol reversed its own
- # decision to abolish DST this winter.
- # Following Moldova and neighboring Ukraine- Transnistria (Pridnestrovie)-
- # Tiraspol will go back to winter time on October 30, 2011.
- # News from Moldova (in russian):
- # <a href="http://ru.publika.md/link_317061.html">
- # http://ru.publika.md/link_317061.html
- # </a>
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Chisinau 1:55:20 - LMT 1880
- 1:55 - CMT 1918 Feb 15 # Chisinau MT
- 1:44:24 - BMT 1931 Jul 24 # Bucharest MT
- 2:00 Romania EE%sT 1940 Aug 15
- 2:00 1:00 EEST 1941 Jul 17
- 1:00 C-Eur CE%sT 1944 Aug 24
- 3:00 Russia MSK/MSD 1990
- 3:00 - MSK 1990 May 6
- 2:00 - EET 1991
- 2:00 Russia EE%sT 1992
- 2:00 E-Eur EE%sT 1997
- # See Romania commentary for the guessed 1997 transition to EU rules.
- 2:00 EU EE%sT
- # Monaco
- # Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's
- # more precise 0:09:21.
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Monaco 0:29:32 - LMT 1891 Mar 15
- 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time
- 0:00 France WE%sT 1945 Sep 16 3:00
- 1:00 France CE%sT 1977
- 1:00 EU CE%sT
- # Montenegro
- # see Serbia
- # Netherlands
- # Howse writes that the Netherlands' railways used GMT between 1892 and 1940,
- # but for other purposes the Netherlands used Amsterdam mean time.
- # However, Robert H. van Gent writes (2001-04-01):
- # Howse's statement is only correct up to 1909. From 1909-05-01 (00:00:00
- # Amsterdam mean time) onwards, the whole of the Netherlands (including
- # the Dutch railways) was required by law to observe Amsterdam mean time
- # (19 minutes 32.13 seconds ahead of GMT). This had already been the
- # common practice (except for the railways) for many decades but it was
- # not until 1909 when the Dutch government finally defined this by law.
- # On 1937-07-01 this was changed to 20 minutes (exactly) ahead of GMT and
- # was generally known as Dutch Time ("Nederlandse Tijd").
- #
- # (2001-04-08):
- # 1892-05-01 was the date when the Dutch railways were by law required to
- # observe GMT while the remainder of the Netherlands adhered to the common
- # practice of following Amsterdam mean time.
- #
- # (2001-04-09):
- # In 1835 the authorities of the province of North Holland requested the
- # municipal authorities of the towns and cities in the province to observe
- # Amsterdam mean time but I do not know in how many cases this request was
- # actually followed.
- #
- # From 1852 onwards the Dutch telegraph offices were by law required to
- # observe Amsterdam mean time. As the time signals from the observatory of
- # Leiden were also distributed by the telegraph system, I assume that most
- # places linked up with the telegraph (and railway) system automatically
- # adopted Amsterdam mean time.
- #
- # Although the early Dutch railway companies initially observed a variety
- # of times, most of them had adopted Amsterdam mean time by 1858 but it
- # was not until 1866 when they were all required by law to observe
- # Amsterdam mean time.
- # The data before 1945 are taken from
- # <http://www.phys.uu.nl/~vgent/wettijd/wettijd.htm>.
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Neth 1916 only - May 1 0:00 1:00 NST # Netherlands Summer Time
- Rule Neth 1916 only - Oct 1 0:00 0 AMT # Amsterdam Mean Time
- Rule Neth 1917 only - Apr 16 2:00s 1:00 NST
- Rule Neth 1917 only - Sep 17 2:00s 0 AMT
- Rule Neth 1918 1921 - Apr Mon>=1 2:00s 1:00 NST
- Rule Neth 1918 1921 - Sep lastMon 2:00s 0 AMT
- Rule Neth 1922 only - Mar lastSun 2:00s 1:00 NST
- Rule Neth 1922 1936 - Oct Sun>=2 2:00s 0 AMT
- Rule Neth 1923 only - Jun Fri>=1 2:00s 1:00 NST
- Rule Neth 1924 only - Mar lastSun 2:00s 1:00 NST
- Rule Neth 1925 only - Jun Fri>=1 2:00s 1:00 NST
- # From 1926 through 1939 DST began 05-15, except that it was delayed by a week
- # in years when 05-15 fell in the Pentecost weekend.
- Rule Neth 1926 1931 - May 15 2:00s 1:00 NST
- Rule Neth 1932 only - May 22 2:00s 1:00 NST
- Rule Neth 1933 1936 - May 15 2:00s 1:00 NST
- Rule Neth 1937 only - May 22 2:00s 1:00 NST
- Rule Neth 1937 only - Jul 1 0:00 1:00 S
- Rule Neth 1937 1939 - Oct Sun>=2 2:00s 0 -
- Rule Neth 1938 1939 - May 15 2:00s 1:00 S
- Rule Neth 1945 only - Apr 2 2:00s 1:00 S
- Rule Neth 1945 only - Sep 16 2:00s 0 -
- #
- # Amsterdam Mean Time was +00:19:32.13 exactly, but the .13 is omitted
- # below because the current format requires GMTOFF to be an integer.
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Amsterdam 0:19:32 - LMT 1835
- 0:19:32 Neth %s 1937 Jul 1
- 0:20 Neth NE%sT 1940 May 16 0:00 # Dutch Time
- 1:00 C-Eur CE%sT 1945 Apr 2 2:00
- 1:00 Neth CE%sT 1977
- 1:00 EU CE%sT
- # Norway
- # http://met.no/met/met_lex/q_u/sommertid.html (2004-01) agrees with Shanks &
- # Pottenger.
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Norway 1916 only - May 22 1:00 1:00 S
- Rule Norway 1916 only - Sep 30 0:00 0 -
- Rule Norway 1945 only - Apr 2 2:00s 1:00 S
- Rule Norway 1945 only - Oct 1 2:00s 0 -
- Rule Norway 1959 1964 - Mar Sun>=15 2:00s 1:00 S
- Rule Norway 1959 1965 - Sep Sun>=15 2:00s 0 -
- Rule Norway 1965 only - Apr 25 2:00s 1:00 S
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Oslo 0:43:00 - LMT 1895 Jan 1
- 1:00 Norway CE%sT 1940 Aug 10 23:00
- 1:00 C-Eur CE%sT 1945 Apr 2 2:00
- 1:00 Norway CE%sT 1980
- 1:00 EU CE%sT
- # Svalbard & Jan Mayen
- # From Steffen Thorsen (2001-05-01):
- # Although I could not find it explicitly, it seems that Jan Mayen and
- # Svalbard have been using the same time as Norway at least since the
- # time they were declared as parts of Norway. Svalbard was declared
- # as a part of Norway by law of 1925-07-17 no 11, section 4 and Jan
- # Mayen by law of 1930-02-27 no 2, section 2. (From
- # http://www.lovdata.no/all/nl-19250717-011.html and
- # http://www.lovdata.no/all/nl-19300227-002.html). The law/regulation
- # for normal/standard time in Norway is from 1894-06-29 no 1 (came
- # into operation on 1895-01-01) and Svalbard/Jan Mayen seem to be a
- # part of this law since 1925/1930. (From
- # http://www.lovdata.no/all/nl-18940629-001.html ) I have not been
- # able to find if Jan Mayen used a different time zone (e.g. -0100)
- # before 1930. Jan Mayen has only been "inhabitated" since 1921 by
- # Norwegian meteorologists and maybe used the same time as Norway ever
- # since 1921. Svalbard (Arctic/Longyearbyen) has been inhabited since
- # before 1895, and therefore probably changed the local time somewhere
- # between 1895 and 1925 (inclusive).
- # From Paul Eggert (2001-05-01):
- #
- # Actually, Jan Mayen was never occupied by Germany during World War II,
- # so it must have diverged from Oslo time during the war, as Oslo was
- # keeping Berlin time.
- #
- # <http://home.no.net/janmayen/history.htm> says that the meteorologists
- # burned down their station in 1940 and left the island, but returned in
- # 1941 with a small Norwegian garrison and continued operations despite
- # frequent air ttacks from Germans. In 1943 the Americans established a
- # radiolocating station on the island, called "Atlantic City". Possibly
- # the UTC offset changed during the war, but I think it unlikely that
- # Jan Mayen used German daylight-saving rules.
