1# <pre> 2# This file is in the public domain, so clarified as of 3# 2009-05-17 by Arthur David Olson. 4 5# This data is by no means authoritative; if you think you know better, 6# go ahead and edit the file (and please send any changes to 7# tz@elsie.nci.nih.gov for general use in the future). 8 9# From Paul Eggert (2006-03-22): 10# A good source for time zone historical data outside the U.S. is 11# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), 12# San Diego: ACS Publications, Inc. (2003). 13# 14# Gwillim Law writes that a good source 15# for recent time zone data is the International Air Transport 16# Association's Standard Schedules Information Manual (IATA SSIM), 17# published semiannually. Law sent in several helpful summaries 18# of the IATA's data after 1990. 19# 20# Except where otherwise noted, Shanks & Pottenger is the source for 21# entries through 1991, and IATA SSIM is the source for entries afterwards. 22# 23# Other sources occasionally used include: 24# 25# Edward W. Whitman, World Time Differences, 26# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), 27# which I found in the UCLA library. 28# 29# <a href="http://www.pettswoodvillage.co.uk/Daylight_Savings_William_Willett.pdf"> 30# William Willett, The Waste of Daylight, 19th edition 31# </a> (1914-03) 32# 33# Brazil's Departamento Servico da Hora (DSH), 34# <a href="http://pcdsh01.on.br/HISTHV.htm"> 35# History of Summer Time 36# </a> (1998-09-21, in Portuguese) 37 38# 39# I invented the abbreviations marked `*' in the following table; 40# the rest are from earlier versions of this file, or from other sources. 41# Corrections are welcome! 42# std dst 2dst 43# LMT Local Mean Time 44# -4:00 AST ADT Atlantic 45# -3:00 WGT WGST Western Greenland* 46# -1:00 EGT EGST Eastern Greenland* 47# 0:00 GMT BST BDST Greenwich, British Summer 48# 0:00 GMT IST Greenwich, Irish Summer 49# 0:00 WET WEST WEMT Western Europe 50# 0:19:32.13 AMT NST Amsterdam, Netherlands Summer (1835-1937)* 51# 0:20 NET NEST Netherlands (1937-1940)* 52# 1:00 CET CEST CEMT Central Europe 53# 1:00:14 SET Swedish (1879-1899)* 54# 2:00 EET EEST Eastern Europe 55# 3:00 MSK MSD Moscow 56# 57# A reliable and entertaining source about time zones, especially in Britain, 58# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). 59 60# From Peter Ilieve (1994-12-04), 61# The original six [EU members]: Belgium, France, (West) Germany, Italy, 62# Luxembourg, the Netherlands. 63# Plus, from 1 Jan 73: Denmark, Ireland, United Kingdom. 64# Plus, from 1 Jan 81: Greece. 65# Plus, from 1 Jan 86: Spain, Portugal. 66# Plus, from 1 Jan 95: Austria, Finland, Sweden. (Norway negotiated terms for 67# entry but in a referendum on 28 Nov 94 the people voted No by 52.2% to 47.8% 68# on a turnout of 88.6%. This was almost the same result as Norway's previous 69# referendum in 1972, they are the only country to have said No twice. 70# Referendums in the other three countries voted Yes.) 71# ... 72# Estonia ... uses EU dates but not at 01:00 GMT, they use midnight GMT. 73# I don't think they know yet what they will do from 1996 onwards. 74# ... 75# There shouldn't be any [current members who are not using EU rules]. 76# A Directive has the force of law, member states are obliged to enact 77# national law to implement it. The only contentious issue was the 78# different end date for the UK and Ireland, and this was always allowed 79# in the Directive. 80 81 82############################################################################### 83 84# Britain (United Kingdom) and Ireland (Eire) 85 86# From Peter Ilieve (1994-07-06): 87# 88# On 17 Jan 1994 the Independent, a UK quality newspaper, had a piece about 89# historical vistas along the Thames in west London. There was a photo 90# and a sketch map showing some of the sightlines involved. One paragraph 91# of the text said: 92# 93# `An old stone obelisk marking a forgotten terrestrial meridian stands 94# beside the river at Kew. In the 18th century, before time and longitude 95# was standardised by the Royal Observatory in Greenwich, scholars observed 96# this stone and the movement of stars from Kew Observatory nearby. They 97# made their calculations and set the time for the Horse Guards and Parliament, 98# but now the stone is obscured by scrubwood and can only be seen by walking 99# along the towpath within a few yards of it.' 100# 101# I have a one inch to one mile map of London and my estimate of the stone's 102# position is 51 deg. 28' 30" N, 0 deg. 18' 45" W. The longitude should 103# be within about +-2". The Ordnance Survey grid reference is TQ172761. 104# 105# [This yields GMTOFF = -0:01:15 for London LMT in the 18th century.] 106 107# From Paul Eggert (1993-11-18): 108# 109# Howse writes that Britain was the first country to use standard time. 110# The railways cared most about the inconsistencies of local mean time, 111# and it was they who forced a uniform time on the country. 112# The original idea was credited to Dr. William Hyde Wollaston (1766-1828) 113# and was popularized by Abraham Follett Osler (1808-1903). 114# The first railway to adopt London time was the Great Western Railway 115# in November 1840; other railways followed suit, and by 1847 most 116# (though not all) railways used London time. On 1847-09-22 the 117# Railway Clearing House, an industry standards body, recommended that GMT be 118# adopted at all stations as soon as the General Post Office permitted it. 119# The transition occurred on 12-01 for the L&NW, the Caledonian, 120# and presumably other railways; the January 1848 Bradshaw's lists many 121# railways as using GMT. By 1855 the vast majority of public 122# clocks in Britain were set to GMT (though some, like the great clock 123# on Tom Tower at Christ Church, Oxford, were fitted with two minute hands, 124# one for local time and one for GMT). The last major holdout was the legal 125# system, which stubbornly stuck to local time for many years, leading 126# to oddities like polls opening at 08:13 and closing at 16:13. 127# The legal system finally switched to GMT when the Statutes (Definition 128# of Time) Act took effect; it received the Royal Assent on 1880-08-02. 129# 130# In the tables below, we condense this complicated story into a single 131# transition date for London, namely 1847-12-01. We don't know as much 132# about Dublin, so we use 1880-08-02, the legal transition time. 133 134# From Paul Eggert (2003-09-27): 135# Summer Time was first seriously proposed by William Willett (1857-1915), 136# a London builder and member of the Royal Astronomical Society 137# who circulated a pamphlet ``The Waste of Daylight'' (1907) 138# that proposed advancing clocks 20 minutes on each of four Sundays in April, 139# and retarding them by the same amount on four Sundays in September. 140# A bill was drafted in 1909 and introduced in Parliament several times, 141# but it met with ridicule and opposition, especially from farming interests. 142# Later editions of the pamphlet proposed one-hour summer time, and 143# it was eventually adopted as a wartime measure in 1916. 144# See: Summer Time Arrives Early, The Times (2000-05-18). 145# A monument to Willett was unveiled on 1927-05-21, in an open space in 146# a 45-acre wood near Chislehurst, Kent that was purchased by popular 147# subscription and open to the public. On the south face of the monolith, 148# designed by G. W. Miller, is the...William Willett Memorial Sundial, 149# which is permanently set to Summer Time. 150 151# From Winston Churchill (1934-04-28): 152# It is one of the paradoxes of history that we should owe the boon of 153# summer time, which gives every year to the people of this country 154# between 160 and 170 hours more daylight leisure, to a war which 155# plunged Europe into darkness for four years, and shook the 156# foundations of civilization throughout the world. 157# -- <a href="http://www.winstonchurchill.org/fh114willett.htm"> 158# "A Silent Toast to William Willett", Pictorial Weekly 159# </a> 160 161# From Paul Eggert (1996-09-03): 162# The OED Supplement says that the English originally said ``Daylight Saving'' 163# when they were debating the adoption of DST in 1908; but by 1916 this 164# term appears only in quotes taken from DST's opponents, whereas the 165# proponents (who eventually won the argument) are quoted as using ``Summer''. 166 167# From Arthur David Olson (1989-01-19): 168# 169# A source at the British Information Office in New York avers that it's 170# known as "British" Summer Time in all parts of the United Kingdom. 171 172# Date: 4 Jan 89 08:57:25 GMT (Wed) 173# From: Jonathan Leffler 174# [British Summer Time] is fixed annually by Act of Parliament. 175# If you can predict what Parliament will do, you should be in 176# politics making a fortune, not computing. 177 178# From Chris Carrier (1996-06-14): 179# I remember reading in various wartime issues of the London Times the 180# acronym BDST for British Double Summer Time. Look for the published 181# time of sunrise and sunset in The Times, when BDST was in effect, and 182# if you find a zone reference it will say, "All times B.D.S.T." 183 184# From Joseph S. Myers (1999-09-02): 185# ... some military cables (WO 219/4100 - this is a copy from the 186# main SHAEF archives held in the US National Archives, SHAEF/5252/8/516) 187# agree that the usage is BDST (this appears in a message dated 17 Feb 1945). 188 189# From Joseph S. Myers (2000-10-03): 190# On 18th April 1941, Sir Stephen Tallents of the BBC wrote to Sir 191# Alexander Maxwell of the Home Office asking whether there was any 192# official designation; the reply of the 21st was that there wasn't 193# but he couldn't think of anything better than the "Double British 194# Summer Time" that the BBC had been using informally. 195# http://student.cusu.cam.ac.uk/~jsm28/british-time/bbc-19410418.png 196# http://student.cusu.cam.ac.uk/~jsm28/british-time/ho-19410421.png 197 198# From Sir Alexander Maxwell in the above-mentioned letter (1941-04-21): 199# [N]o official designation has as far as I know been adopted for the time 200# which is to be introduced in May.... 201# I cannot think of anything better than "Double British Summer Time" 202# which could not be said to run counter to any official description. 203 204# From Paul Eggert (2000-10-02): 205# Howse writes (p 157) `DBST' too, but `BDST' seems to have been common 206# and follows the more usual convention of putting the location name first, 207# so we use `BDST'. 208 209# Peter Ilieve (1998-04-19) described at length 210# the history of summer time legislation in the United Kingdom. 211# Since 1998 Joseph S. Myers has been updating 212# and extending this list, which can be found in 213# http://student.cusu.cam.ac.uk/~jsm28/british-time/ 214# <a href="http://www.polyomino.org.uk/british-time/"> 215# History of legal time in Britain 216# </a> 217# Rob Crowther (2012-01-04) reports that that URL no longer 218# exists, and the article can now be found at: 219# <a href="http://www.polyomino.org.uk/british-time/"> 220# http://www.polyomino.org.uk/british-time/ 221# </a> 222 223# From Joseph S. Myers (1998-01-06): 224# 225# The legal time in the UK outside of summer time is definitely GMT, not UTC; 226# see Lord Tanlaw's speech 227# <a href="http://www.parliament.the-stationery-office.co.uk/pa/ld199697/ldhansrd/pdvn/lds97/text/70611-20.htm#70611-20_head0"> 228# (Lords Hansard 11 June 1997 columns 964 to 976) 229# </a>. 230 231# From Paul Eggert (2006-03-22): 232# 233# For lack of other data, follow Shanks & Pottenger for Eire in 1940-1948. 234# 235# Given Ilieve and Myers's data, the following claims by Shanks & Pottenger 236# are incorrect: 237# * Wales did not switch from GMT to daylight saving time until 238# 1921 Apr 3, when they began to conform with the rest of Great Britain. 239# Actually, Wales was identical after 1880. 240# * Eire had two transitions on 1916 Oct 1. 241# It actually just had one transition. 242# * Northern Ireland used single daylight saving time throughout WW II. 243# Actually, it conformed to Britain. 244# * GB-Eire changed standard time to 1 hour ahead of GMT on 1968-02-18. 245# Actually, that date saw the usual switch to summer time. 246# Standard time was not changed until 1968-10-27 (the clocks didn't change). 247# 248# Here is another incorrect claim by Shanks & Pottenger: 249# * Jersey, Guernsey, and the Isle of Man did not switch from GMT 250# to daylight saving time until 1921 Apr 3, when they began to 251# conform with Great Britain. 252# S.R.&O. 1916, No. 382 and HO 45/10811/312364 (quoted above) say otherwise. 253# 254# The following claim by Shanks & Pottenger is possible though doubtful; 255# we'll ignore it for now. 256# * Dublin's 1971-10-31 switch was at 02:00, even though London's was 03:00. 257# 258# 259# Whitman says Dublin Mean Time was -0:25:21, which is more precise than 260# Shanks & Pottenger. 261# Perhaps this was Dunsink Observatory Time, as Dunsink Observatory 262# (8 km NW of Dublin's center) seemingly was to Dublin as Greenwich was 263# to London. For example: 264# 265# "Timeball on the ballast office is down. Dunsink time." 266# -- James Joyce, Ulysses 267 268# From Joseph S. Myers (2005-01-26): 269# Irish laws are available online at www.irishstatutebook.ie. These include 270# various relating to legal time, for example: 271# 272# ZZA13Y1923.html ZZA12Y1924.html ZZA8Y1925.html ZZSIV20PG1267.html 273# 274# ZZSI71Y1947.html ZZSI128Y1948.html ZZSI23Y1949.html ZZSI41Y1950.html 275# ZZSI27Y1951.html ZZSI73Y1952.html 276# 277# ZZSI11Y1961.html ZZSI232Y1961.html ZZSI182Y1962.html 278# ZZSI167Y1963.html ZZSI257Y1964.html ZZSI198Y1967.html 279# ZZA23Y1968.html ZZA17Y1971.html 280# 281# ZZSI67Y1981.html ZZSI212Y1982.html ZZSI45Y1986.html 282# ZZSI264Y1988.html ZZSI52Y1990.html ZZSI371Y1992.html 283# ZZSI395Y1994.html ZZSI484Y1997.html ZZSI506Y2001.html 284# 285# [These are all relative to the root, e.g., the first is 286# <http://www.irishstatutebook.ie/ZZA13Y1923.html>.] 287# 288# (These are those I found, but there could be more. In any case these 289# should allow various updates to the comments in the europe file to cover 290# the laws applicable in Ireland.) 291# 292# (Note that the time in the Republic of Ireland since 1968 has been defined 293# in terms of standard time being GMT+1 with a period of winter time when it 294# is GMT, rather than standard time being GMT with a period of summer time 295# being GMT+1.) 296 297# From Paul Eggert (1999-03-28): 298# Clive Feather (<news:859845706.26043.0@office.demon.net>, 1997-03-31) 299# reports that Folkestone (Cheriton) Shuttle Terminal uses Concession Time 300# (CT), equivalent to French civil time. 301# Julian Hill (<news:36118128.5A14@virgin.net>, 1998-09-30) reports that 302# trains between Dollands Moor (the freight facility next door) 303# and Frethun run in CT. 304# My admittedly uninformed guess is that the terminal has two authorities, 305# the French concession operators and the British civil authorities, 306# and that the time depends on who you're talking to. 307# If, say, the British police were called to the station for some reason, 308# I would expect the official police report to use GMT/BST and not CET/CEST. 309# This is a borderline case, but for now let's stick to GMT/BST. 310 311# From an anonymous contributor (1996-06-02): 312# The law governing time in Ireland is under Statutory Instrument SI 395/94, 313# which gives force to European Union 7th Council Directive # 94/21/EC. 314# Under this directive, the Minister for Justice in Ireland makes appropriate 315# regulations. I spoke this morning with the Secretary of the Department of 316# Justice (tel +353 1 678 9711) who confirmed to me that the correct name is 317# "Irish Summer Time", abbreviated to "IST". 318 319# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 320# Summer Time Act, 1916 321Rule GB-Eire 1916 only - May 21 2:00s 1:00 BST 322Rule GB-Eire 1916 only - Oct 1 2:00s 0 GMT 323# S.R.&O. 1917, No. 358 324Rule GB-Eire 1917 only - Apr 8 2:00s 1:00 BST 325Rule GB-Eire 1917 only - Sep 17 2:00s 0 GMT 326# S.R.&O. 1918, No. 274 327Rule GB-Eire 1918 only - Mar 24 2:00s 1:00 BST 328Rule GB-Eire 1918 only - Sep 30 2:00s 0 GMT 329# S.R.&O. 1919, No. 297 330Rule GB-Eire 1919 only - Mar 30 2:00s 1:00 BST 331Rule GB-Eire 1919 only - Sep 29 2:00s 0 GMT 332# S.R.&O. 1920, No. 458 333Rule GB-Eire 1920 only - Mar 28 2:00s 1:00 BST 334# S.R.&O. 1920, No. 1844 335Rule GB-Eire 1920 only - Oct 25 2:00s 0 GMT 336# S.R.&O. 1921, No. 363 337Rule GB-Eire 1921 only - Apr 3 2:00s 1:00 BST 338Rule GB-Eire 1921 only - Oct 3 2:00s 0 GMT 339# S.R.&O. 1922, No. 264 340Rule GB-Eire 1922 only - Mar 26 2:00s 1:00 BST 341Rule GB-Eire 1922 only - Oct 8 2:00s 0 GMT 342# The Summer Time Act, 1922 343Rule GB-Eire 1923 only - Apr Sun>=16 2:00s 1:00 BST 344Rule GB-Eire 1923 1924 - Sep Sun>=16 2:00s 0 GMT 345Rule GB-Eire 1924 only - Apr Sun>=9 2:00s 1:00 BST 346Rule GB-Eire 1925 1926 - Apr Sun>=16 2:00s 1:00 BST 347# The Summer Time Act, 1925 348Rule GB-Eire 1925 1938 - Oct Sun>=2 2:00s 0 GMT 349Rule GB-Eire 1927 only - Apr Sun>=9 2:00s 1:00 BST 350Rule GB-Eire 1928 1929 - Apr Sun>=16 2:00s 1:00 BST 351Rule GB-Eire 1930 only - Apr Sun>=9 2:00s 1:00 BST 352Rule GB-Eire 1931 1932 - Apr Sun>=16 2:00s 1:00 BST 353Rule GB-Eire 1933 only - Apr Sun>=9 2:00s 1:00 BST 354Rule GB-Eire 1934 only - Apr Sun>=16 2:00s 1:00 BST 355Rule GB-Eire 1935 only - Apr Sun>=9 2:00s 1:00 BST 356Rule GB-Eire 1936 1937 - Apr Sun>=16 2:00s 1:00 BST 357Rule GB-Eire 1938 only - Apr Sun>=9 2:00s 1:00 BST 358Rule GB-Eire 1939 only - Apr Sun>=16 2:00s 1:00 BST 359# S.R.&O. 1939, No. 1379 360Rule GB-Eire 1939 only - Nov Sun>=16 2:00s 0 GMT 361# S.R.&O. 1940, No. 172 and No. 1883 362Rule GB-Eire 1940 only - Feb Sun>=23 2:00s 1:00 BST 363# S.R.&O. 1941, No. 476 364Rule GB-Eire 1941 only - May Sun>=2 1:00s 2:00 BDST 365Rule GB-Eire 1941 1943 - Aug Sun>=9 1:00s 1:00 BST 366# S.R.&O. 1942, No. 506 367Rule GB-Eire 1942 1944 - Apr Sun>=2 1:00s 2:00 BDST 368# S.R.&O. 1944, No. 932 369Rule GB-Eire 1944 only - Sep Sun>=16 1:00s 1:00 BST 370# S.R.&O. 1945, No. 312 371Rule GB-Eire 1945 only - Apr Mon>=2 1:00s 2:00 BDST 372Rule GB-Eire 1945 only - Jul Sun>=9 1:00s 1:00 BST 373# S.R.&O. 1945, No. 1208 374Rule GB-Eire 1945 1946 - Oct Sun>=2 2:00s 0 GMT 375Rule GB-Eire 1946 only - Apr Sun>=9 2:00s 1:00 BST 376# The Summer Time Act, 1947 377Rule GB-Eire 1947 only - Mar 16 2:00s 1:00 BST 378Rule GB-Eire 1947 only - Apr 13 1:00s 2:00 BDST 379Rule GB-Eire 1947 only - Aug 10 1:00s 1:00 BST 380Rule GB-Eire 1947 only - Nov 2 2:00s 0 GMT 381# Summer Time Order, 1948 (S.I. 1948/495) 382Rule GB-Eire 1948 only - Mar 14 2:00s 1:00 BST 383Rule GB-Eire 1948 only - Oct 31 2:00s 0 GMT 384# Summer Time Order, 1949 (S.I. 1949/373) 385Rule GB-Eire 1949 only - Apr 3 2:00s 1:00 BST 386Rule GB-Eire 1949 only - Oct 30 2:00s 0 GMT 387# Summer Time Order, 1950 (S.I. 1950/518) 388# Summer Time Order, 1951 (S.I. 1951/430) 389# Summer Time Order, 1952 (S.I. 1952/451) 390Rule GB-Eire 1950 1952 - Apr Sun>=14 2:00s 1:00 BST 391Rule GB-Eire 1950 1952 - Oct Sun>=21 2:00s 0 GMT 392# revert to the rules of the Summer Time Act, 1925 393Rule GB-Eire 1953 only - Apr Sun>=16 2:00s 1:00 BST 394Rule GB-Eire 1953 1960 - Oct Sun>=2 2:00s 0 GMT 395Rule GB-Eire 1954 only - Apr Sun>=9 2:00s 1:00 BST 396Rule GB-Eire 1955 1956 - Apr Sun>=16 2:00s 1:00 BST 397Rule GB-Eire 1957 only - Apr Sun>=9 2:00s 1:00 BST 398Rule GB-Eire 1958 1959 - Apr Sun>=16 2:00s 1:00 BST 399Rule GB-Eire 1960 only - Apr Sun>=9 2:00s 1:00 BST 400# Summer Time Order, 1961 (S.I. 1961/71) 401# Summer Time (1962) Order, 1961 (S.I. 1961/2465) 402# Summer Time Order, 1963 (S.I. 1963/81) 403Rule GB-Eire 1961 1963 - Mar lastSun 2:00s 1:00 BST 404Rule GB-Eire 1961 1968 - Oct Sun>=23 2:00s 0 GMT 405# Summer Time (1964) Order, 1963 (S.I. 1963/2101) 406# Summer Time Order, 1964 (S.I. 1964/1201) 407# Summer Time Order, 1967 (S.I. 1967/1148) 408Rule GB-Eire 1964 1967 - Mar Sun>=19 2:00s 1:00 BST 409# Summer Time Order, 1968 (S.I. 1968/117) 410Rule GB-Eire 1968 only - Feb 18 2:00s 1:00 BST 411# The British Standard Time Act, 1968 412# (no summer time) 413# The Summer Time Act, 1972 414Rule GB-Eire 1972 1980 - Mar Sun>=16 2:00s 1:00 BST 415Rule GB-Eire 1972 1980 - Oct Sun>=23 2:00s 0 GMT 416# Summer Time Order, 1980 (S.I. 1980/1089) 417# Summer Time Order, 1982 (S.I. 1982/1673) 418# Summer Time Order, 1986 (S.I. 1986/223) 419# Summer Time Order, 1988 (S.I. 1988/931) 420Rule GB-Eire 1981 1995 - Mar lastSun 1:00u 1:00 BST 421Rule GB-Eire 1981 1989 - Oct Sun>=23 1:00u 0 GMT 422# Summer Time Order, 1989 (S.I. 1989/985) 423# Summer Time Order, 1992 (S.I. 1992/1729) 424# Summer Time Order 1994 (S.I. 1994/2798) 425Rule GB-Eire 1990 1995 - Oct Sun>=22 1:00u 0 GMT 426# Summer Time Order 1997 (S.I. 1997/2982) 427# See EU for rules starting in 1996. 