- #
- # Svalbard is more complicated, as it was raided in August 1941 by an
- # Allied party that evacuated the civilian population to England (says
- # <http://www.bartleby.com/65/sv/Svalbard.html>). The Svalbard FAQ
- # <http://www.svalbard.com/SvalbardFAQ.html> says that the Germans were
- # expelled on 1942-05-14. However, small parties of Germans did return,
- # and according to Wilhelm Dege's book "War North of 80" (1954)
- # <http://www.ucalgary.ca/UofC/departments/UP/1-55238/1-55238-110-2.html>
- # the German armed forces at the Svalbard weather station code-named
- # Haudegen did not surrender to the Allies until September 1945.
- #
- # All these events predate our cutoff date of 1970. Unless we can
- # come up with more definitive info about the timekeeping during the
- # war years it's probably best just do...the following for now:
- Link Europe/Oslo Arctic/Longyearbyen
- # Poland
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Poland 1918 1919 - Sep 16 2:00s 0 -
- Rule Poland 1919 only - Apr 15 2:00s 1:00 S
- Rule Poland 1944 only - Apr 3 2:00s 1:00 S
- # Whitman gives 1944 Nov 30; go with Shanks & Pottenger.
- Rule Poland 1944 only - Oct 4 2:00 0 -
- # For 1944-1948 Whitman gives the previous day; go with Shanks & Pottenger.
- Rule Poland 1945 only - Apr 29 0:00 1:00 S
- Rule Poland 1945 only - Nov 1 0:00 0 -
- # For 1946 on the source is Kazimierz Borkowski,
- # Torun Center for Astronomy, Dept. of Radio Astronomy, Nicolaus Copernicus U.,
- # <http://www.astro.uni.torun.pl/~kb/Artykuly/U-PA/Czas2.htm#tth_tAb1>
- # Thanks to Przemyslaw Augustyniak (2005-05-28) for this reference.
- # He also gives these further references:
- # Mon Pol nr 13, poz 162 (1995) <http://www.abc.com.pl/serwis/mp/1995/0162.htm>
- # Druk nr 2180 (2003) <http://www.senat.gov.pl/k5/dok/sejm/053/2180.pdf>
- Rule Poland 1946 only - Apr 14 0:00s 1:00 S
- Rule Poland 1946 only - Oct 7 2:00s 0 -
- Rule Poland 1947 only - May 4 2:00s 1:00 S
- Rule Poland 1947 1949 - Oct Sun>=1 2:00s 0 -
- Rule Poland 1948 only - Apr 18 2:00s 1:00 S
- Rule Poland 1949 only - Apr 10 2:00s 1:00 S
- Rule Poland 1957 only - Jun 2 1:00s 1:00 S
- Rule Poland 1957 1958 - Sep lastSun 1:00s 0 -
- Rule Poland 1958 only - Mar 30 1:00s 1:00 S
- Rule Poland 1959 only - May 31 1:00s 1:00 S
- Rule Poland 1959 1961 - Oct Sun>=1 1:00s 0 -
- Rule Poland 1960 only - Apr 3 1:00s 1:00 S
- Rule Poland 1961 1964 - May lastSun 1:00s 1:00 S
- Rule Poland 1962 1964 - Sep lastSun 1:00s 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Warsaw 1:24:00 - LMT 1880
- 1:24:00 - WMT 1915 Aug 5 # Warsaw Mean Time
- 1:00 C-Eur CE%sT 1918 Sep 16 3:00
- 2:00 Poland EE%sT 1922 Jun
- 1:00 Poland CE%sT 1940 Jun 23 2:00
- 1:00 C-Eur CE%sT 1944 Oct
- 1:00 Poland CE%sT 1977
- 1:00 W-Eur CE%sT 1988
- 1:00 EU CE%sT
- # Portugal
- #
- # From Rui Pedro Salgueiro (1992-11-12):
- # Portugal has recently (September, 27) changed timezone
- # (from WET to MET or CET) to harmonize with EEC.
- #
- # Martin Bruckmann (1996-02-29) reports via Peter Ilieve
- # that Portugal is reverting to 0:00 by not moving its clocks this spring.
- # The new Prime Minister was fed up with getting up in the dark in the winter.
- #
- # From Paul Eggert (1996-11-12):
- # IATA SSIM (1991-09) reports several 1991-09 and 1992-09 transitions
- # at 02:00u, not 01:00u. Assume that these are typos.
- # IATA SSIM (1991/1992) reports that the Azores were at -1:00.
- # IATA SSIM (1993-02) says +0:00; later issues (through 1996-09) say -1:00.
- # Guess that the Azores changed to EU rules in 1992 (since that's when Portugal
- # harmonized with the EU), and that they stayed +0:00 that winter.
- #
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- # DSH writes that despite Decree 1,469 (1915), the change to the clocks was not
- # done every year, depending on what Spain did, because of railroad schedules.
- # Go with Shanks & Pottenger.
- Rule Port 1916 only - Jun 17 23:00 1:00 S
- # Whitman gives 1916 Oct 31; go with Shanks & Pottenger.
- Rule Port 1916 only - Nov 1 1:00 0 -
- Rule Port 1917 only - Feb 28 23:00s 1:00 S
- Rule Port 1917 1921 - Oct 14 23:00s 0 -
- Rule Port 1918 only - Mar 1 23:00s 1:00 S
- Rule Port 1919 only - Feb 28 23:00s 1:00 S
- Rule Port 1920 only - Feb 29 23:00s 1:00 S
- Rule Port 1921 only - Feb 28 23:00s 1:00 S
- Rule Port 1924 only - Apr 16 23:00s 1:00 S
- Rule Port 1924 only - Oct 14 23:00s 0 -
- Rule Port 1926 only - Apr 17 23:00s 1:00 S
- Rule Port 1926 1929 - Oct Sat>=1 23:00s 0 -
- Rule Port 1927 only - Apr 9 23:00s 1:00 S
- Rule Port 1928 only - Apr 14 23:00s 1:00 S
- Rule Port 1929 only - Apr 20 23:00s 1:00 S
- Rule Port 1931 only - Apr 18 23:00s 1:00 S
- # Whitman gives 1931 Oct 8; go with Shanks & Pottenger.
- Rule Port 1931 1932 - Oct Sat>=1 23:00s 0 -
- Rule Port 1932 only - Apr 2 23:00s 1:00 S
- Rule Port 1934 only - Apr 7 23:00s 1:00 S
- # Whitman gives 1934 Oct 5; go with Shanks & Pottenger.
- Rule Port 1934 1938 - Oct Sat>=1 23:00s 0 -
- # Shanks & Pottenger give 1935 Apr 30; go with Whitman.
- Rule Port 1935 only - Mar 30 23:00s 1:00 S
- Rule Port 1936 only - Apr 18 23:00s 1:00 S
- # Whitman gives 1937 Apr 2; go with Shanks & Pottenger.
- Rule Port 1937 only - Apr 3 23:00s 1:00 S
- Rule Port 1938 only - Mar 26 23:00s 1:00 S
- Rule Port 1939 only - Apr 15 23:00s 1:00 S
- # Whitman gives 1939 Oct 7; go with Shanks & Pottenger.
- Rule Port 1939 only - Nov 18 23:00s 0 -
- Rule Port 1940 only - Feb 24 23:00s 1:00 S
- # Shanks & Pottenger give 1940 Oct 7; go with Whitman.
- Rule Port 1940 1941 - Oct 5 23:00s 0 -
- Rule Port 1941 only - Apr 5 23:00s 1:00 S
- Rule Port 1942 1945 - Mar Sat>=8 23:00s 1:00 S
- Rule Port 1942 only - Apr 25 22:00s 2:00 M # Midsummer
- Rule Port 1942 only - Aug 15 22:00s 1:00 S
- Rule Port 1942 1945 - Oct Sat>=24 23:00s 0 -
- Rule Port 1943 only - Apr 17 22:00s 2:00 M
- Rule Port 1943 1945 - Aug Sat>=25 22:00s 1:00 S
- Rule Port 1944 1945 - Apr Sat>=21 22:00s 2:00 M
- Rule Port 1946 only - Apr Sat>=1 23:00s 1:00 S
- Rule Port 1946 only - Oct Sat>=1 23:00s 0 -
- Rule Port 1947 1949 - Apr Sun>=1 2:00s 1:00 S
- Rule Port 1947 1949 - Oct Sun>=1 2:00s 0 -
- # Shanks & Pottenger say DST was observed in 1950; go with Whitman.