428 429# Zone NAME GMTOFF RULES FORMAT [UNTIL] 430Zone Europe/London -0:01:15 - LMT 1847 Dec 1 0:00s 431 0:00 GB-Eire %s 1968 Oct 27 432 1:00 - BST 1971 Oct 31 2:00u 433 0:00 GB-Eire %s 1996 434 0:00 EU GMT/BST 435Link Europe/London Europe/Jersey 436Link Europe/London Europe/Guernsey 437Link Europe/London Europe/Isle_of_Man 438Zone Europe/Dublin -0:25:00 - LMT 1880 Aug 2 439 -0:25:21 - DMT 1916 May 21 2:00 440 -0:25:21 1:00 IST 1916 Oct 1 2:00s 441 0:00 GB-Eire %s 1921 Dec 6 # independence 442 0:00 GB-Eire GMT/IST 1940 Feb 25 2:00 443 0:00 1:00 IST 1946 Oct 6 2:00 444 0:00 - GMT 1947 Mar 16 2:00 445 0:00 1:00 IST 1947 Nov 2 2:00 446 0:00 - GMT 1948 Apr 18 2:00 447 0:00 GB-Eire GMT/IST 1968 Oct 27 448 1:00 - IST 1971 Oct 31 2:00u 449 0:00 GB-Eire GMT/IST 1996 450 0:00 EU GMT/IST 451 452############################################################################### 453 454# Europe 455 456# EU rules are for the European Union, previously known as the EC, EEC, 457# Common Market, etc. 458 459# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 460Rule EU 1977 1980 - Apr Sun>=1 1:00u 1:00 S 461Rule EU 1977 only - Sep lastSun 1:00u 0 - 462Rule EU 1978 only - Oct 1 1:00u 0 - 463Rule EU 1979 1995 - Sep lastSun 1:00u 0 - 464Rule EU 1981 max - Mar lastSun 1:00u 1:00 S 465Rule EU 1996 max - Oct lastSun 1:00u 0 - 466# The most recent directive covers the years starting in 2002. See: 467# <a="http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32000L0084:EN:NOT"> 468# Directive 2000/84/EC of the European Parliament and of the Council 469# of 19 January 2001 on summer-time arrangements. 470# </a> 471 472# W-Eur differs from EU only in that W-Eur uses standard time. 473Rule W-Eur 1977 1980 - Apr Sun>=1 1:00s 1:00 S 474Rule W-Eur 1977 only - Sep lastSun 1:00s 0 - 475Rule W-Eur 1978 only - Oct 1 1:00s 0 - 476Rule W-Eur 1979 1995 - Sep lastSun 1:00s 0 - 477Rule W-Eur 1981 max - Mar lastSun 1:00s 1:00 S 478Rule W-Eur 1996 max - Oct lastSun 1:00s 0 - 479 480# Older C-Eur rules are for convenience in the tables. 481# From 1977 on, C-Eur differs from EU only in that C-Eur uses standard time. 482Rule C-Eur 1916 only - Apr 30 23:00 1:00 S 483Rule C-Eur 1916 only - Oct 1 1:00 0 - 484Rule C-Eur 1917 1918 - Apr Mon>=15 2:00s 1:00 S 485Rule C-Eur 1917 1918 - Sep Mon>=15 2:00s 0 - 486Rule C-Eur 1940 only - Apr 1 2:00s 1:00 S 487Rule C-Eur 1942 only - Nov 2 2:00s 0 - 488Rule C-Eur 1943 only - Mar 29 2:00s 1:00 S 489Rule C-Eur 1943 only - Oct 4 2:00s 0 - 490Rule C-Eur 1944 1945 - Apr Mon>=1 2:00s 1:00 S 491# Whitman gives 1944 Oct 7; go with Shanks & Pottenger. 492Rule C-Eur 1944 only - Oct 2 2:00s 0 - 493# From Jesper Norgaard Welen (2008-07-13): 494# 495# I found what is probably a typo of 2:00 which should perhaps be 2:00s 496# in the C-Eur rule from tz database version 2008d (this part was 497# corrected in version 2008d). The circumstancial evidence is simply the 498# tz database itself, as seen below: 499# 500# Zone Europe/Paris 0:09:21 - LMT 1891 Mar 15 0:01 501# 0:00 France WE%sT 1945 Sep 16 3:00 502# 503# Zone Europe/Monaco 0:29:32 - LMT 1891 Mar 15 504# 0:00 France WE%sT 1945 Sep 16 3:00 505# 506# Zone Europe/Belgrade 1:22:00 - LMT 1884 507# 1:00 1:00 CEST 1945 Sep 16 2:00s 508# 509# Rule France 1945 only - Sep 16 3:00 0 - 510# Rule Belgium 1945 only - Sep 16 2:00s 0 - 511# Rule Neth 1945 only - Sep 16 2:00s 0 - 512# 513# The rule line to be changed is: 514# 515# Rule C-Eur 1945 only - Sep 16 2:00 0 - 516# 517# It seems that Paris, Monaco, Rule France, Rule Belgium all agree on 518# 2:00 standard time, e.g. 3:00 local time. However there are no 519# countries that use C-Eur rules in September 1945, so the only items 520# affected are apparently these ficticious zones that translates acronyms 521# CET and MET: 522# 523# Zone CET 1:00 C-Eur CE%sT 524# Zone MET 1:00 C-Eur ME%sT 525# 526# It this is right then the corrected version would look like: 527# 528# Rule C-Eur 1945 only - Sep 16 2:00s 0 - 529# 530# A small step for mankind though 8-) 531Rule C-Eur 1945 only - Sep 16 2:00s 0 - 532Rule C-Eur 1977 1980 - Apr Sun>=1 2:00s 1:00 S 533Rule C-Eur 1977 only - Sep lastSun 2:00s 0 - 534Rule C-Eur 1978 only - Oct 1 2:00s 0 - 535Rule C-Eur 1979 1995 - Sep lastSun 2:00s 0 - 536Rule C-Eur 1981 max - Mar lastSun 2:00s 1:00 S 537Rule C-Eur 1996 max - Oct lastSun 2:00s 0 - 538 539# E-Eur differs from EU only in that E-Eur switches at midnight local time. 540Rule E-Eur 1977 1980 - Apr Sun>=1 0:00 1:00 S 541Rule E-Eur 1977 only - Sep lastSun 0:00 0 - 542Rule E-Eur 1978 only - Oct 1 0:00 0 - 543Rule E-Eur 1979 1995 - Sep lastSun 0:00 0 - 544Rule E-Eur 1981 max - Mar lastSun 0:00 1:00 S 545Rule E-Eur 1996 max - Oct lastSun 0:00 0 - 546 547# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 548Rule Russia 1917 only - Jul 1 23:00 1:00 MST # Moscow Summer Time 549Rule Russia 1917 only - Dec 28 0:00 0 MMT # Moscow Mean Time 550Rule Russia 1918 only - May 31 22:00 2:00 MDST # Moscow Double Summer Time 551Rule Russia 1918 only - Sep 16 1:00 1:00 MST 552Rule Russia 1919 only - May 31 23:00 2:00 MDST 553Rule Russia 1919 only - Jul 1 2:00 1:00 S 554Rule Russia 1919 only - Aug 16 0:00 0 - 555Rule Russia 1921 only - Feb 14 23:00 1:00 S 556Rule Russia 1921 only - Mar 20 23:00 2:00 M # Midsummer 557Rule Russia 1921 only - Sep 1 0:00 1:00 S 558Rule Russia 1921 only - Oct 1 0:00 0 - 559# Act No.925 of the Council of Ministers of the USSR (1980-10-24): 560Rule Russia 1981 1984 - Apr 1 0:00 1:00 S 561Rule Russia 1981 1983 - Oct 1 0:00 0 - 562# Act No.967 of the Council of Ministers of the USSR (1984-09-13), repeated in 563# Act No.227 of the Council of Ministers of the USSR (1989-03-14): 564Rule Russia 1984 1991 - Sep lastSun 2:00s 0 - 565Rule Russia 1985 1991 - Mar lastSun 2:00s 1:00 S 566# 567Rule Russia 1992 only - Mar lastSat 23:00 1:00 S 568Rule Russia 1992 only - Sep lastSat 23:00 0 - 569Rule Russia 1993 2010 - Mar lastSun 2:00s 1:00 S 570Rule Russia 1993 1995 - Sep lastSun 2:00s 0 - 571Rule Russia 1996 2010 - Oct lastSun 2:00s 0 - 572 573# From Alexander Krivenyshev (2011-06-14): 574# According to Kremlin press service, Russian President Dmitry Medvedev 575# signed a federal law "On calculation of time" on June 9, 2011. 576# According to the law Russia is abolishing daylight saving time. 577# 578# Medvedev signed a law "On the Calculation of Time" (in russian): 579# <a href="http://bmockbe.ru/events/?ID=7583"> 580# http://bmockbe.ru/events/?ID=7583 581# </a> 582# 583# Medvedev signed a law on the calculation of the time (in russian): 584# <a href="http://www.regnum.ru/news/polit/1413906.html"> 585# http://www.regnum.ru/news/polit/1413906.html 586# </a> 587 588# From Arthur David Olson (2011-06-15): 589# Take "abolishing daylight saving time" to mean that time is now considered 590# to be standard. 591 592# These are for backward compatibility with older versions. 593 594# Zone NAME GMTOFF RULES FORMAT [UNTIL] 595Zone WET 0:00 EU WE%sT 596Zone CET 1:00 C-Eur CE%sT 597Zone MET 1:00 C-Eur ME%sT 598Zone EET 2:00 EU EE%sT 599 600# Previous editions of this database used abbreviations like MET DST 601# for Central European Summer Time, but this didn't agree with common usage. 602 603# From Markus Kuhn (1996-07-12): 604# The official German names ... are 605# 606# Mitteleuropaeische Zeit (MEZ) = UTC+01:00 607# Mitteleuropaeische Sommerzeit (MESZ) = UTC+02:00 608# 609# as defined in the German Time Act (Gesetz ueber die Zeitbestimmung (ZeitG), 610# 1978-07-25, Bundesgesetzblatt, Jahrgang 1978, Teil I, S. 1110-1111).... 611# I wrote ... to the German Federal Physical-Technical Institution 612# 613# Physikalisch-Technische Bundesanstalt (PTB) 614# Laboratorium 4.41 "Zeiteinheit" 615# Postfach 3345 616# D-38023 Braunschweig 617# phone: +49 531 592-0 618# 619# ... I received today an answer letter from Dr. Peter Hetzel, head of the PTB 620# department for time and frequency transmission. He explained that the 621# PTB translates MEZ and MESZ into English as 622# 623# Central European Time (CET) = UTC+01:00 624# Central European Summer Time (CEST) = UTC+02:00 625 626 627# Albania 628# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 629Rule Albania 1940 only - Jun 16 0:00 1:00 S 630Rule Albania 1942 only - Nov 2 3:00 0 - 631Rule Albania 1943 only - Mar 29 2:00 1:00 S 632Rule Albania 1943 only - Apr 10 3:00 0 - 633Rule Albania 1974 only - May 4 0:00 1:00 S 634Rule Albania 1974 only - Oct 2 0:00 0 - 635Rule Albania 1975 only - May 1 0:00 1:00 S 636Rule Albania 1975 only - Oct 2 0:00 0 - 637Rule Albania 1976 only - May 2 0:00 1:00 S 638Rule Albania 1976 only - Oct 3 0:00 0 - 639Rule Albania 1977 only - May 8 0:00 1:00 S 640Rule Albania 1977 only - Oct 2 0:00 0 - 641Rule Albania 1978 only - May 6 0:00 1:00 S 642Rule Albania 1978 only - Oct 1 0:00 0 - 643Rule Albania 1979 only - May 5 0:00 1:00 S 644Rule Albania 1979 only - Sep 30 0:00 0 - 645Rule Albania 1980 only - May 3 0:00 1:00 S 646Rule Albania 1980 only - Oct 4 0:00 0 - 647Rule Albania 1981 only - Apr 26 0:00 1:00 S 648Rule Albania 1981 only - Sep 27 0:00 0 - 649Rule Albania 1982 only - May 2 0:00 1:00 S 650Rule Albania 1982 only - Oct 3 0:00 0 - 651Rule Albania 1983 only - Apr 18 0:00 1:00 S 652Rule Albania 1983 only - Oct 1 0:00 0 - 653Rule Albania 1984 only - Apr 1 0:00 1:00 S 654# Zone NAME GMTOFF RULES FORMAT [UNTIL] 655Zone Europe/Tirane 1:19:20 - LMT 1914 656 1:00 - CET 1940 Jun 16 657 1:00 Albania CE%sT 1984 Jul 658 1:00 EU CE%sT 659 660# Andorra 661# Zone NAME GMTOFF RULES FORMAT [UNTIL] 662Zone Europe/Andorra 0:06:04 - LMT 1901 663 0:00 - WET 1946 Sep 30 664 1:00 - CET 1985 Mar 31 2:00 665 1:00 EU CE%sT 666 667# Austria 668 669# From Paul Eggert (2006-03-22): Shanks & Pottenger give 1918-06-16 and 670# 1945-11-18, but the Austrian Federal Office of Metrology and 671# Surveying (BEV) gives 1918-09-16 and for Vienna gives the "alleged" 672# date of 1945-04-12 with no time. For the 1980-04-06 transition 673# Shanks & Pottenger give 02:00, the BEV 00:00. Go with the BEV, 674# and guess 02:00 for 1945-04-12. 675 676# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 677Rule Austria 1920 only - Apr 5 2:00s 1:00 S 678Rule Austria 1920 only - Sep 13 2:00s 0 - 679Rule Austria 1946 only - Apr 14 2:00s 1:00 S 680Rule Austria 1946 1948 - Oct Sun>=1 2:00s 0 - 681Rule Austria 1947 only - Apr 6 2:00s 1:00 S 682Rule Austria 1948 only - Apr 18 2:00s 1:00 S 683Rule Austria 1980 only - Apr 6 0:00 1:00 S 684Rule Austria 1980 only - Sep 28 0:00 0 - 685# Zone NAME GMTOFF RULES FORMAT [UNTIL] 686Zone Europe/Vienna 1:05:20 - LMT 1893 Apr 687 1:00 C-Eur CE%sT 1920 688 1:00 Austria CE%sT 1940 Apr 1 2:00s 689 1:00 C-Eur CE%sT 1945 Apr 2 2:00s 690 1:00 1:00 CEST 1945 Apr 12 2:00s 691 1:00 - CET 1946 692 1:00 Austria CE%sT 1981 693 1:00 EU CE%sT 694 695# Belarus 696# From Yauhen Kharuzhy (2011-09-16): 697# By latest Belarus government act Europe/Minsk timezone was changed to 698# GMT+3 without DST (was GMT+2 with DST). 699# 700# Sources (Russian language): 701# 1. 702# <a href="http://www.belta.by/ru/all_news/society/V-Belarusi-otmenjaetsja-perexod-na-sezonnoe-vremja_i_572952.html"> 703# http://www.belta.by/ru/all_news/society/V-Belarusi-otmenjaetsja-perexod-na-sezonnoe-vremja_i_572952.html 704# </a> 705# 2. 706# <a href="http://naviny.by/rubrics/society/2011/09/16/ic_articles_116_175144/"> 707# http://naviny.by/rubrics/society/2011/09/16/ic_articles_116_175144/ 708# </a> 709# 3. 710# <a href="http://news.tut.by/society/250578.html"> 711# http://news.tut.by/society/250578.html 712# </a> 713# Zone NAME GMTOFF RULES FORMAT [UNTIL] 714Zone Europe/Minsk 1:50:16 - LMT 1880 715 1:50 - MMT 1924 May 2 # Minsk Mean Time 716 2:00 - EET 1930 Jun 21 717 3:00 - MSK 1941 Jun 28 718 1:00 C-Eur CE%sT 1944 Jul 3 719 3:00 Russia MSK/MSD 1990 720 3:00 - MSK 1991 Mar 31 2:00s 721 2:00 1:00 EEST 1991 Sep 29 2:00s 722 2:00 - EET 1992 Mar 29 0:00s 723 2:00 1:00 EEST 1992 Sep 27 0:00s 724 2:00 Russia EE%sT 2011 Mar 27 2:00s 725 3:00 - FET # Further-eastern European Time 726 727# Belgium 728# 729# From Paul Eggert (1997-07-02): 730# Entries from 1918 through 1991 are taken from: 731# Annuaire de L'Observatoire Royal de Belgique, 732# Avenue Circulaire, 3, B-1180 BRUXELLES, CLVIIe annee, 1991 733# (Imprimerie HAYEZ, s.p.r.l., Rue Fin, 4, 1080 BRUXELLES, MCMXC), 734# pp 8-9. 735# LMT before 1892 was 0:17:30, according to the official journal of Belgium: 736# Moniteur Belge, Samedi 30 Avril 1892, N.121. 737# Thanks to Pascal Delmoitie for these references. 738# The 1918 rules are listed for completeness; they apply to unoccupied Belgium. 739# Assume Brussels switched to WET in 1918 when the armistice took effect. 740# 741# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 742Rule Belgium 1918 only - Mar 9 0:00s 1:00 S 743Rule Belgium 1918 1919 - Oct Sat>=1 23:00s 0 - 744Rule Belgium 1919 only - Mar 1 23:00s 1:00 S 745Rule Belgium 1920 only - Feb 14 23:00s 1:00 S 746Rule Belgium 1920 only - Oct 23 23:00s 0 - 747Rule Belgium 1921 only - Mar 14 23:00s 1:00 S 748Rule Belgium 1921 only - Oct 25 23:00s 0 - 749Rule Belgium 1922 only - Mar 25 23:00s 1:00 S 750Rule Belgium 1922 1927 - Oct Sat>=1 23:00s 0 - 751Rule Belgium 1923 only - Apr 21 23:00s 1:00 S 752Rule Belgium 1924 only - Mar 29 23:00s 1:00 S 753Rule Belgium 1925 only - Apr 4 23:00s 1:00 S 754# DSH writes that a royal decree of 1926-02-22 specified the Sun following 3rd 755# Sat in Apr (except if it's Easter, in which case it's one Sunday earlier), 756# to Sun following 1st Sat in Oct, and that a royal decree of 1928-09-15 757# changed the transition times to 02:00 GMT. 758Rule Belgium 1926 only - Apr 17 23:00s 1:00 S 759Rule Belgium 1927 only - Apr 9 23:00s 1:00 S 760Rule Belgium 1928 only - Apr 14 23:00s 1:00 S 761Rule Belgium 1928 1938 - Oct Sun>=2 2:00s 0 - 762Rule Belgium 1929 only - Apr 21 2:00s 1:00 S 763Rule Belgium 1930 only - Apr 13 2:00s 1:00 S 764Rule Belgium 1931 only - Apr 19 2:00s 1:00 S 765Rule Belgium 1932 only - Apr 3 2:00s 1:00 S 766Rule Belgium 1933 only - Mar 26 2:00s 1:00 S 767Rule Belgium 1934 only - Apr 8 2:00s 1:00 S 768Rule Belgium 1935 only - Mar 31 2:00s 1:00 S 769Rule Belgium 1936 only - Apr 19 2:00s 1:00 S 770Rule Belgium 1937 only - Apr 4 2:00s 1:00 S 771Rule Belgium 1938 only - Mar 27 2:00s 1:00 S 772Rule Belgium 1939 only - Apr 16 2:00s 1:00 S 773Rule Belgium 1939 only - Nov 19 2:00s 0 - 774Rule Belgium 1940 only - Feb 25 2:00s 1:00 S 775Rule Belgium 1944 only - Sep 17 2:00s 0 - 776Rule Belgium 1945 only - Apr 2 2:00s 1:00 S 777Rule Belgium 1945 only - Sep 16 2:00s 0 - 778Rule Belgium 1946 only - May 19 2:00s 1:00 S 779Rule Belgium 1946 only - Oct 7 2:00s 0 - 780# Zone NAME GMTOFF RULES FORMAT [UNTIL] 781Zone Europe/Brussels 0:17:30 - LMT 1880 782 0:17:30 - BMT 1892 May 1 12:00 # Brussels MT 783 0:00 - WET 1914 Nov 8 784 1:00 - CET 1916 May 1 0:00 785 1:00 C-Eur CE%sT 1918 Nov 11 11:00u 786 0:00 Belgium WE%sT 1940 May 20 2:00s 787 1:00 C-Eur CE%sT 1944 Sep 3 788 1:00 Belgium CE%sT 1977 789 1:00 EU CE%sT 790 791# Bosnia and Herzegovina 792# see Serbia 793 794# Bulgaria 795# 796# From Plamen Simenov via Steffen Thorsen (1999-09-09): 797# A document of Government of Bulgaria (No.94/1997) says: 798# EET --> EETDST is in 03:00 Local time in last Sunday of March ... 799# EETDST --> EET is in 04:00 Local time in last Sunday of October 800# 801# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 802Rule Bulg 1979 only - Mar 31 23:00 1:00 S 803Rule Bulg 1979 only - Oct 1 1:00 0 - 804Rule Bulg 1980 1982 - Apr Sat>=1 23:00 1:00 S 805Rule Bulg 1980 only - Sep 29 1:00 0 - 806Rule Bulg 1981 only - Sep 27 2:00 0 - 807# Zone NAME GMTOFF RULES FORMAT [UNTIL] 808Zone Europe/Sofia 1:33:16 - LMT 1880 809 1:56:56 - IMT 1894 Nov 30 # Istanbul MT? 810 2:00 - EET 1942 Nov 2 3:00 811 1:00 C-Eur CE%sT 1945 812 1:00 - CET 1945 Apr 2 3:00 813 2:00 - EET 1979 Mar 31 23:00 814 2:00 Bulg EE%sT 1982 Sep 26 2:00 815 2:00 C-Eur EE%sT 1991 816 2:00 E-Eur EE%sT 1997 817 2:00 EU EE%sT 818 819# Croatia 820# see Serbia 821 822# Cyprus 823# Please see the `asia' file for Asia/Nicosia. 824 825# Czech Republic 826# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 827Rule Czech 1945 only - Apr 8 2:00s 1:00 S 828Rule Czech 1945 only - Nov 18 2:00s 0 - 829Rule Czech 1946 only - May 6 2:00s 1:00 S 830Rule Czech 1946 1949 - Oct Sun>=1 2:00s 0 - 831Rule Czech 1947 only - Apr 20 2:00s 1:00 S 832Rule Czech 1948 only - Apr 18 2:00s 1:00 S 833Rule Czech 1949 only - Apr 9 2:00s 1:00 S 834# Zone NAME GMTOFF RULES FORMAT [UNTIL] 835Zone Europe/Prague 0:57:44 - LMT 1850 836 0:57:44 - PMT 1891 Oct # Prague Mean Time 837 1:00 C-Eur CE%sT 1944 Sep 17 2:00s 838 1:00 Czech CE%sT 1979 839 1:00 EU CE%sT 840 841# Denmark, Faroe Islands, and Greenland 842 843# From Jesper Norgaard Welen (2005-04-26): 844# http://www.hum.aau.dk/~poe/tid/tine/DanskTid.htm says that the law 845# [introducing standard time] was in effect from 1894-01-01.... 846# The page http://www.retsinfo.dk/_GETDOCI_/ACCN/A18930008330-REGL 847# confirms this, and states that the law was put forth 1893-03-29. 848# 849# The EU treaty with effect from 1973: 850# http://www.retsinfo.dk/_GETDOCI_/ACCN/A19722110030-REGL 851# 852# This provoked a new law from 1974 to make possible summer time changes 853# in subsequenet decrees with the law 854# http://www.retsinfo.dk/_GETDOCI_/ACCN/A19740022330-REGL 855# 856# It seems however that no decree was set forward until 1980. I have 857# not found any decree, but in another related law, the effecting DST 858# changes are stated explicitly to be from 1980-04-06 at 02:00 to 859# 1980-09-28 at 02:00. If this is true, this differs slightly from 860# the EU rule in that DST runs to 02:00, not 03:00. We don't know 861# when Denmark began using the EU rule correctly, but we have only 862# confirmation of the 1980-time, so I presume it was correct in 1981: 863# The law is about the management of the extra hour, concerning 864# working hours reported and effect on obligatory-rest rules (which 865# was suspended on that night): 866# http://www.retsinfo.dk/_GETDOCI_/ACCN/C19801120554-REGL 867 868# From Jesper Norgaard Welen (2005-06-11): 869# The Herning Folkeblad (1980-09-26) reported that the night between 870# Saturday and Sunday the clock is set back from three to two. 871 872# From Paul Eggert (2005-06-11): 873# Hence the "02:00" of the 1980 law refers to standard time, not 874# wall-clock time, and so the EU rules were in effect in 1980. 875 876# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 877Rule Denmark 1916 only - May 14 23:00 1:00 S 878Rule Denmark 1916 only - Sep 30 23:00 0 - 879Rule Denmark 1940 only - May 15 0:00 1:00 S 880Rule Denmark 1945 only - Apr 2 2:00s 1:00 S 881Rule Denmark 1945 only - Aug 15 2:00s 0 - 882Rule Denmark 1946 only - May 1 2:00s 1:00 S 883Rule Denmark 1946 only - Sep 1 2:00s 0 - 884Rule Denmark 1947 only - May 4 2:00s 1:00 S 885Rule Denmark 1947 only - Aug 10 2:00s 0 - 886Rule Denmark 1948 only - May 9 2:00s 1:00 S 887Rule Denmark 1948 only - Aug 8 2:00s 0 - 888# 889# Zone NAME GMTOFF RULES FORMAT [UNTIL] 890Zone Europe/Copenhagen 0:50:20 - LMT 1890 891 0:50:20 - CMT 1894 Jan 1 # Copenhagen MT 892 1:00 Denmark CE%sT 1942 Nov 2 2:00s 893 1:00 C-Eur CE%sT 1945 Apr 2 2:00 894 1:00 Denmark CE%sT 1980 895 1:00 EU CE%sT 896Zone Atlantic/Faroe -0:27:04 - LMT 1908 Jan 11 # Torshavn 897 0:00 - WET 1981 898 0:00 EU WE%sT 899# 900# From Paul Eggert (2004-10-31): 901# During World War II, Germany maintained secret manned weather stations in 902# East Greenland and Franz Josef Land, but we don't know their time zones. 903# My source for this is Wilhelm Dege's book mentioned under Svalbard. 904# 905# From Paul Eggert (2006-03-22): 906# Greenland joined the EU as part of Denmark, obtained home rule on 1979-05-01, 907# and left the EU on 1985-02-01. It therefore should have been using EU 908# rules at least through 1984. Shanks & Pottenger say Scoresbysund and Godthab 909# used C-Eur rules after 1980, but IATA SSIM (1991/1996) says they use EU 910# rules since at least 1991. Assume EU rules since 1980. 911 912# From Gwillin Law (2001-06-06), citing 913# <http://www.statkart.no/efs/efshefter/2001/efs5-2001.pdf> (2001-03-15), 914# and with translations corrected by Steffen Thorsen: 915# 916# Greenland has four local times, and the relation to UTC 917# is according to the following time line: 918# 919# The military zone near Thule UTC-4 920# Standard Greenland time UTC-3 921# Scoresbysund UTC-1 922# Danmarkshavn UTC 923# 924# In the military area near Thule and in Danmarkshavn DST will not be 925# introduced. 926 927# From Rives McDow (2001-11-01): 928# 929# I correspond regularly with the Dansk Polarcenter, and wrote them at 930# the time to clarify the situation in Thule. Unfortunately, I have 931# not heard back from them regarding my recent letter. [But I have 932# info from earlier correspondence.] 933# 934# According to the center, a very small local time zone around Thule 935# Air Base keeps the time according to UTC-4, implementing daylight 936# savings using North America rules, changing the time at 02:00 local time.... 937# 938# The east coast of Greenland north of the community of Scoresbysund 939# uses UTC in the same way as in Iceland, year round, with no dst. 940# There are just a few stations on this coast, including the 941# Danmarkshavn ICAO weather station mentioned in your September 29th 942# email. The other stations are two sledge patrol stations in 943# Mestersvig and Daneborg, the air force base at Station Nord, and the 944# DPC research station at Zackenberg. 945# 946# Scoresbysund and two small villages nearby keep time UTC-1 and use 947# the same daylight savings time period as in West Greenland (Godthab). 948# 949# The rest of Greenland, including Godthab (this area, although it 950# includes central Greenland, is known as west Greenland), keeps time 951# UTC-3, with daylight savings methods according to European rules. 952# 953# It is common procedure to use UTC 0 in the wilderness of East and 954# North Greenland, because it is mainly Icelandic aircraft operators 955# maintaining traffic in these areas. However, the official status of 956# this area is that it sticks with Godthab time. This area might be 957# considered a dual time zone in some respects because of this. 958 959# From Rives McDow (2001-11-19): 960# I heard back from someone stationed at Thule; the time change took place 961# there at 2:00 AM. 962 963# From Paul Eggert (2006-03-22): 964# From 1997 on the CIA map shows Danmarkshavn on GMT; 965# the 1995 map as like Godthab. 