- # Whitman gives Oct lastSun for 1952 on; go with Shanks & Pottenger.
- Rule Port 1951 1965 - Apr Sun>=1 2:00s 1:00 S
- Rule Port 1951 1965 - Oct Sun>=1 2:00s 0 -
- Rule Port 1977 only - Mar 27 0:00s 1:00 S
- Rule Port 1977 only - Sep 25 0:00s 0 -
- Rule Port 1978 1979 - Apr Sun>=1 0:00s 1:00 S
- Rule Port 1978 only - Oct 1 0:00s 0 -
- Rule Port 1979 1982 - Sep lastSun 1:00s 0 -
- Rule Port 1980 only - Mar lastSun 0:00s 1:00 S
- Rule Port 1981 1982 - Mar lastSun 1:00s 1:00 S
- Rule Port 1983 only - Mar lastSun 2:00s 1:00 S
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- # Shanks & Pottenger say the transition from LMT to WET occurred 1911-05-24;
- # Willett says 1912-01-01. Go with Willett.
- Zone Europe/Lisbon -0:36:32 - LMT 1884
- -0:36:32 - LMT 1912 Jan 1 # Lisbon Mean Time
- 0:00 Port WE%sT 1966 Apr 3 2:00
- 1:00 - CET 1976 Sep 26 1:00
- 0:00 Port WE%sT 1983 Sep 25 1:00s
- 0:00 W-Eur WE%sT 1992 Sep 27 1:00s
- 1:00 EU CE%sT 1996 Mar 31 1:00u
- 0:00 EU WE%sT
- Zone Atlantic/Azores -1:42:40 - LMT 1884 # Ponta Delgada
- -1:54:32 - HMT 1911 May 24 # Horta Mean Time
- -2:00 Port AZO%sT 1966 Apr 3 2:00 # Azores Time
- -1:00 Port AZO%sT 1983 Sep 25 1:00s
- -1:00 W-Eur AZO%sT 1992 Sep 27 1:00s
- 0:00 EU WE%sT 1993 Mar 28 1:00u
- -1:00 EU AZO%sT
- Zone Atlantic/Madeira -1:07:36 - LMT 1884 # Funchal
- -1:07:36 - FMT 1911 May 24 # Funchal Mean Time
- -1:00 Port MAD%sT 1966 Apr 3 2:00 # Madeira Time
- 0:00 Port WE%sT 1983 Sep 25 1:00s
- 0:00 EU WE%sT
- # Romania
- #
- # From Paul Eggert (1999-10-07):
- # <a href="http://www.nineoclock.ro/POL/1778pol.html">
- # Nine O'clock</a> (1998-10-23) reports that the switch occurred at
- # 04:00 local time in fall 1998. For lack of better info,
- # assume that Romania and Moldova switched to EU rules in 1997,
- # the same year as Bulgaria.
- #
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Romania 1932 only - May 21 0:00s 1:00 S
- Rule Romania 1932 1939 - Oct Sun>=1 0:00s 0 -
- Rule Romania 1933 1939 - Apr Sun>=2 0:00s 1:00 S
- Rule Romania 1979 only - May 27 0:00 1:00 S
- Rule Romania 1979 only - Sep lastSun 0:00 0 -
- Rule Romania 1980 only - Apr 5 23:00 1:00 S
- Rule Romania 1980 only - Sep lastSun 1:00 0 -
- Rule Romania 1991 1993 - Mar lastSun 0:00s 1:00 S
- Rule Romania 1991 1993 - Sep lastSun 0:00s 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct
- 1:44:24 - BMT 1931 Jul 24 # Bucharest MT
- 2:00 Romania EE%sT 1981 Mar 29 2:00s
- 2:00 C-Eur EE%sT 1991
- 2:00 Romania EE%sT 1994
- 2:00 E-Eur EE%sT 1997
- 2:00 EU EE%sT
- # Russia
- # From Paul Eggert (2006-03-22):
- # Except for Moscow after 1919-07-01, I invented the time zone abbreviations.
- # Moscow time zone abbreviations after 1919-07-01, and Moscow rules after 1991,
- # are from Andrey A. Chernov. The rest is from Shanks & Pottenger,
- # except we follow Chernov's report that 1992 DST transitions were Sat
- # 23:00, not Sun 02:00s.
- #
- # From Stanislaw A. Kuzikowski (1994-06-29):
- # But now it is some months since Novosibirsk is 3 hours ahead of Moscow!
- # I do not know why they have decided to make this change;
- # as far as I remember it was done exactly during winter->summer switching
- # so we (Novosibirsk) simply did not switch.
- #
- # From Andrey A. Chernov (1996-10-04):
- # `MSK' and `MSD' were born and used initially on Moscow computers with
- # UNIX-like OSes by several developer groups (e.g. Demos group, Kiae group)....
- # The next step was the UUCP network, the Relcom predecessor
- # (used mainly for mail), and MSK/MSD was actively used there.
- #
- # From Chris Carrier (1996-10-30):
- # According to a friend of mine who rode the Trans-Siberian Railroad from
- # Moscow to Irkutsk in 1995, public air and rail transport in Russia ...
- # still follows Moscow time, no matter where in Russia it is located.
- #
- # For Grozny, Chechnya, we have the following story from
- # John Daniszewski, "Scavengers in the Rubble", Los Angeles Times (2001-02-07):
- # News--often false--is spread by word of mouth. A rumor that it was
- # time to move the clocks back put this whole city out of sync with
- # the rest of Russia for two weeks--even soldiers stationed here began
- # enforcing curfew at the wrong time.
- #
- # From Gwillim Law (2001-06-05):
- # There's considerable evidence that Sakhalin Island used to be in
- # UTC+11, and has changed to UTC+10, in this decade. I start with the
- # SSIM, which listed Yuzhno-Sakhalinsk in zone RU10 along with Magadan
- # until February 1997, and then in RU9 with Khabarovsk and Vladivostok
- # since September 1997.... Although the Kuril Islands are
- # administratively part of Sakhalin oblast', they appear to have
- # remained on UTC+11 along with Magadan.
- #
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- #
- # Kaliningradskaya oblast'.
- Zone Europe/Kaliningrad 1:22:00 - LMT 1893 Apr
- 1:00 C-Eur CE%sT 1945
- 2:00 Poland CE%sT 1946
- 3:00 Russia MSK/MSD 1991 Mar 31 2:00s
- 2:00 Russia EE%sT 2011 Mar 27 2:00s
- 3:00 - FET # Further-eastern European Time
- #
- # From Oscar van Vlijmen (2001-08-25): [This region consists of]
- # Respublika Adygeya, Arkhangel'skaya oblast',
- # Belgorodskaya oblast', Bryanskaya oblast', Vladimirskaya oblast',
- # Vologodskaya oblast', Voronezhskaya oblast',
- # Respublika Dagestan, Ivanovskaya oblast', Respublika Ingushetiya,
- # Kabarbino-Balkarskaya Respublika, Respublika Kalmykiya,
- # Kalyzhskaya oblast', Respublika Karachaevo-Cherkessiya,
- # Respublika Kareliya, Respublika Komi,
- # Kostromskaya oblast', Krasnodarskij kraj, Kurskaya oblast',
- # Leningradskaya oblast', Lipetskaya oblast', Respublika Marij El,
- # Respublika Mordoviya, Moskva, Moskovskaya oblast',
- # Murmanskaya oblast', Nenetskij avtonomnyj okrug,
- # Nizhegorodskaya oblast', Novgorodskaya oblast', Orlovskaya oblast',
- # Penzenskaya oblast', Pskovskaya oblast', Rostovskaya oblast',
- # Ryazanskaya oblast', Sankt-Peterburg,
- # Respublika Severnaya Osetiya, Smolenskaya oblast',
- # Stavropol'skij kraj, Tambovskaya oblast', Respublika Tatarstan,
- # Tverskaya oblast', Tyl'skaya oblast', Ul'yanovskaya oblast',
- # Chechenskaya Respublika, Chuvashskaya oblast',
- # Yaroslavskaya oblast'
- Zone Europe/Moscow 2:30:20 - LMT 1880
- 2:30 - MMT 1916 Jul 3 # Moscow Mean Time
- 2:30:48 Russia %s 1919 Jul 1 2:00
- 3:00 Russia MSK/MSD 1922 Oct
- 2:00 - EET 1930 Jun 21
- 3:00 Russia MSK/MSD 1991 Mar 31 2:00s
- 2:00 Russia EE%sT 1992 Jan 19 2:00s
- 3:00 Russia MSK/MSD 2011 Mar 27 2:00s
- 4:00 - MSK
- #
- # Astrakhanskaya oblast', Kirovskaya oblast', Saratovskaya oblast',
- # Volgogradskaya oblast'. Shanks & Pottenger say Kirov is still at +0400
- # but Wikipedia (2006-05-09) says +0300. Perhaps it switched after the
- # others? But we have no data.