966# For lack of better info, assume they were like Godthab before 1996. 967# startkart.no says Thule does not observe DST, but this is clearly an error, 968# so go with Shanks & Pottenger for Thule transitions until this year. 969# For 2007 on assume Thule will stay in sync with US DST rules. 970# 971# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 972Rule Thule 1991 1992 - Mar lastSun 2:00 1:00 D 973Rule Thule 1991 1992 - Sep lastSun 2:00 0 S 974Rule Thule 1993 2006 - Apr Sun>=1 2:00 1:00 D 975Rule Thule 1993 2006 - Oct lastSun 2:00 0 S 976Rule Thule 2007 max - Mar Sun>=8 2:00 1:00 D 977Rule Thule 2007 max - Nov Sun>=1 2:00 0 S 978# 979# Zone NAME GMTOFF RULES FORMAT [UNTIL] 980Zone America/Danmarkshavn -1:14:40 - LMT 1916 Jul 28 981 -3:00 - WGT 1980 Apr 6 2:00 982 -3:00 EU WG%sT 1996 983 0:00 - GMT 984Zone America/Scoresbysund -1:27:52 - LMT 1916 Jul 28 # Ittoqqortoormiit 985 -2:00 - CGT 1980 Apr 6 2:00 986 -2:00 C-Eur CG%sT 1981 Mar 29 987 -1:00 EU EG%sT 988Zone America/Godthab -3:26:56 - LMT 1916 Jul 28 # Nuuk 989 -3:00 - WGT 1980 Apr 6 2:00 990 -3:00 EU WG%sT 991Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik air base 992 -4:00 Thule A%sT 993 994# Estonia 995# From Peter Ilieve (1994-10-15): 996# A relative in Tallinn confirms the accuracy of the data for 1989 onwards 997# [through 1994] and gives the legal authority for it, 998# a regulation of the Government of Estonia, No. 111 of 1989.... 999# 1000# From Peter Ilieve (1996-10-28): 1001# [IATA SSIM (1992/1996) claims that the Baltic republics switch at 01:00s, 1002# but a relative confirms that Estonia still switches at 02:00s, writing:] 1003# ``I do not [know] exactly but there are some little different 1004# (confusing) rules for International Air and Railway Transport Schedules 1005# conversion in Sunday connected with end of summer time in Estonia.... 1006# A discussion is running about the summer time efficiency and effect on 1007# human physiology. It seems that Estonia maybe will not change to 1008# summer time next spring.'' 1009 1010# From Peter Ilieve (1998-11-04), heavily edited: 1011# <a href="http://trip.rk.ee/cgi-bin/thw?${BASE}=akt&${OOHTML}=rtd&TA=1998&TO=1&AN=1390"> 1012# The 1998-09-22 Estonian time law 1013# </a> 1014# refers to the Eighth Directive and cites the association agreement between 1015# the EU and Estonia, ratified by the Estonian law (RT II 1995, 22--27, 120). 1016# 1017# I also asked [my relative] whether they use any standard abbreviation 1018# for their standard and summer times. He says no, they use "suveaeg" 1019# (summer time) and "talveaeg" (winter time). 1020 1021# From <a href="http://www.baltictimes.com/">The Baltic Times</a> (1999-09-09) 1022# via Steffen Thorsen: 1023# This year will mark the last time Estonia shifts to summer time, 1024# a council of the ruling coalition announced Sept. 6.... 1025# But what this could mean for Estonia's chances of joining the European 1026# Union are still unclear. In 1994, the EU declared summer time compulsory 1027# for all member states until 2001. Brussels has yet to decide what to do 1028# after that. 1029 1030# From Mart Oruaas (2000-01-29): 1031# Regulation no. 301 (1999-10-12) obsoletes previous regulation 1032# no. 206 (1998-09-22) and thus sticks Estonia to +02:00 GMT for all 1033# the year round. The regulation is effective 1999-11-01. 1034 1035# From Toomas Soome (2002-02-21): 1036# The Estonian government has changed once again timezone politics. 1037# Now we are using again EU rules. 1038# 1039# From Urmet Jaanes (2002-03-28): 1040# The legislative reference is Government decree No. 84 on 2002-02-21. 1041 1042# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1043Zone Europe/Tallinn 1:39:00 - LMT 1880 1044 1:39:00 - TMT 1918 Feb # Tallinn Mean Time 1045 1:00 C-Eur CE%sT 1919 Jul 1046 1:39:00 - TMT 1921 May 1047 2:00 - EET 1940 Aug 6 1048 3:00 - MSK 1941 Sep 15 1049 1:00 C-Eur CE%sT 1944 Sep 22 1050 3:00 Russia MSK/MSD 1989 Mar 26 2:00s 1051 2:00 1:00 EEST 1989 Sep 24 2:00s 1052 2:00 C-Eur EE%sT 1998 Sep 22 1053 2:00 EU EE%sT 1999 Nov 1 1054 2:00 - EET 2002 Feb 21 1055 2:00 EU EE%sT 1056 1057# Finland 1058 1059# From Hannu Strang (1994-09-25 06:03:37 UTC): 1060# Well, here in Helsinki we're just changing from summer time to regular one, 1061# and it's supposed to change at 4am... 1062 1063# From Janne Snabb (2010-0715): 1064# 1065# I noticed that the Finland data is not accurate for years 1981 and 1982. 1066# During these two first trial years the DST adjustment was made one hour 1067# earlier than in forthcoming years. Starting 1983 the adjustment was made 1068# according to the central European standards. 1069# 1070# This is documented in Heikki Oja: Aikakirja 2007, published by The Almanac 1071# Office of University of Helsinki, ISBN 952-10-3221-9, available online (in 1072# Finnish) at 1073# 1074# <a href="http://almanakka.helsinki.fi/aikakirja/Aikakirja2007kokonaan.pdf"> 1075# http://almanakka.helsinki.fi/aikakirja/Aikakirja2007kokonaan.pdf 1076# </a> 1077# 1078# Page 105 (56 in PDF version) has a handy table of all past daylight savings 1079# transitions. It is easy enough to interpret without Finnish skills. 1080# 1081# This is also confirmed by Finnish Broadcasting Company's archive at: 1082# 1083# <a href="http://www.yle.fi/elavaarkisto/?s=s&g=1&ag=5&t=&a=3401"> 1084# http://www.yle.fi/elavaarkisto/?s=s&g=1&ag=5&t=&a=3401 1085# </a> 1086# 1087# The news clip from 1981 says that "the time between 2 and 3 o'clock does not 1088# exist tonight." 1089 1090# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1091Rule Finland 1942 only - Apr 3 0:00 1:00 S 1092Rule Finland 1942 only - Oct 3 0:00 0 - 1093Rule Finland 1981 1982 - Mar lastSun 2:00 1:00 S 1094Rule Finland 1981 1982 - Sep lastSun 3:00 0 - 1095# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1096Zone Europe/Helsinki 1:39:52 - LMT 1878 May 31 1097 1:39:52 - HMT 1921 May # Helsinki Mean Time 1098 2:00 Finland EE%sT 1983 1099 2:00 EU EE%sT 1100 1101# Aaland Is 1102Link Europe/Helsinki Europe/Mariehamn 1103 1104 1105# France 1106 1107# From Ciro Discepolo (2000-12-20): 1108# 1109# Henri Le Corre, Regimes Horaires pour le monde entier, Editions 1110# Traditionnelles - Paris 2 books, 1993 1111# 1112# Gabriel, Traite de l'heure dans le monde, Guy Tredaniel editeur, 1113# Paris, 1991 1114# 1115# Francoise Gauquelin, Problemes de l'heure resolus en astrologie, 1116# Guy tredaniel, Paris 1987 1117 1118 1119# 1120# Shank & Pottenger seem to use `24:00' ambiguously; resolve it with Whitman. 1121# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1122Rule France 1916 only - Jun 14 23:00s 1:00 S 1123Rule France 1916 1919 - Oct Sun>=1 23:00s 0 - 1124Rule France 1917 only - Mar 24 23:00s 1:00 S 1125Rule France 1918 only - Mar 9 23:00s 1:00 S 1126Rule France 1919 only - Mar 1 23:00s 1:00 S 1127Rule France 1920 only - Feb 14 23:00s 1:00 S 1128Rule France 1920 only - Oct 23 23:00s 0 - 1129Rule France 1921 only - Mar 14 23:00s 1:00 S 1130Rule France 1921 only - Oct 25 23:00s 0 - 1131Rule France 1922 only - Mar 25 23:00s 1:00 S 1132# DSH writes that a law of 1923-05-24 specified 3rd Sat in Apr at 23:00 to 1st 1133# Sat in Oct at 24:00; and that in 1930, because of Easter, the transitions 1134# were Apr 12 and Oct 5. Go with Shanks & Pottenger. 1135Rule France 1922 1938 - Oct Sat>=1 23:00s 0 - 1136Rule France 1923 only - May 26 23:00s 1:00 S 1137Rule France 1924 only - Mar 29 23:00s 1:00 S 1138Rule France 1925 only - Apr 4 23:00s 1:00 S 1139Rule France 1926 only - Apr 17 23:00s 1:00 S 1140Rule France 1927 only - Apr 9 23:00s 1:00 S 1141Rule France 1928 only - Apr 14 23:00s 1:00 S 1142Rule France 1929 only - Apr 20 23:00s 1:00 S 1143Rule France 1930 only - Apr 12 23:00s 1:00 S 1144Rule France 1931 only - Apr 18 23:00s 1:00 S 1145Rule France 1932 only - Apr 2 23:00s 1:00 S 1146Rule France 1933 only - Mar 25 23:00s 1:00 S 1147Rule France 1934 only - Apr 7 23:00s 1:00 S 1148Rule France 1935 only - Mar 30 23:00s 1:00 S 1149Rule France 1936 only - Apr 18 23:00s 1:00 S 1150Rule France 1937 only - Apr 3 23:00s 1:00 S 1151Rule France 1938 only - Mar 26 23:00s 1:00 S 1152Rule France 1939 only - Apr 15 23:00s 1:00 S 1153Rule France 1939 only - Nov 18 23:00s 0 - 1154Rule France 1940 only - Feb 25 2:00 1:00 S 1155# The French rules for 1941-1944 were not used in Paris, but Shanks & Pottenger 1156# write that they were used in Monaco and in many French locations. 1157# Le Corre writes that the upper limit of the free zone was Arneguy, Orthez, 1158# Mont-de-Marsan, Bazas, Langon, Lamotte-Montravel, Marouil, La 1159# Rochefoucault, Champagne-Mouton, La Roche-Posay, La Haye-Descartes, 1160# Loches, Montrichard, Vierzon, Bourges, Moulins, Digoin, 1161# Paray-le-Monial, Montceau-les-Mines, Chalons-sur-Saone, Arbois, 1162# Dole, Morez, St-Claude, and Collonges (Haute-Savoie). 1163Rule France 1941 only - May 5 0:00 2:00 M # Midsummer 1164# Shanks & Pottenger say this transition occurred at Oct 6 1:00, 1165# but go with Denis Excoffier (1997-12-12), 1166# who quotes the Ephemerides Astronomiques for 1998 from Bureau des Longitudes 1167# as saying 5/10/41 22hUT. 1168Rule France 1941 only - Oct 6 0:00 1:00 S 1169Rule France 1942 only - Mar 9 0:00 2:00 M 1170Rule France 1942 only - Nov 2 3:00 1:00 S 1171Rule France 1943 only - Mar 29 2:00 2:00 M 1172Rule France 1943 only - Oct 4 3:00 1:00 S 1173Rule France 1944 only - Apr 3 2:00 2:00 M 1174Rule France 1944 only - Oct 8 1:00 1:00 S 1175Rule France 1945 only - Apr 2 2:00 2:00 M 1176Rule France 1945 only - Sep 16 3:00 0 - 1177# Shanks & Pottenger give Mar 28 2:00 and Sep 26 3:00; 1178# go with Excoffier's 28/3/76 0hUT and 25/9/76 23hUT. 1179Rule France 1976 only - Mar 28 1:00 1:00 S 1180Rule France 1976 only - Sep 26 1:00 0 - 1181# Shanks & Pottenger give 0:09:20 for Paris Mean Time, and Whitman 0:09:05, 1182# but Howse quotes the actual French legislation as saying 0:09:21. 1183# Go with Howse. Howse writes that the time in France was officially based 1184# on PMT-0:09:21 until 1978-08-09, when the time base finally switched to UTC. 1185# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1186Zone Europe/Paris 0:09:21 - LMT 1891 Mar 15 0:01 1187 0:09:21 - PMT 1911 Mar 11 0:01 # Paris MT 1188# Shanks & Pottenger give 1940 Jun 14 0:00; go with Excoffier and Le Corre. 1189 0:00 France WE%sT 1940 Jun 14 23:00 1190# Le Corre says Paris stuck with occupied-France time after the liberation; 1191# go with Shanks & Pottenger. 1192 1:00 C-Eur CE%sT 1944 Aug 25 1193 0:00 France WE%sT 1945 Sep 16 3:00 1194 1:00 France CE%sT 1977 1195 1:00 EU CE%sT 1196 1197# Germany 1198 1199# From Markus Kuhn (1998-09-29): 1200# The German time zone web site by the Physikalisch-Technische 1201# Bundesanstalt contains DST information back to 1916. 