- Zone Europe/Volgograd 2:57:40 - LMT 1920 Jan 3
- 3:00 - TSAT 1925 Apr 6 # Tsaritsyn Time
- 3:00 - STAT 1930 Jun 21 # Stalingrad Time
- 4:00 - STAT 1961 Nov 11
- 4:00 Russia VOL%sT 1989 Mar 26 2:00s # Volgograd T
- 3:00 Russia VOL%sT 1991 Mar 31 2:00s
- 4:00 - VOLT 1992 Mar 29 2:00s
- 3:00 Russia VOL%sT 2011 Mar 27 2:00s
- 4:00 - VOLT
- #
- # From Oscar van Vlijmen (2001-08-25): [This region consists of]
- # Samarskaya oblast', Udmyrtskaya respublika
- Zone Europe/Samara 3:20:36 - LMT 1919 Jul 1 2:00
- 3:00 - SAMT 1930 Jun 21
- 4:00 - SAMT 1935 Jan 27
- 4:00 Russia KUY%sT 1989 Mar 26 2:00s # Kuybyshev
- 3:00 Russia KUY%sT 1991 Mar 31 2:00s
- 2:00 Russia KUY%sT 1991 Sep 29 2:00s
- 3:00 - KUYT 1991 Oct 20 3:00
- 4:00 Russia SAM%sT 2010 Mar 28 2:00s # Samara Time
- 3:00 Russia SAM%sT 2011 Mar 27 2:00s
- 4:00 - SAMT
- #
- # From Oscar van Vlijmen (2001-08-25): [This region consists of]
- # Respublika Bashkortostan, Komi-Permyatskij avtonomnyj okrug,
- # Kurganskaya oblast', Orenburgskaya oblast', Permskaya oblast',
- # Sverdlovskaya oblast', Tyumenskaya oblast',
- # Khanty-Manskijskij avtonomnyj okrug, Chelyabinskaya oblast',
- # Yamalo-Nenetskij avtonomnyj okrug.
- Zone Asia/Yekaterinburg 4:02:24 - LMT 1919 Jul 15 4:00
- 4:00 - SVET 1930 Jun 21 # Sverdlovsk Time
- 5:00 Russia SVE%sT 1991 Mar 31 2:00s
- 4:00 Russia SVE%sT 1992 Jan 19 2:00s
- 5:00 Russia YEK%sT 2011 Mar 27 2:00s
- 6:00 - YEKT # Yekaterinburg Time
- #
- # From Oscar van Vlijmen (2001-08-25): [This region consists of]
- # Respublika Altaj, Altajskij kraj, Omskaya oblast'.
- Zone Asia/Omsk 4:53:36 - LMT 1919 Nov 14
- 5:00 - OMST 1930 Jun 21 # Omsk TIme
- 6:00 Russia OMS%sT 1991 Mar 31 2:00s
- 5:00 Russia OMS%sT 1992 Jan 19 2:00s
- 6:00 Russia OMS%sT 2011 Mar 27 2:00s
- 7:00 - OMST
- #
- # From Paul Eggert (2006-08-19): I'm guessing about Tomsk here; it's
- # not clear when it switched from +7 to +6.
- # Novosibirskaya oblast', Tomskaya oblast'.
- Zone Asia/Novosibirsk 5:31:40 - LMT 1919 Dec 14 6:00
- 6:00 - NOVT 1930 Jun 21 # Novosibirsk Time
- 7:00 Russia NOV%sT 1991 Mar 31 2:00s
- 6:00 Russia NOV%sT 1992 Jan 19 2:00s
- 7:00 Russia NOV%sT 1993 May 23 # say Shanks & P.
- 6:00 Russia NOV%sT 2011 Mar 27 2:00s
- 7:00 - NOVT
- # From Alexander Krivenyshev (2009-10-13):
- # Kemerovo oblast' (Kemerovo region) in Russia will change current time zone on
- # March 28, 2010:
- # from current Russia Zone 6 - Krasnoyarsk Time Zone (KRA) UTC +0700
- # to Russia Zone 5 - Novosibirsk Time Zone (NOV) UTC +0600
- #
- # This is according to Government of Russia decree # 740, on September
- # 14, 2009 "Application in the territory of the Kemerovo region the Fifth
- # time zone." ("Russia Zone 5" or old "USSR Zone 5" is GMT +0600)
- #
- # Russian Government web site (Russian language)
- # <a href="http://www.government.ru/content/governmentactivity/rfgovernmentdecisions/archiv">
- # http://www.government.ru/content/governmentactivity/rfgovernmentdecisions/archive/2009/09/14/991633.htm
- # </a>
- # or Russian-English translation by WorldTimeZone.com with reference
- # map to local region and new Russia Time Zone map after March 28, 2010
- # <a href="http://www.worldtimezone.com/dst_news/dst_news_russia03.html">
- # http://www.worldtimezone.com/dst_news/dst_news_russia03.html
- # </a>
- #
- # Thus, when Russia will switch to DST on the night of March 28, 2010
- # Kemerovo region (Kemerovo oblast') will not change the clock.
- #
- # As a result, Kemerovo oblast' will be in the same time zone as
- # Novosibirsk, Omsk, Tomsk, Barnaul and Altai Republic.
- Zone Asia/Novokuznetsk 5:48:48 - NMT 1920 Jan 6
- 6:00 - KRAT 1930 Jun 21 # Krasnoyarsk Time
- 7:00 Russia KRA%sT 1991 Mar 31 2:00s
- 6:00 Russia KRA%sT 1992 Jan 19 2:00s
- 7:00 Russia KRA%sT 2010 Mar 28 2:00s
- 6:00 Russia NOV%sT 2011 Mar 27 2:00s
- 7:00 - NOVT # Novosibirsk/Novokuznetsk Time
- #
- # From Oscar van Vlijmen (2001-08-25): [This region consists of]
- # Krasnoyarskij kraj,
- # Tajmyrskij (Dolgano-Nenetskij) avtonomnyj okrug,
- # Respublika Tuva, Respublika Khakasiya, Evenkijskij avtonomnyj okrug.
- Zone Asia/Krasnoyarsk 6:11:20 - LMT 1920 Jan 6
- 6:00 - KRAT 1930 Jun 21 # Krasnoyarsk Time
- 7:00 Russia KRA%sT 1991 Mar 31 2:00s
- 6:00 Russia KRA%sT 1992 Jan 19 2:00s
- 7:00 Russia KRA%sT 2011 Mar 27 2:00s
- 8:00 - KRAT
- #
- # From Oscar van Vlijmen (2001-08-25): [This region consists of]
- # Respublika Buryatiya, Irkutskaya oblast',
- # Ust'-Ordynskij Buryatskij avtonomnyj okrug.
- Zone Asia/Irkutsk 6:57:20 - LMT 1880
- 6:57:20 - IMT 1920 Jan 25 # Irkutsk Mean Time
- 7:00 - IRKT 1930 Jun 21 # Irkutsk Time
- 8:00 Russia IRK%sT 1991 Mar 31 2:00s
- 7:00 Russia IRK%sT 1992 Jan 19 2:00s
- 8:00 Russia IRK%sT 2011 Mar 27 2:00s
- 9:00 - IRKT
- #
- # From Oscar van Vlijmen (2003-10-18): [This region consists of]
- # Aginskij Buryatskij avtonomnyj okrug, Amurskaya oblast',
- # [parts of] Respublika Sakha (Yakutiya), Chitinskaya oblast'.
- # From Oscar van Vlijmen (2009-11-29):
- # ...some regions of [Russia] were merged with others since 2005...
- # Some names were changed, no big deal, except for one instance: a new name.
- # YAK/YAKST: UTC+9 Zabajkal'skij kraj.
- # From Oscar van Vlijmen (2009-11-29):
- # The Sakha districts are: Aldanskij, Amginskij, Anabarskij,
- # Verkhnevilyujskij, Vilyujskij, Gornyj,
- # Zhiganskij, Kobyajskij, Lenskij, Megino-Kangalasskij, Mirninskij,
- # Namskij, Nyurbinskij, Olenyokskij, Olyokminskij,
- # Suntarskij, Tattinskij, Ust'-Aldanskij, Khangalasskij,
- # Churapchinskij, Eveno-Bytantajskij Natsional'nij.
- Zone Asia/Yakutsk 8:38:40 - LMT 1919 Dec 15
- 8:00 - YAKT 1930 Jun 21 # Yakutsk Time
- 9:00 Russia YAK%sT 1991 Mar 31 2:00s
- 8:00 Russia YAK%sT 1992 Jan 19 2:00s
- 9:00 Russia YAK%sT 2011 Mar 27 2:00s
- 10:00 - YAKT
- #
- # From Oscar van Vlijmen (2003-10-18): [This region consists of]
- # Evrejskaya avtonomnaya oblast', Khabarovskij kraj, Primorskij kraj,
- # [parts of] Respublika Sakha (Yakutiya).
- # From Oscar van Vlijmen (2009-11-29):
- # The Sakha districts are: Bulunskij, Verkhoyanskij, Tomponskij, Ust'-Majskij,
- # Ust'-Yanskij.
- Zone Asia/Vladivostok 8:47:44 - LMT 1922 Nov 15
- 9:00 - VLAT 1930 Jun 21 # Vladivostok Time
- 10:00 Russia VLA%sT 1991 Mar 31 2:00s
- 9:00 Russia VLA%sST 1992 Jan 19 2:00s
- 10:00 Russia VLA%sT 2011 Mar 27 2:00s
- 11:00 - VLAT
- #
- # Sakhalinskaya oblast'.
- # The Zone name should be Yuzhno-Sakhalinsk, but that's too long.
- Zone Asia/Sakhalin 9:30:48 - LMT 1905 Aug 23
- 9:00 - CJT 1938
- 9:00 - JST 1945 Aug 25
- 11:00 Russia SAK%sT 1991 Mar 31 2:00s # Sakhalin T.
- 10:00 Russia SAK%sT 1992 Jan 19 2:00s
- 11:00 Russia SAK%sT 1997 Mar lastSun 2:00s
- 10:00 Russia SAK%sT 2011 Mar 27 2:00s
- 11:00 - SAKT
- #
- # From Oscar van Vlijmen (2003-10-18): [This region consists of]
- # Magadanskaya oblast', Respublika Sakha (Yakutiya).
- # Probably also: Kuril Islands.
- # From Oscar van Vlijmen (2009-11-29):
- # The Sakha districts are: Abyjskij, Allaikhovskij, Verkhhhnekolymskij, Momskij,
- # Nizhnekolymskij, Ojmyakonskij, Srednekolymskij.
- Zone Asia/Magadan 10:03:12 - LMT 1924 May 2
- 10:00 - MAGT 1930 Jun 21 # Magadan Time
- 11:00 Russia MAG%sT 1991 Mar 31 2:00s
- 10:00 Russia MAG%sT 1992 Jan 19 2:00s
- 11:00 Russia MAG%sT 2011 Mar 27 2:00s
- 12:00 - MAGT
- #
- # From Oscar van Vlijmen (2001-08-25): [This region consists of]
- # Kamchatskaya oblast', Koryakskij avtonomnyj okrug.
- #
- # The Zone name should be Asia/Petropavlovsk-Kamchatski, but that's too long.
- Zone Asia/Kamchatka 10:34:36 - LMT 1922 Nov 10
- 11:00 - PETT 1930 Jun 21 # P-K Time
- 12:00 Russia PET%sT 1991 Mar 31 2:00s
- 11:00 Russia PET%sT 1992 Jan 19 2:00s
- 12:00 Russia PET%sT 2010 Mar 28 2:00s
- 11:00 Russia PET%sT 2011 Mar 27 2:00s
- 12:00 - PETT
- #
- # Chukotskij avtonomnyj okrug
- Zone Asia/Anadyr 11:49:56 - LMT 1924 May 2
- 12:00 - ANAT 1930 Jun 21 # Anadyr Time
- 13:00 Russia ANA%sT 1982 Apr 1 0:00s
- 12:00 Russia ANA%sT 1991 Mar 31 2:00s
- 11:00 Russia ANA%sT 1992 Jan 19 2:00s
- 12:00 Russia ANA%sT 2010 Mar 28 2:00s
- 11:00 Russia ANA%sT 2011 Mar 27 2:00s
- 12:00 - ANAT
- # Serbia
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Belgrade 1:22:00 - LMT 1884
- 1:00 - CET 1941 Apr 18 23:00
- 1:00 C-Eur CE%sT 1945
- 1:00 - CET 1945 May 8 2:00s
- 1:00 1:00 CEST 1945 Sep 16 2:00s
- # Metod Kozelj reports that the legal date of
- # transition to EU rules was 1982-11-27, for all of Yugoslavia at the time.
- # Shanks & Pottenger don't give as much detail, so go with Kozelj.
- 1:00 - CET 1982 Nov 27
- 1:00 EU CE%sT
- Link Europe/Belgrade Europe/Ljubljana # Slovenia
- Link Europe/Belgrade Europe/Podgorica # Montenegro
- Link Europe/Belgrade Europe/Sarajevo # Bosnia and Herzegovina
- Link Europe/Belgrade Europe/Skopje # Macedonia
- Link Europe/Belgrade Europe/Zagreb # Croatia
- # Slovakia
- Link Europe/Prague Europe/Bratislava
- # Slovenia
- # see Serbia
- # Spain
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- # For 1917-1919 Whitman gives Apr Sat>=1 - Oct Sat>=1;
- # go with Shanks & Pottenger.
- Rule Spain 1917 only - May 5 23:00s 1:00 S
- Rule Spain 1917 1919 - Oct 6 23:00s 0 -
- Rule Spain 1918 only - Apr 15 23:00s 1:00 S
- Rule Spain 1919 only - Apr 5 23:00s 1:00 S
- # Whitman gives 1921 Feb 28 - Oct 14; go with Shanks & Pottenger.
- Rule Spain 1924 only - Apr 16 23:00s 1:00 S
- # Whitman gives 1924 Oct 14; go with Shanks & Pottenger.
- Rule Spain 1924 only - Oct 4 23:00s 0 -
- Rule Spain 1926 only - Apr 17 23:00s 1:00 S
- # Whitman says no DST in 1929; go with Shanks & Pottenger.
- Rule Spain 1926 1929 - Oct Sat>=1 23:00s 0 -
- Rule Spain 1927 only - Apr 9 23:00s 1:00 S
- Rule Spain 1928 only - Apr 14 23:00s 1:00 S
- Rule Spain 1929 only - Apr 20 23:00s 1:00 S
- # Whitman gives 1937 Jun 16, 1938 Apr 16, 1940 Apr 13;
- # go with Shanks & Pottenger.
- Rule Spain 1937 only - May 22 23:00s 1:00 S
- Rule Spain 1937 1939 - Oct Sat>=1 23:00s 0 -
- Rule Spain 1938 only - Mar 22 23:00s 1:00 S
- Rule Spain 1939 only - Apr 15 23:00s 1:00 S
- Rule Spain 1940 only - Mar 16 23:00s 1:00 S
- # Whitman says no DST 1942-1945; go with Shanks & Pottenger.