1202# [See tz-link.htm for the URL.] 1203 1204# From Joerg Schilling (2002-10-23): 1205# In 1945, Berlin was switched to Moscow Summer time (GMT+4) by 1206# <a href="http://www.dhm.de/lemo/html/biografien/BersarinNikolai/"> 1207# General [Nikolai] Bersarin</a>. 1208 1209# From Paul Eggert (2003-03-08): 1210# <a href="http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee8525662300459099/defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf"> 1211# http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee8525662300459099/defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf 1212# </a> 1213# says that Bersarin issued an order to use Moscow time on May 20. 1214# However, Moscow did not observe daylight saving in 1945, so 1215# this was equivalent to CEMT (GMT+3), not GMT+4. 1216 1217 1218# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1219Rule Germany 1946 only - Apr 14 2:00s 1:00 S 1220Rule Germany 1946 only - Oct 7 2:00s 0 - 1221Rule Germany 1947 1949 - Oct Sun>=1 2:00s 0 - 1222# http://www.ptb.de/de/org/4/44/441/salt.htm says the following transition 1223# occurred at 3:00 MEZ, not the 2:00 MEZ given in Shanks & Pottenger. 1224# Go with the PTB. 1225Rule Germany 1947 only - Apr 6 3:00s 1:00 S 1226Rule Germany 1947 only - May 11 2:00s 2:00 M 1227Rule Germany 1947 only - Jun 29 3:00 1:00 S 1228Rule Germany 1948 only - Apr 18 2:00s 1:00 S 1229Rule Germany 1949 only - Apr 10 2:00s 1:00 S 1230 1231Rule SovietZone 1945 only - May 24 2:00 2:00 M # Midsummer 1232Rule SovietZone 1945 only - Sep 24 3:00 1:00 S 1233Rule SovietZone 1945 only - Nov 18 2:00s 0 - 1234 1235# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1236Zone Europe/Berlin 0:53:28 - LMT 1893 Apr 1237 1:00 C-Eur CE%sT 1945 May 24 2:00 1238 1:00 SovietZone CE%sT 1946 1239 1:00 Germany CE%sT 1980 1240 1:00 EU CE%sT 1241 1242# Georgia 1243# Please see the "asia" file for Asia/Tbilisi. 1244# Herodotus (Histories, IV.45) says Georgia north of the Phasis (now Rioni) 1245# is in Europe. Our reference location Tbilisi is in the Asian part. 1246 1247# Gibraltar 1248# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1249Zone Europe/Gibraltar -0:21:24 - LMT 1880 Aug 2 0:00s 1250 0:00 GB-Eire %s 1957 Apr 14 2:00 1251 1:00 - CET 1982 1252 1:00 EU CE%sT 1253 1254# Greece 1255# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1256# Whitman gives 1932 Jul 5 - Nov 1; go with Shanks & Pottenger. 1257Rule Greece 1932 only - Jul 7 0:00 1:00 S 1258Rule Greece 1932 only - Sep 1 0:00 0 - 1259# Whitman gives 1941 Apr 25 - ?; go with Shanks & Pottenger. 1260Rule Greece 1941 only - Apr 7 0:00 1:00 S 1261# Whitman gives 1942 Feb 2 - ?; go with Shanks & Pottenger. 1262Rule Greece 1942 only - Nov 2 3:00 0 - 1263Rule Greece 1943 only - Mar 30 0:00 1:00 S 1264Rule Greece 1943 only - Oct 4 0:00 0 - 1265# Whitman gives 1944 Oct 3 - Oct 31; go with Shanks & Pottenger. 1266Rule Greece 1952 only - Jul 1 0:00 1:00 S 1267Rule Greece 1952 only - Nov 2 0:00 0 - 1268Rule Greece 1975 only - Apr 12 0:00s 1:00 S 1269Rule Greece 1975 only - Nov 26 0:00s 0 - 1270Rule Greece 1976 only - Apr 11 2:00s 1:00 S 1271Rule Greece 1976 only - Oct 10 2:00s 0 - 1272Rule Greece 1977 1978 - Apr Sun>=1 2:00s 1:00 S 1273Rule Greece 1977 only - Sep 26 2:00s 0 - 1274Rule Greece 1978 only - Sep 24 4:00 0 - 1275Rule Greece 1979 only - Apr 1 9:00 1:00 S 1276Rule Greece 1979 only - Sep 29 2:00 0 - 1277Rule Greece 1980 only - Apr 1 0:00 1:00 S 1278Rule Greece 1980 only - Sep 28 0:00 0 - 1279# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1280Zone Europe/Athens 1:34:52 - LMT 1895 Sep 14 1281 1:34:52 - AMT 1916 Jul 28 0:01 # Athens MT 1282 2:00 Greece EE%sT 1941 Apr 30 1283 1:00 Greece CE%sT 1944 Apr 4 1284 2:00 Greece EE%sT 1981 1285 # Shanks & Pottenger say it switched to C-Eur in 1981; 1286 # go with EU instead, since Greece joined it on Jan 1. 1287 2:00 EU EE%sT 1288 1289# Hungary 1290# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1291Rule Hungary 1918 only - Apr 1 3:00 1:00 S 1292Rule Hungary 1918 only - Sep 29 3:00 0 - 1293Rule Hungary 1919 only - Apr 15 3:00 1:00 S 1294Rule Hungary 1919 only - Sep 15 3:00 0 - 1295Rule Hungary 1920 only - Apr 5 3:00 1:00 S 1296Rule Hungary 1920 only - Sep 30 3:00 0 - 1297Rule Hungary 1945 only - May 1 23:00 1:00 S 1298Rule Hungary 1945 only - Nov 3 0:00 0 - 1299Rule Hungary 1946 only - Mar 31 2:00s 1:00 S 1300Rule Hungary 1946 1949 - Oct Sun>=1 2:00s 0 - 1301Rule Hungary 1947 1949 - Apr Sun>=4 2:00s 1:00 S 1302Rule Hungary 1950 only - Apr 17 2:00s 1:00 S 1303Rule Hungary 1950 only - Oct 23 2:00s 0 - 1304Rule Hungary 1954 1955 - May 23 0:00 1:00 S 1305Rule Hungary 1954 1955 - Oct 3 0:00 0 - 1306Rule Hungary 1956 only - Jun Sun>=1 0:00 1:00 S 1307Rule Hungary 1956 only - Sep lastSun 0:00 0 - 1308Rule Hungary 1957 only - Jun Sun>=1 1:00 1:00 S 1309Rule Hungary 1957 only - Sep lastSun 3:00 0 - 1310Rule Hungary 1980 only - Apr 6 1:00 1:00 S 1311# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1312Zone Europe/Budapest 1:16:20 - LMT 1890 Oct 1313 1:00 C-Eur CE%sT 1918 1314 1:00 Hungary CE%sT 1941 Apr 6 2:00 1315 1:00 C-Eur CE%sT 1945 1316 1:00 Hungary CE%sT 1980 Sep 28 2:00s 1317 1:00 EU CE%sT 1318 1319# Iceland 1320# 1321# From Adam David (1993-11-06): 1322# The name of the timezone in Iceland for system / mail / news purposes is GMT. 1323# 1324# (1993-12-05): 1325# This material is paraphrased from the 1988 edition of the University of 1326# Iceland Almanak. 1327# 1328# From January 1st, 1908 the whole of Iceland was standardised at 1 hour 1329# behind GMT. Previously, local mean solar time was used in different parts 1330# of Iceland, the almanak had been based on Reykjavik mean solar time which 1331# was 1 hour and 28 minutes behind GMT. 1332# 1333# "first day of winter" referred to [below] means the first day of the 26 weeks 1334# of winter, according to the old icelandic calendar that dates back to the 1335# time the norsemen first settled Iceland. The first day of winter is always 1336# Saturday, but is not dependent on the Julian or Gregorian calendars. 1337# 1338# (1993-12-10): 1339# I have a reference from the Oxford Icelandic-English dictionary for the 1340# beginning of winter, which ties it to the ecclesiastical calendar (and thus 1341# to the julian/gregorian calendar) over the period in question. 1342# the winter begins on the Saturday next before St. Luke's day 1343# (old style), or on St. Luke's day, if a Saturday. 1344# St. Luke's day ought to be traceable from ecclesiastical sources. "old style" 1345# might be a reference to the Julian calendar as opposed to Gregorian, or it 1346# might mean something else (???). 1347# 1348# From Paul Eggert (2006-03-22): 1349# The Iceland Almanak, Shanks & Pottenger, and Whitman disagree on many points. 1350# We go with the Almanak, except for one claim from Shanks & Pottenger, namely 1351# that Reykavik was 21W57 from 1837 to 1908, local mean time before that. 1352# 1353# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1354Rule Iceland 1917 1918 - Feb 19 23:00 1:00 S 1355Rule Iceland 1917 only - Oct 21 1:00 0 - 1356Rule Iceland 1918 only - Nov 16 1:00 0 - 1357Rule Iceland 1939 only - Apr 29 23:00 1:00 S 1358Rule Iceland 1939 only - Nov 29 2:00 0 - 1359Rule Iceland 1940 only - Feb 25 2:00 1:00 S 1360Rule Iceland 1940 only - Nov 3 2:00 0 - 1361Rule Iceland 1941 only - Mar 2 1:00s 1:00 S 1362Rule Iceland 1941 only - Nov 2 1:00s 0 - 1363Rule Iceland 1942 only - Mar 8 1:00s 1:00 S 1364Rule Iceland 1942 only - Oct 25 1:00s 0 - 1365# 1943-1946 - first Sunday in March until first Sunday in winter 1366Rule Iceland 1943 1946 - Mar Sun>=1 1:00s 1:00 S 1367Rule Iceland 1943 1948 - Oct Sun>=22 1:00s 0 - 1368# 1947-1967 - first Sunday in April until first Sunday in winter 1369Rule Iceland 1947 1967 - Apr Sun>=1 1:00s 1:00 S 1370# 1949 Oct transition delayed by 1 week 1371Rule Iceland 1949 only - Oct 30 1:00s 0 - 1372Rule Iceland 1950 1966 - Oct Sun>=22 1:00s 0 - 1373Rule Iceland 1967 only - Oct 29 1:00s 0 - 1374# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1375Zone Atlantic/Reykjavik -1:27:24 - LMT 1837 1376 -1:27:48 - RMT 1908 # Reykjavik Mean Time? 1377 -1:00 Iceland IS%sT 1968 Apr 7 1:00s 1378 0:00 - GMT 1379 1380# Italy 1381# 1382# From Paul Eggert (2001-03-06): 1383# Sicily and Sardinia each had their own time zones from 1866 to 1893, 1384# called Palermo Time (+00:53:28) and Cagliari Time (+00:36:32). 1385# During World War II, German-controlled Italy used German time. 1386# But these events all occurred before the 1970 cutoff, 1387# so record only the time in Rome. 1388# 1389# From Paul Eggert (2006-03-22): 1390# For Italian DST we have three sources: Shanks & Pottenger, Whitman, and 1391# F. Pollastri 1392# <a href="http://toi.iriti.cnr.it/uk/ienitlt.html"> 1393# Day-light Saving Time in Italy (2006-02-03) 1394# </a> 1395# (`FP' below), taken from an Italian National Electrotechnical Institute 1396# publication. When the three sources disagree, guess who's right, as follows: 1397# 1398# year FP Shanks&P. (S) Whitman (W) Go with: 1399# 1916 06-03 06-03 24:00 06-03 00:00 FP & W 1400# 09-30 09-30 24:00 09-30 01:00 FP; guess 24:00s 1401# 1917 04-01 03-31 24:00 03-31 00:00 FP & S 1402# 09-30 09-29 24:00 09-30 01:00 FP & W 1403# 1918 03-09 03-09 24:00 03-09 00:00 FP & S 1404# 10-06 10-05 24:00 10-06 01:00 FP & W 1405# 1919 03-01 03-01 24:00 03-01 00:00 FP & S 1406# 10-04 10-04 24:00 10-04 01:00 FP; guess 24:00s 1407# 1920 03-20 03-20 24:00 03-20 00:00 FP & S 1408# 09-18 09-18 24:00 10-01 01:00 FP; guess 24:00s 1409# 1944 04-02 04-03 02:00 S (see C-Eur) 1410# 09-16 10-02 03:00 FP; guess 24:00s 1411# 1945 09-14 09-16 24:00 FP; guess 24:00s 1412# 1970 05-21 05-31 00:00 S 1413# 09-20 09-27 00:00 S 1414# 1415# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1416Rule Italy 1916 only - Jun 3 0:00s 1:00 S 1417Rule Italy 1916 only - Oct 1 0:00s 0 - 1418Rule Italy 1917 only - Apr 1 0:00s 1:00 S 1419Rule Italy 1917 only - Sep 30 0:00s 0 - 1420Rule Italy 1918 only - Mar 10 0:00s 1:00 S 1421Rule Italy 1918 1919 - Oct Sun>=1 0:00s 0 - 1422Rule Italy 1919 only - Mar 2 0:00s 1:00 S 1423Rule Italy 1920 only - Mar 21 0:00s 1:00 S 1424Rule Italy 1920 only - Sep 19 0:00s 0 - 1425Rule Italy 1940 only - Jun 15 0:00s 1:00 S 1426Rule Italy 1944 only - Sep 17 0:00s 0 - 1427Rule Italy 1945 only - Apr 2 2:00 1:00 S 1428Rule Italy 1945 only - Sep 15 0:00s 0 - 1429Rule Italy 1946 only - Mar 17 2:00s 1:00 S 1430Rule Italy 1946 only - Oct 6 2:00s 0 - 1431Rule Italy 1947 only - Mar 16 0:00s 1:00 S 1432Rule Italy 1947 only - Oct 5 0:00s 0 - 1433Rule Italy 1948 only - Feb 29 2:00s 1:00 S 1434Rule Italy 1948 only - Oct 3 2:00s 0 - 1435Rule Italy 1966 1968 - May Sun>=22 0:00 1:00 S 1436Rule Italy 1966 1969 - Sep Sun>=22 0:00 0 - 1437Rule Italy 1969 only - Jun 1 0:00 1:00 S 1438Rule Italy 1970 only - May 31 0:00 1:00 S 1439Rule Italy 1970 only - Sep lastSun 0:00 0 - 1440Rule Italy 1971 1972 - May Sun>=22 0:00 1:00 S 1441Rule Italy 1971 only - Sep lastSun 1:00 0 - 1442Rule Italy 1972 only - Oct 1 0:00 0 - 1443Rule Italy 1973 only - Jun 3 0:00 1:00 S 1444Rule Italy 1973 1974 - Sep lastSun 0:00 0 - 1445Rule Italy 1974 only - May 26 0:00 1:00 S 1446Rule Italy 1975 only - Jun 1 0:00s 1:00 S 1447Rule Italy 1975 1977 - Sep lastSun 0:00s 0 - 1448Rule Italy 1976 only - May 30 0:00s 1:00 S 1449Rule Italy 1977 1979 - May Sun>=22 0:00s 1:00 S 1450Rule Italy 1978 only - Oct 1 0:00s 0 - 1451Rule Italy 1979 only - Sep 30 0:00s 0 - 1452# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1453Zone Europe/Rome 0:49:56 - LMT 1866 Sep 22 1454 0:49:56 - RMT 1893 Nov 1 0:00s # Rome Mean 1455 1:00 Italy CE%sT 1942 Nov 2 2:00s 1456 1:00 C-Eur CE%sT 1944 Jul 1457 1:00 Italy CE%sT 1980 1458 1:00 EU CE%sT 1459 1460Link Europe/Rome Europe/Vatican 1461Link Europe/Rome Europe/San_Marino 1462 1463# Latvia 1464 1465# From Liene Kanepe (1998-09-17): 1466 1467# I asked about this matter Scientific Secretary of the Institute of Astronomy 1468# of The University of Latvia Dr. paed Mr. Ilgonis Vilks. I also searched the 1469# correct data in juridical acts and I found some juridical documents about 1470# changes in the counting of time in Latvia from 1981.... 