- Rule Spain 1942 only - May 2 22:00s 2:00 M # Midsummer
- Rule Spain 1942 only - Sep 1 22:00s 1:00 S
- Rule Spain 1943 1946 - Apr Sat>=13 22:00s 2:00 M
- Rule Spain 1943 only - Oct 3 22:00s 1:00 S
- Rule Spain 1944 only - Oct 10 22:00s 1:00 S
- Rule Spain 1945 only - Sep 30 1:00 1:00 S
- Rule Spain 1946 only - Sep 30 0:00 0 -
- Rule Spain 1949 only - Apr 30 23:00 1:00 S
- Rule Spain 1949 only - Sep 30 1:00 0 -
- Rule Spain 1974 1975 - Apr Sat>=13 23:00 1:00 S
- Rule Spain 1974 1975 - Oct Sun>=1 1:00 0 -
- Rule Spain 1976 only - Mar 27 23:00 1:00 S
- Rule Spain 1976 1977 - Sep lastSun 1:00 0 -
- Rule Spain 1977 1978 - Apr 2 23:00 1:00 S
- Rule Spain 1978 only - Oct 1 1:00 0 -
- # The following rules are copied from Morocco from 1967 through 1978.
- Rule SpainAfrica 1967 only - Jun 3 12:00 1:00 S
- Rule SpainAfrica 1967 only - Oct 1 0:00 0 -
- Rule SpainAfrica 1974 only - Jun 24 0:00 1:00 S
- Rule SpainAfrica 1974 only - Sep 1 0:00 0 -
- Rule SpainAfrica 1976 1977 - May 1 0:00 1:00 S
- Rule SpainAfrica 1976 only - Aug 1 0:00 0 -
- Rule SpainAfrica 1977 only - Sep 28 0:00 0 -
- Rule SpainAfrica 1978 only - Jun 1 0:00 1:00 S
- Rule SpainAfrica 1978 only - Aug 4 0:00 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Madrid -0:14:44 - LMT 1901 Jan 1 0:00s
- 0:00 Spain WE%sT 1946 Sep 30
- 1:00 Spain CE%sT 1979
- 1:00 EU CE%sT
- Zone Africa/Ceuta -0:21:16 - LMT 1901
- 0:00 - WET 1918 May 6 23:00
- 0:00 1:00 WEST 1918 Oct 7 23:00
- 0:00 - WET 1924
- 0:00 Spain WE%sT 1929
- 0:00 SpainAfrica WE%sT 1984 Mar 16
- 1:00 - CET 1986
- 1:00 EU CE%sT
- Zone Atlantic/Canary -1:01:36 - LMT 1922 Mar # Las Palmas de Gran C.
- -1:00 - CANT 1946 Sep 30 1:00 # Canaries Time
- 0:00 - WET 1980 Apr 6 0:00s
- 0:00 1:00 WEST 1980 Sep 28 0:00s
- 0:00 EU WE%sT
- # IATA SSIM (1996-09) says the Canaries switch at 2:00u, not 1:00u.
- # Ignore this for now, as the Canaries are part of the EU.
- # Sweden
- # From Ivan Nilsson (2001-04-13), superseding Shanks & Pottenger:
- #
- # The law "Svensk forfattningssamling 1878, no 14" about standard time in 1879:
- # From the beginning of 1879 (that is 01-01 00:00) the time for all
- # places in the country is "the mean solar time for the meridian at
- # three degrees, or twelve minutes of time, to the west of the
- # meridian of the Observatory of Stockholm". The law is dated 1878-05-31.
- #
- # The observatory at that time had the meridian 18 degrees 03' 30"
- # eastern longitude = 01:12:14 in time. Less 12 minutes gives the
- # national standard time as 01:00:14 ahead of GMT....
- #
- # About the beginning of CET in Sweden. The lawtext ("Svensk
- # forfattningssamling 1899, no 44") states, that "from the beginning
- # of 1900... ... the same as the mean solar time for the meridian at
- # the distance of one hour of time from the meridian of the English
- # observatory at Greenwich, or at 12 minutes 14 seconds to the west
- # from the meridian of the Observatory of Stockholm". The law is dated
- # 1899-06-16. In short: At 1900-01-01 00:00:00 the new standard time
- # in Sweden is 01:00:00 ahead of GMT.
- #
- # 1916: The lawtext ("Svensk forfattningssamling 1916, no 124") states
- # that "1916-05-15 is considered to begin one hour earlier". It is
- # pretty obvious that at 05-14 23:00 the clocks are set to 05-15 00:00....
- # Further the law says, that "1916-09-30 is considered to end one hour later".
- #
- # The laws regulating [DST] are available on the site of the Swedish
- # Parliament beginning with 1985 - the laws regulating 1980/1984 are
- # not available on the site (to my knowledge they are only available
- # in Swedish): <http://www.riksdagen.se/english/work/sfst.asp> (type
- # "sommartid" without the quotes in the field "Fritext" and then click
- # the Sok-button).
- #
- # (2001-05-13):
- #
- # I have now found a newspaper stating that at 1916-10-01 01:00
- # summertime the church-clocks etc were set back one hour to show
- # 1916-10-01 00:00 standard time. The article also reports that some
- # people thought the switch to standard time would take place already
- # at 1916-10-01 00:00 summer time, but they had to wait for another
- # hour before the event took place.
- #
- # Source: The newspaper "Dagens Nyheter", 1916-10-01, page 7 upper left.
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Stockholm 1:12:12 - LMT 1879 Jan 1
- 1:00:14 - SET 1900 Jan 1 # Swedish Time
- 1:00 - CET 1916 May 14 23:00
- 1:00 1:00 CEST 1916 Oct 1 01:00
- 1:00 - CET 1980
- 1:00 EU CE%sT
- # Switzerland
- # From Howse:
- # By the end of the 18th century clocks and watches became commonplace
- # and their performance improved enormously. Communities began to keep
- # mean time in preference to apparent time -- Geneva from 1780 ....
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- # From Whitman (who writes ``Midnight?''):
- # Rule Swiss 1940 only - Nov 2 0:00 1:00 S
- # Rule Swiss 1940 only - Dec 31 0:00 0 -
- # From Shanks & Pottenger:
- # Rule Swiss 1941 1942 - May Sun>=1 2:00 1:00 S
- # Rule Swiss 1941 1942 - Oct Sun>=1 0:00 0 -
- # From Alois Treindl (2008-12-17):
- # I have researched the DST usage in Switzerland during the 1940ies.
- #
- # As I wrote in an earlier message, I suspected the current tzdata values
- # to be wrong. This is now verified.
- #
- # I have found copies of the original ruling by the Swiss Federal
- # government, in 'Eidgen[o]ssische Gesetzessammlung 1941 and 1942' (Swiss
- # federal law collection)...
- #
- # DST began on Monday 5 May 1941, 1:00 am by shifting the clocks to 2:00 am
- # DST ended on Monday 6 Oct 1941, 2:00 am by shifting the clocks to 1:00 am.
- #
- # DST began on Monday, 4 May 1942 at 01:00 am
- # DST ended on Monday, 5 Oct 1942 at 02:00 am
- #
- # There was no DST in 1940, I have checked the law collection carefully.
- # It is also indicated by the fact that the 1942 entry in the law
- # collection points back to 1941 as a reference, but no reference to any
- # other years are made.
- #
- # Newspaper articles I have read in the archives on 6 May 1941 reported
- # about the introduction of DST (Sommerzeit in German) during the previous
- # night as an absolute novelty, because this was the first time that such
- # a thing had happened in Switzerland.
- #
- # I have also checked 1916, because one book source (Gabriel, Traite de
- # l'heure dans le monde) claims that Switzerland had DST in 1916. This is
- # false, no official document could be found. Probably Gabriel got misled
- # by references to Germany, which introduced DST in 1916 for the first time.
- #
- # The tzdata rules for Switzerland must be changed to:
- # Rule Swiss 1941 1942 - May Mon>=1 1:00 1:00 S
- # Rule Swiss 1941 1942 - Oct Mon>=1 2:00 0 -
- #
- # The 1940 rules must be deleted.
- #
- # One further detail for Switzerland, which is probably out of scope for
- # most users of tzdata:
- # The zone file
- # Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12
- # 0:29:44 - BMT 1894 Jun #Bern Mean Time
- # 1:00 Swiss CE%sT 1981
- # 1:00 EU CE%sT
- # describes all of Switzerland correctly, with the exception of
- # the Cantone Geneve (Geneva, Genf). Between 1848 and 1894 Geneve did not
- # follow Bern Mean Time but kept its own local mean time.
- # To represent this, an extra zone would be needed.
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Swiss 1941 1942 - May Mon>=1 1:00 1:00 S
- Rule Swiss 1941 1942 - Oct Mon>=1 2:00 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12
- 0:29:44 - BMT 1894 Jun # Bern Mean Time
- 1:00 Swiss CE%sT 1981
- 1:00 EU CE%sT
- # Turkey
- # From Amar Devegowda (2007-01-03):
- # The time zone rules for Istanbul, Turkey have not been changed for years now.
- # ... The latest rules are available at -
- # http://www.timeanddate.com/worldclock/timezone.html?n=107
- # From Steffen Thorsen (2007-01-03):
- # I have been able to find press records back to 1996 which all say that
- # DST started 01:00 local time and end at 02:00 local time. I am not sure
- # what happened before that. One example for each year from 1996 to 2001:
- # http://newspot.byegm.gov.tr/arsiv/1996/21/N4.htm
- # http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING97/03/97X03X25.TXT
- # http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING98/03/98X03X02.HTM
- # http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING99/10/99X10X26.HTM#%2016
- # http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING2000/03/00X03X06.HTM#%2021
- # http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING2001/03/23x03x01.HTM#%2027
- # From Paul Eggert (2007-01-03):
- # Prefer the above source to Shanks & Pottenger for time stamps after 1990.
- # From Steffen Thorsen (2007-03-09):
- # Starting 2007 though, it seems that they are adopting EU's 1:00 UTC
- # start/end time, according to the following page (2007-03-07):
- # http://www.ntvmsnbc.com/news/402029.asp
- # The official document is located here - it is in Turkish...:
- # http://rega.basbakanlik.gov.tr/eskiler/2007/03/20070307-7.htm
- # I was able to locate the following seemingly official document
- # (on a non-government server though) describing dates between 2002 and 2006:
- # http://www.alomaliye.com/bkk_2002_3769.htm
- # From Gökdeniz Karadağ (2011-03-10):
- #
- # According to the articles linked below, Turkey will change into summer
- # time zone (GMT+3) on March 28, 2011 at 3:00 a.m. instead of March 27.
- # This change is due to a nationwide exam on 27th.
- #
- # <a href="http://www.worldbulletin.net/?aType=haber&ArticleID=70872">
- # http://www.worldbulletin.net/?aType=haber&ArticleID=70872
- # </a>
- # Turkish:
- # <a href="http://www.hurriyet.com.tr/ekonomi/17230464.asp?gid=373">
- # http://www.hurriyet.com.tr/ekonomi/17230464.asp?gid=373
- # </a>
- # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
- Rule Turkey 1916 only - May 1 0:00 1:00 S
- Rule Turkey 1916 only - Oct 1 0:00 0 -
- Rule Turkey 1920 only - Mar 28 0:00 1:00 S
- Rule Turkey 1920 only - Oct 25 0:00 0 -
- Rule Turkey 1921 only - Apr 3 0:00 1:00 S
- Rule Turkey 1921 only - Oct 3 0:00 0 -
- Rule Turkey 1922 only - Mar 26 0:00 1:00 S
- Rule Turkey 1922 only - Oct 8 0:00 0 -
- # Whitman gives 1923 Apr 28 - Sep 16 and no DST in 1924-1925;
- # go with Shanks & Pottenger.
- Rule Turkey 1924 only - May 13 0:00 1:00 S
- Rule Turkey 1924 1925 - Oct 1 0:00 0 -
- Rule Turkey 1925 only - May 1 0:00 1:00 S
- Rule Turkey 1940 only - Jun 30 0:00 1:00 S
- Rule Turkey 1940 only - Oct 5 0:00 0 -
- Rule Turkey 1940 only - Dec 1 0:00 1:00 S
- Rule Turkey 1941 only - Sep 21 0:00 0 -
- Rule Turkey 1942 only - Apr 1 0:00 1:00 S
- # Whitman omits the next two transition and gives 1945 Oct 1;
- # go with Shanks & Pottenger.
- Rule Turkey 1942 only - Nov 1 0:00 0 -
- Rule Turkey 1945 only - Apr 2 0:00 1:00 S
- Rule Turkey 1945 only - Oct 8 0:00 0 -
- Rule Turkey 1946 only - Jun 1 0:00 1:00 S
- Rule Turkey 1946 only - Oct 1 0:00 0 -
- Rule Turkey 1947 1948 - Apr Sun>=16 0:00 1:00 S
- Rule Turkey 1947 1950 - Oct Sun>=2 0:00 0 -
- Rule Turkey 1949 only - Apr 10 0:00 1:00 S
- Rule Turkey 1950 only - Apr 19 0:00 1:00 S
- Rule Turkey 1951 only - Apr 22 0:00 1:00 S
- Rule Turkey 1951 only - Oct 8 0:00 0 -
- Rule Turkey 1962 only - Jul 15 0:00 1:00 S
- Rule Turkey 1962 only - Oct 8 0:00 0 -
- Rule Turkey 1964 only - May 15 0:00 1:00 S
- Rule Turkey 1964 only - Oct 1 0:00 0 -
- Rule Turkey 1970 1972 - May Sun>=2 0:00 1:00 S
- Rule Turkey 1970 1972 - Oct Sun>=2 0:00 0 -
- Rule Turkey 1973 only - Jun 3 1:00 1:00 S
- Rule Turkey 1973 only - Nov 4 3:00 0 -
- Rule Turkey 1974 only - Mar 31 2:00 1:00 S
- Rule Turkey 1974 only - Nov 3 5:00 0 -
- Rule Turkey 1975 only - Mar 30 0:00 1:00 S
- Rule Turkey 1975 1976 - Oct lastSun 0:00 0 -
- Rule Turkey 1976 only - Jun 1 0:00 1:00 S
- Rule Turkey 1977 1978 - Apr Sun>=1 0:00 1:00 S
- Rule Turkey 1977 only - Oct 16 0:00 0 -
- Rule Turkey 1979 1980 - Apr Sun>=1 3:00 1:00 S
- Rule Turkey 1979 1982 - Oct Mon>=11 0:00 0 -
- Rule Turkey 1981 1982 - Mar lastSun 3:00 1:00 S
- Rule Turkey 1983 only - Jul 31 0:00 1:00 S
- Rule Turkey 1983 only - Oct 2 0:00 0 -
- Rule Turkey 1985 only - Apr 20 0:00 1:00 S
- Rule Turkey 1985 only - Sep 28 0:00 0 -
- Rule Turkey 1986 1990 - Mar lastSun 2:00s 1:00 S
- Rule Turkey 1986 1990 - Sep lastSun 2:00s 0 -
- Rule Turkey 1991 2006 - Mar lastSun 1:00s 1:00 S
- Rule Turkey 1991 1995 - Sep lastSun 1:00s 0 -
- Rule Turkey 1996 2006 - Oct lastSun 1:00s 0 -
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- Zone Europe/Istanbul 1:55:52 - LMT 1880
- 1:56:56 - IMT 1910 Oct # Istanbul Mean Time?
- 2:00 Turkey EE%sT 1978 Oct 15
- 3:00 Turkey TR%sT 1985 Apr 20 # Turkey Time
- 2:00 Turkey EE%sT 2007
- 2:00 EU EE%sT 2011 Mar 27 1:00u
- 2:00 - EET 2011 Mar 28 1:00u
- 2:00 EU EE%sT
- Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents.
- # Ukraine
- #
- # From Igor Karpov, who works for the Ukranian Ministry of Justice,
- # via Garrett Wollman (2003-01-27):
- # BTW, I've found the official document on this matter. It's goverment
- # regulations number 509, May 13, 1996. In my poor translation it says:
- # "Time in Ukraine is set to second timezone (Kiev time). Each last Sunday
- # of March at 3am the time is changing to 4am and each last Sunday of
- # October the time at 4am is changing to 3am"
- # From Alexander Krivenyshev (2011-09-20):
- # On September 20, 2011 the deputies of the Verkhovna Rada agreed to
- # abolish the transfer clock to winter time.
- #
- # Bill number 8330 of MP from the Party of Regions Oleg Nadoshi got
- # approval from 266 deputies.