1471# 1472# Act No.35 of the Council of Ministers of Latvian SSR of 1981-01-22 ... 1473# according to the Act No.925 of the Council of Ministers of USSR of 1980-10-24 1474# ...: all year round the time of 2nd time zone + 1 hour, in addition turning 1475# the hands of the clock 1 hour forward on 1 April at 00:00 (GMT 31 March 21:00) 1476# and 1 hour backward on the 1 October at 00:00 (GMT 30 September 20:00). 1477# 1478# Act No.592 of the Council of Ministers of Latvian SSR of 1984-09-24 ... 1479# according to the Act No.967 of the Council of Ministers of USSR of 1984-09-13 1480# ...: all year round the time of 2nd time zone + 1 hour, in addition turning 1481# the hands of the clock 1 hour forward on the last Sunday of March at 02:00 1482# (GMT 23:00 on the previous day) and 1 hour backward on the last Sunday of 1483# September at 03:00 (GMT 23:00 on the previous day). 1484# 1485# Act No.81 of the Council of Ministers of Latvian SSR of 1989-03-22 ... 1486# according to the Act No.227 of the Council of Ministers of USSR of 1989-03-14 1487# ...: since the last Sunday of March 1989 in Lithuanian SSR, Latvian SSR, 1488# Estonian SSR and Kaliningrad region of Russian Federation all year round the 1489# time of 2nd time zone (Moscow time minus one hour). On the territory of Latvia 1490# transition to summer time is performed on the last Sunday of March at 02:00 1491# (GMT 00:00), turning the hands of the clock 1 hour forward. The end of 1492# daylight saving time is performed on the last Sunday of September at 03:00 1493# (GMT 00:00), turning the hands of the clock 1 hour backward. Exception is 1494# 1989-03-26, when we must not turn the hands of the clock.... 1495# 1496# The Regulations of the Cabinet of Ministers of the Republic of Latvia of 1497# 1997-01-21 on transition to Summer time ... established the same order of 1498# daylight savings time settings as in the States of the European Union. 1499 1500# From Andrei Ivanov (2000-03-06): 1501# This year Latvia will not switch to Daylight Savings Time (as specified in 1502# <a href="http://www.lv-laiks.lv/wwwraksti/2000/071072/vd4.htm"> 1503# The Regulations of the Cabinet of Ministers of the Rep. of Latvia of 1504# 29-Feb-2000 (#79)</a>, in Latvian for subscribers only). 1505 1506# <a href="http://www.rferl.org/newsline/2001/01/3-CEE/cee-030101.html"> 1507# From RFE/RL Newsline (2001-01-03), noted after a heads-up by Rives McDow: 1508# </a> 1509# The Latvian government on 2 January decided that the country will 1510# institute daylight-saving time this spring, LETA reported. 1511# Last February the three Baltic states decided not to turn back their 1512# clocks one hour in the spring.... 1513# Minister of Economy Aigars Kalvitis noted that Latvia had too few 1514# daylight hours and thus decided to comply with a draft European 1515# Commission directive that provides for instituting daylight-saving 1516# time in EU countries between 2002 and 2006. The Latvian government 1517# urged Lithuania and Estonia to adopt a similar time policy, but it 1518# appears that they will not do so.... 1519 1520# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1521Rule Latvia 1989 1996 - Mar lastSun 2:00s 1:00 S 1522Rule Latvia 1989 1996 - Sep lastSun 2:00s 0 - 1523# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1524Zone Europe/Riga 1:36:24 - LMT 1880 1525 1:36:24 - RMT 1918 Apr 15 2:00 #Riga Mean Time 1526 1:36:24 1:00 LST 1918 Sep 16 3:00 #Latvian Summer 1527 1:36:24 - RMT 1919 Apr 1 2:00 1528 1:36:24 1:00 LST 1919 May 22 3:00 1529 1:36:24 - RMT 1926 May 11 1530 2:00 - EET 1940 Aug 5 1531 3:00 - MSK 1941 Jul 1532 1:00 C-Eur CE%sT 1944 Oct 13 1533 3:00 Russia MSK/MSD 1989 Mar lastSun 2:00s 1534 2:00 1:00 EEST 1989 Sep lastSun 2:00s 1535 2:00 Latvia EE%sT 1997 Jan 21 1536 2:00 EU EE%sT 2000 Feb 29 1537 2:00 - EET 2001 Jan 2 1538 2:00 EU EE%sT 1539 1540# Liechtenstein 1541# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1542Zone Europe/Vaduz 0:38:04 - LMT 1894 Jun 1543 1:00 - CET 1981 1544 1:00 EU CE%sT 1545 1546# Lithuania 1547 1548# From Paul Eggert (1996-11-22): 1549# IATA SSIM (1992/1996) says Lithuania uses W-Eur rules, but since it is 1550# known to be wrong about Estonia and Latvia, assume it's wrong here too. 1551 1552# From Marius Gedminas (1998-08-07): 1553# I would like to inform that in this year Lithuanian time zone 1554# (Europe/Vilnius) was changed. 1555 1556# From <a href="http://www.elta.lt/">ELTA</a> No. 972 (2582) (1999-09-29), 1557# via Steffen Thorsen: 1558# Lithuania has shifted back to the second time zone (GMT plus two hours) 1559# to be valid here starting from October 31, 1560# as decided by the national government on Wednesday.... 1561# The Lithuanian government also announced plans to consider a 1562# motion to give up shifting to summer time in spring, as it was 1563# already done by Estonia. 1564 1565# From the <a href="http://www.tourism.lt/informa/ff.htm"> 1566# Fact File, Lithuanian State Department of Tourism 1567# </a> (2000-03-27): Local time is GMT+2 hours ..., no daylight saving. 1568 1569# From a user via Klaus Marten (2003-02-07): 1570# As a candidate for membership of the European Union, Lithuania will 1571# observe Summer Time in 2003, changing its clocks at the times laid 1572# down in EU Directive 2000/84 of 19.I.01 (i.e. at the same times as its 1573# neighbour Latvia). The text of the Lithuanian government Order of 1574# 7.XI.02 to this effect can be found at 1575# http://www.lrvk.lt/nut/11/n1749.htm 1576 1577 1578# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1579Zone Europe/Vilnius 1:41:16 - LMT 1880 1580 1:24:00 - WMT 1917 # Warsaw Mean Time 1581 1:35:36 - KMT 1919 Oct 10 # Kaunas Mean Time 1582 1:00 - CET 1920 Jul 12 1583 2:00 - EET 1920 Oct 9 1584 1:00 - CET 1940 Aug 3 1585 3:00 - MSK 1941 Jun 24 1586 1:00 C-Eur CE%sT 1944 Aug 1587 3:00 Russia MSK/MSD 1991 Mar 31 2:00s 1588 2:00 1:00 EEST 1991 Sep 29 2:00s 1589 2:00 C-Eur EE%sT 1998 1590 2:00 - EET 1998 Mar 29 1:00u 1591 1:00 EU CE%sT 1999 Oct 31 1:00u 1592 2:00 - EET 2003 Jan 1 1593 2:00 EU EE%sT 1594 1595# Luxembourg 1596# Whitman disagrees with most of these dates in minor ways; 1597# go with Shanks & Pottenger. 1598# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1599Rule Lux 1916 only - May 14 23:00 1:00 S 1600Rule Lux 1916 only - Oct 1 1:00 0 - 1601Rule Lux 1917 only - Apr 28 23:00 1:00 S 1602Rule Lux 1917 only - Sep 17 1:00 0 - 1603Rule Lux 1918 only - Apr Mon>=15 2:00s 1:00 S 1604Rule Lux 1918 only - Sep Mon>=15 2:00s 0 - 1605Rule Lux 1919 only - Mar 1 23:00 1:00 S 1606Rule Lux 1919 only - Oct 5 3:00 0 - 1607Rule Lux 1920 only - Feb 14 23:00 1:00 S 1608Rule Lux 1920 only - Oct 24 2:00 0 - 1609Rule Lux 1921 only - Mar 14 23:00 1:00 S 1610Rule Lux 1921 only - Oct 26 2:00 0 - 1611Rule Lux 1922 only - Mar 25 23:00 1:00 S 1612Rule Lux 1922 only - Oct Sun>=2 1:00 0 - 1613Rule Lux 1923 only - Apr 21 23:00 1:00 S 1614Rule Lux 1923 only - Oct Sun>=2 2:00 0 - 1615Rule Lux 1924 only - Mar 29 23:00 1:00 S 1616Rule Lux 1924 1928 - Oct Sun>=2 1:00 0 - 1617Rule Lux 1925 only - Apr 5 23:00 1:00 S 1618Rule Lux 1926 only - Apr 17 23:00 1:00 S 1619Rule Lux 1927 only - Apr 9 23:00 1:00 S 1620Rule Lux 1928 only - Apr 14 23:00 1:00 S 1621Rule Lux 1929 only - Apr 20 23:00 1:00 S 1622# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1623Zone Europe/Luxembourg 0:24:36 - LMT 1904 Jun 1624 1:00 Lux CE%sT 1918 Nov 25 1625 0:00 Lux WE%sT 1929 Oct 6 2:00s 1626 0:00 Belgium WE%sT 1940 May 14 3:00 1627 1:00 C-Eur WE%sT 1944 Sep 18 3:00 1628 1:00 Belgium CE%sT 1977 1629 1:00 EU CE%sT 1630 1631# Macedonia 1632# see Serbia 1633 1634# Malta 1635# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1636Rule Malta 1973 only - Mar 31 0:00s 1:00 S 1637Rule Malta 1973 only - Sep 29 0:00s 0 - 1638Rule Malta 1974 only - Apr 21 0:00s 1:00 S 1639Rule Malta 1974 only - Sep 16 0:00s 0 - 1640Rule Malta 1975 1979 - Apr Sun>=15 2:00 1:00 S 1641Rule Malta 1975 1980 - Sep Sun>=15 2:00 0 - 1642Rule Malta 1980 only - Mar 31 2:00 1:00 S 1643# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1644Zone Europe/Malta 0:58:04 - LMT 1893 Nov 2 0:00s # Valletta 1645 1:00 Italy CE%sT 1942 Nov 2 2:00s 1646 1:00 C-Eur CE%sT 1945 Apr 2 2:00s 1647 1:00 Italy CE%sT 1973 Mar 31 1648 1:00 Malta CE%sT 1981 1649 1:00 EU CE%sT 1650 1651# Moldova 1652 1653# From Paul Eggert (2006-03-22): 1654# A previous version of this database followed Shanks & Pottenger, who write 1655# that Tiraspol switched to Moscow time on 1992-01-19 at 02:00. 1656# However, this is most likely an error, as Moldova declared independence 1657# on 1991-08-27 (the 1992-01-19 date is that of a Russian decree). 1658# In early 1992 there was large-scale interethnic violence in the area 1659# and it's possible that some Russophones continued to observe Moscow time. 1660# But [two people] separately reported via 1661# Jesper Norgaard that as of 2001-01-24 Tiraspol was like Chisinau. 1662# The Tiraspol entry has therefore been removed for now. 1663# 1664# From Alexander Krivenyshev (2011-10-17): 1665# Pridnestrovian Moldavian Republic (PMR, also known as 1666# "Pridnestrovie") has abolished seasonal clock change (no transition 1667# to the Winter Time). 1668# 1669# News (in Russian): 1670# <a href="http://www.kyivpost.ua/russia/news/pridnestrove-otkazalos-ot-perehoda-na-zimnee-vremya-30954.html"> 1671# http://www.kyivpost.ua/russia/news/pridnestrove-otkazalos-ot-perehoda-na-zimnee-vremya-30954.html 1672# </a> 1673# 1674# <a href="http://www.allmoldova.com/moldova-news/1249064116.html"> 1675# http://www.allmoldova.com/moldova-news/1249064116.html 1676# </a> 1677# 1678# The substance of this change (reinstatement of the Tiraspol entry) 1679# is from a patch from Petr Machata (2011-10-17) 1680# 1681# From Tim Parenti (2011-10-19) 1682# In addition, being situated at +4651+2938 would give Tiraspol 1683# a pre-1880 LMT offset of 1:58:32. 