- #
- # Ukraine abolishes transter back to the winter time (in Russian)
- # <a href="http://news.mail.ru/politics/6861560/">
- # http://news.mail.ru/politics/6861560/
- # </a>
- #
- # The Ukrainians will no longer change the clock (in Russian)
- # <a href="http://www.segodnya.ua/news/14290482.html">
- # http://www.segodnya.ua/news/14290482.html
- # </a>
- #
- # Deputies cancelled the winter time (in Russian)
- # <a href="http://www.pravda.com.ua/rus/news/2011/09/20/6600616/">
- # http://www.pravda.com.ua/rus/news/2011/09/20/6600616/
- # </a>
- #
- # From Philip Pizzey (2011-10-18):
- # Today my Ukrainian colleagues have informed me that the
- # Ukrainian parliament have decided that they will go to winter
- # time this year after all.
- #
- # From Udo Schwedt (2011-10-18):
- # As far as I understand, the recent change to the Ukranian time zone
- # (Europe/Kiev) to introduce permanent daylight saving time (similar
- # to Russia) was reverted today:
- #
- # <a href="http://portal.rada.gov.ua/rada/control/en/publish/article/info_left?art_id=287324&cat_id=105995">
- # http://portal.rada.gov.ua/rada/control/en/publish/article/info_left?art_id=287324&cat_id=105995
- # </a>
- #
- # Also reported by Alexander Bokovoy (2011-10-18) who also noted:
- # The law documents themselves are at
- #
- # <a href="http://w1.c1.rada.gov.ua/pls/zweb_n/webproc4_1?id=&pf3511=41484">
- # http://w1.c1.rada.gov.ua/pls/zweb_n/webproc4_1?id=&pf3511=41484
- # </a>
- # Zone NAME GMTOFF RULES FORMAT [UNTIL]
- # Most of Ukraine since 1970 has been like Kiev.
- # "Kyiv" is the transliteration of the Ukrainian name, but
- # "Kiev" is more common in English.
- Zone Europe/Kiev 2:02:04 - LMT 1880
- 2:02:04 - KMT 1924 May 2 # Kiev Mean Time
- 2:00 - EET 1930 Jun 21
- 3:00 - MSK 1941 Sep 20
- 1:00 C-Eur CE%sT 1943 Nov 6
- 3:00 Russia MSK/MSD 1990
- 3:00 - MSK 1990 Jul 1 2:00
- 2:00 - EET 1992
- 2:00 E-Eur EE%sT 1995
- 2:00 EU EE%sT
- # Ruthenia used CET 1990/1991.
- # "Uzhhorod" is the transliteration of the Ukrainian name, but
- # "Uzhgorod" is more common in English.
- Zone Europe/Uzhgorod 1:29:12 - LMT 1890 Oct
- 1:00 - CET 1940
- 1:00 C-Eur CE%sT 1944 Oct
- 1:00 1:00 CEST 1944 Oct 26
- 1:00 - CET 1945 Jun 29
- 3:00 Russia MSK/MSD 1990
- 3:00 - MSK 1990 Jul 1 2:00
- 1:00 - CET 1991 Mar 31 3:00
- 2:00 - EET 1992
- 2:00 E-Eur EE%sT 1995
- 2:00 EU EE%sT
- # Zaporozh'ye and eastern Lugansk oblasts observed DST 1990/1991.
- # "Zaporizhia" is the transliteration of the Ukrainian name, but
- # "Zaporozh'ye" is more common in English. Use the common English
- # spelling, except omit the apostrophe as it is not allowed in
- # portable Posix file names.
- Zone Europe/Zaporozhye 2:20:40 - LMT 1880
- 2:20 - CUT 1924 May 2 # Central Ukraine T
- 2:00 - EET 1930 Jun 21
- 3:00 - MSK 1941 Aug 25
- 1:00 C-Eur CE%sT 1943 Oct 25
- 3:00 Russia MSK/MSD 1991 Mar 31 2:00
- 2:00 E-Eur EE%sT 1995
- 2:00 EU EE%sT
- # Central Crimea used Moscow time 1994/1997.
- Zone Europe/Simferopol 2:16:24 - LMT 1880
- 2:16 - SMT 1924 May 2 # Simferopol Mean T
- 2:00 - EET 1930 Jun 21
- 3:00 - MSK 1941 Nov
- 1:00 C-Eur CE%sT 1944 Apr 13
- 3:00 Russia MSK/MSD 1990
- 3:00 - MSK 1990 Jul 1 2:00
- 2:00 - EET 1992
- # From Paul Eggert (2006-03-22):
- # The _Economist_ (1994-05-28, p 45) reports that central Crimea switched
- # from Kiev to Moscow time sometime after the January 1994 elections.
- # Shanks (1999) says ``date of change uncertain'', but implies that it happened
- # sometime between the 1994 DST switches. Shanks & Pottenger simply say
- # 1994-09-25 03:00, but that can't be right. For now, guess it
- # changed in May.
- 2:00 E-Eur EE%sT 1994 May
- # From IATA SSIM (1994/1997), which also says that Kerch is still like Kiev.
- 3:00 E-Eur MSK/MSD 1996 Mar 31 3:00s
- 3:00 1:00 MSD 1996 Oct 27 3:00s
- # IATA SSIM (1997-09) says Crimea switched to EET/EEST.
- # Assume it happened in March by not changing the clocks.
- 3:00 Russia MSK/MSD 1997
- 3:00 - MSK 1997 Mar lastSun 1:00u
- 2:00 EU EE%sT
- ###############################################################################
- # One source shows that Bulgaria, Cyprus, Finland, and Greece observe DST from
- # the last Sunday in March to the last Sunday in September in 1986.
- # The source shows Romania changing a day later than everybody else.
- #
- # According to Bernard Sieloff's source, Poland is in the MET time zone but
- # uses the WE DST rules. The Western USSR uses EET+1 and ME DST rules.
- # Bernard Sieloff's source claims Romania switches on the same day, but at
- # 00:00 standard time (i.e., 01:00 DST). It also claims that Turkey
- # switches on the same day, but switches on at 01:00 standard time
- # and off at 00:00 standard time (i.e., 01:00 DST)
- # ...
- # Date: Wed, 28 Jan 87 16:56:27 -0100
- # From: Tom Hofmann
- # ...
- #
- # ...the European time rules are...standardized since 1981, when
- # most European coun[tr]ies started DST. Before that year, only
- # a few countries (UK, France, Italy) had DST, each according
- # to own national rules. In 1981, however, DST started on
- # 'Apr firstSun', and not on 'Mar lastSun' as in the following
- # years...
- # But also since 1981 there are some more national exceptions
- # than listed in 'europe': Switzerland, for example, joined DST
- # one year later, Denmark ended DST on 'Oct 1' instead of 'Sep
- # lastSun' in 1981---I don't know how they handle now.
- #
- # Finally, DST ist always from 'Apr 1' to 'Oct 1' in the
- # Soviet Union (as far as I know).
- #
- # Tom Hofmann, Scientific Computer Center, CIBA-GEIGY AG,
- # 4002 Basle, Switzerland
- # ...
- # ...
- # Date: Wed, 4 Feb 87 22:35:22 +0100
- # From: Dik T. Winter
- # ...
- #
- # The information from Tom Hofmann is (as far as I know) not entirely correct.
- # After a request from chongo at amdahl I tried to retrieve all information
- # about DST in Europe. I was able to find all from about 1969.
- #
- # ...standardization on DST in Europe started in about 1977 with switches on
- # first Sunday in April and last Sunday in September...
- # In 1981 UK joined Europe insofar that
- # the starting day for both shifted to last Sunday in March. And from 1982
- # the whole of Europe used DST, with switch dates April 1 and October 1 in
- # the Sov[i]et Union. In 1985 the SU reverted to standard Europe[a]n switch
- # dates...
- #
- # It should also be remembered that time-zones are not constants; e.g.
- # Portugal switched in 1976 from MET (or CET) to WET with DST...
- # Note also that though there were rules for switch dates not
- # all countries abided to these dates, and many individual deviations
- # occurred, though not since 1982 I believe. Another note: it is always
- # assumed that DST is 1 hour ahead of normal time, this need not be the
- # case; at least in the Netherlands there have been times when DST was 2 hours
- # in advance of normal time.
- #
- # ...
- # dik t. winter, cwi, amsterdam, nederland
- # ...
- # From Bob Devine (1988-01-28):
- # ...
- # Greece: Last Sunday in April to last Sunday in September (iffy on dates).
- # Since 1978. Change at midnight.
- # ...
- # Monaco: has same DST as France.
- # ...
|