1684# 1685# (which agrees with the earlier entry that had been removed) 1686# 1687# From Alexander Krivenyshev (2011-10-26) 1688# NO need to divide Moldova into two timezones at this point. 1689# As of today, Transnistria (Pridnestrovie)- Tiraspol reversed its own 1690# decision to abolish DST this winter. 1691# Following Moldova and neighboring Ukraine- Transnistria (Pridnestrovie)- 1692# Tiraspol will go back to winter time on October 30, 2011. 1693# News from Moldova (in russian): 1694# <a href="http://ru.publika.md/link_317061.html"> 1695# http://ru.publika.md/link_317061.html 1696# </a> 1697 1698 1699# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1700Zone Europe/Chisinau 1:55:20 - LMT 1880 1701 1:55 - CMT 1918 Feb 15 # Chisinau MT 1702 1:44:24 - BMT 1931 Jul 24 # Bucharest MT 1703 2:00 Romania EE%sT 1940 Aug 15 1704 2:00 1:00 EEST 1941 Jul 17 1705 1:00 C-Eur CE%sT 1944 Aug 24 1706 3:00 Russia MSK/MSD 1990 1707 3:00 - MSK 1990 May 6 1708 2:00 - EET 1991 1709 2:00 Russia EE%sT 1992 1710 2:00 E-Eur EE%sT 1997 1711# See Romania commentary for the guessed 1997 transition to EU rules. 1712 2:00 EU EE%sT 1713 1714# Monaco 1715# Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's 1716# more precise 0:09:21. 1717# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1718Zone Europe/Monaco 0:29:32 - LMT 1891 Mar 15 1719 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time 1720 0:00 France WE%sT 1945 Sep 16 3:00 1721 1:00 France CE%sT 1977 1722 1:00 EU CE%sT 1723 1724# Montenegro 1725# see Serbia 1726 1727# Netherlands 1728 1729# Howse writes that the Netherlands' railways used GMT between 1892 and 1940, 1730# but for other purposes the Netherlands used Amsterdam mean time. 1731 1732# However, Robert H. van Gent writes (2001-04-01): 1733# Howse's statement is only correct up to 1909. From 1909-05-01 (00:00:00 1734# Amsterdam mean time) onwards, the whole of the Netherlands (including 1735# the Dutch railways) was required by law to observe Amsterdam mean time 1736# (19 minutes 32.13 seconds ahead of GMT). This had already been the 1737# common practice (except for the railways) for many decades but it was 1738# not until 1909 when the Dutch government finally defined this by law. 1739# On 1937-07-01 this was changed to 20 minutes (exactly) ahead of GMT and 1740# was generally known as Dutch Time ("Nederlandse Tijd"). 1741# 1742# (2001-04-08): 1743# 1892-05-01 was the date when the Dutch railways were by law required to 1744# observe GMT while the remainder of the Netherlands adhered to the common 1745# practice of following Amsterdam mean time. 1746# 1747# (2001-04-09): 1748# In 1835 the authorities of the province of North Holland requested the 1749# municipal authorities of the towns and cities in the province to observe 1750# Amsterdam mean time but I do not know in how many cases this request was 1751# actually followed. 1752# 1753# From 1852 onwards the Dutch telegraph offices were by law required to 1754# observe Amsterdam mean time. As the time signals from the observatory of 1755# Leiden were also distributed by the telegraph system, I assume that most 1756# places linked up with the telegraph (and railway) system automatically 1757# adopted Amsterdam mean time. 1758# 1759# Although the early Dutch railway companies initially observed a variety 1760# of times, most of them had adopted Amsterdam mean time by 1858 but it 1761# was not until 1866 when they were all required by law to observe 1762# Amsterdam mean time. 1763 1764# The data before 1945 are taken from 1765# <http://www.phys.uu.nl/~vgent/wettijd/wettijd.htm>. 1766 1767# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1768Rule Neth 1916 only - May 1 0:00 1:00 NST # Netherlands Summer Time 1769Rule Neth 1916 only - Oct 1 0:00 0 AMT # Amsterdam Mean Time 1770Rule Neth 1917 only - Apr 16 2:00s 1:00 NST 1771Rule Neth 1917 only - Sep 17 2:00s 0 AMT 1772Rule Neth 1918 1921 - Apr Mon>=1 2:00s 1:00 NST 1773Rule Neth 1918 1921 - Sep lastMon 2:00s 0 AMT 1774Rule Neth 1922 only - Mar lastSun 2:00s 1:00 NST 1775Rule Neth 1922 1936 - Oct Sun>=2 2:00s 0 AMT 1776Rule Neth 1923 only - Jun Fri>=1 2:00s 1:00 NST 1777Rule Neth 1924 only - Mar lastSun 2:00s 1:00 NST 1778Rule Neth 1925 only - Jun Fri>=1 2:00s 1:00 NST 1779# From 1926 through 1939 DST began 05-15, except that it was delayed by a week 1780# in years when 05-15 fell in the Pentecost weekend. 1781Rule Neth 1926 1931 - May 15 2:00s 1:00 NST 1782Rule Neth 1932 only - May 22 2:00s 1:00 NST 1783Rule Neth 1933 1936 - May 15 2:00s 1:00 NST 1784Rule Neth 1937 only - May 22 2:00s 1:00 NST 1785Rule Neth 1937 only - Jul 1 0:00 1:00 S 1786Rule Neth 1937 1939 - Oct Sun>=2 2:00s 0 - 1787Rule Neth 1938 1939 - May 15 2:00s 1:00 S 1788Rule Neth 1945 only - Apr 2 2:00s 1:00 S 1789Rule Neth 1945 only - Sep 16 2:00s 0 - 1790# 1791# Amsterdam Mean Time was +00:19:32.13 exactly, but the .13 is omitted 1792# below because the current format requires GMTOFF to be an integer. 1793# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1794Zone Europe/Amsterdam 0:19:32 - LMT 1835 1795 0:19:32 Neth %s 1937 Jul 1 1796 0:20 Neth NE%sT 1940 May 16 0:00 # Dutch Time 1797 1:00 C-Eur CE%sT 1945 Apr 2 2:00 1798 1:00 Neth CE%sT 1977 1799 1:00 EU CE%sT 1800 1801# Norway 1802# http://met.no/met/met_lex/q_u/sommertid.html (2004-01) agrees with Shanks & 1803# Pottenger. 1804# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1805Rule Norway 1916 only - May 22 1:00 1:00 S 1806Rule Norway 1916 only - Sep 30 0:00 0 - 1807Rule Norway 1945 only - Apr 2 2:00s 1:00 S 1808Rule Norway 1945 only - Oct 1 2:00s 0 - 1809Rule Norway 1959 1964 - Mar Sun>=15 2:00s 1:00 S 1810Rule Norway 1959 1965 - Sep Sun>=15 2:00s 0 - 1811Rule Norway 1965 only - Apr 25 2:00s 1:00 S 1812# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1813Zone Europe/Oslo 0:43:00 - LMT 1895 Jan 1 1814 1:00 Norway CE%sT 1940 Aug 10 23:00 1815 1:00 C-Eur CE%sT 1945 Apr 2 2:00 1816 1:00 Norway CE%sT 1980 1817 1:00 EU CE%sT 1818 1819# Svalbard & Jan Mayen 1820 1821# From Steffen Thorsen (2001-05-01): 1822# Although I could not find it explicitly, it seems that Jan Mayen and 1823# Svalbard have been using the same time as Norway at least since the 1824# time they were declared as parts of Norway. Svalbard was declared 1825# as a part of Norway by law of 1925-07-17 no 11, section 4 and Jan 1826# Mayen by law of 1930-02-27 no 2, section 2. (From 1827# http://www.lovdata.no/all/nl-19250717-011.html and 1828# http://www.lovdata.no/all/nl-19300227-002.html). The law/regulation 1829# for normal/standard time in Norway is from 1894-06-29 no 1 (came 1830# into operation on 1895-01-01) and Svalbard/Jan Mayen seem to be a 1831# part of this law since 1925/1930. (From 1832# http://www.lovdata.no/all/nl-18940629-001.html ) I have not been 1833# able to find if Jan Mayen used a different time zone (e.g. -0100) 1834# before 1930. Jan Mayen has only been "inhabitated" since 1921 by 1835# Norwegian meteorologists and maybe used the same time as Norway ever 1836# since 1921. Svalbard (Arctic/Longyearbyen) has been inhabited since 1837# before 1895, and therefore probably changed the local time somewhere 1838# between 1895 and 1925 (inclusive). 1839 1840# From Paul Eggert (2001-05-01): 1841# 1842# Actually, Jan Mayen was never occupied by Germany during World War II, 1843# so it must have diverged from Oslo time during the war, as Oslo was 1844# keeping Berlin time. 1845# 1846# <http://home.no.net/janmayen/history.htm> says that the meteorologists 1847# burned down their station in 1940 and left the island, but returned in 1848# 1941 with a small Norwegian garrison and continued operations despite 1849# frequent air ttacks from Germans. In 1943 the Americans established a 1850# radiolocating station on the island, called "Atlantic City". Possibly 1851# the UTC offset changed during the war, but I think it unlikely that 1852# Jan Mayen used German daylight-saving rules. 1853# 1854# Svalbard is more complicated, as it was raided in August 1941 by an 1855# Allied party that evacuated the civilian population to England (says 1856# <http://www.bartleby.com/65/sv/Svalbard.html>). The Svalbard FAQ 1857# <http://www.svalbard.com/SvalbardFAQ.html> says that the Germans were 1858# expelled on 1942-05-14. However, small parties of Germans did return, 1859# and according to Wilhelm Dege's book "War North of 80" (1954) 1860# <http://www.ucalgary.ca/UofC/departments/UP/1-55238/1-55238-110-2.html> 1861# the German armed forces at the Svalbard weather station code-named 1862# Haudegen did not surrender to the Allies until September 1945. 1863# 1864# All these events predate our cutoff date of 1970. Unless we can 1865# come up with more definitive info about the timekeeping during the 1866# war years it's probably best just do...the following for now: 1867Link Europe/Oslo Arctic/Longyearbyen 1868 1869# Poland 1870# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1871Rule Poland 1918 1919 - Sep 16 2:00s 0 - 1872Rule Poland 1919 only - Apr 15 2:00s 1:00 S 1873Rule Poland 1944 only - Apr 3 2:00s 1:00 S 1874# Whitman gives 1944 Nov 30; go with Shanks & Pottenger. 1875Rule Poland 1944 only - Oct 4 2:00 0 - 1876# For 1944-1948 Whitman gives the previous day; go with Shanks & Pottenger. 1877Rule Poland 1945 only - Apr 29 0:00 1:00 S 1878Rule Poland 1945 only - Nov 1 0:00 0 - 1879# For 1946 on the source is Kazimierz Borkowski, 1880# Torun Center for Astronomy, Dept. of Radio Astronomy, Nicolaus Copernicus U., 1881# <http://www.astro.uni.torun.pl/~kb/Artykuly/U-PA/Czas2.htm#tth_tAb1> 1882# Thanks to Przemyslaw Augustyniak (2005-05-28) for this reference. 1883# He also gives these further references: 1884# Mon Pol nr 13, poz 162 (1995) <http://www.abc.com.pl/serwis/mp/1995/0162.htm> 1885# Druk nr 2180 (2003) <http://www.senat.gov.pl/k5/dok/sejm/053/2180.pdf> 1886Rule Poland 1946 only - Apr 14 0:00s 1:00 S 1887Rule Poland 1946 only - Oct 7 2:00s 0 - 1888Rule Poland 1947 only - May 4 2:00s 1:00 S 1889Rule Poland 1947 1949 - Oct Sun>=1 2:00s 0 - 1890Rule Poland 1948 only - Apr 18 2:00s 1:00 S 1891Rule Poland 1949 only - Apr 10 2:00s 1:00 S 1892Rule Poland 1957 only - Jun 2 1:00s 1:00 S 1893Rule Poland 1957 1958 - Sep lastSun 1:00s 0 - 1894Rule Poland 1958 only - Mar 30 1:00s 1:00 S 1895Rule Poland 1959 only - May 31 1:00s 1:00 S 1896Rule Poland 1959 1961 - Oct Sun>=1 1:00s 0 - 1897Rule Poland 1960 only - Apr 3 1:00s 1:00 S 1898Rule Poland 1961 1964 - May lastSun 1:00s 1:00 S 1899Rule Poland 1962 1964 - Sep lastSun 1:00s 0 - 1900# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1901Zone Europe/Warsaw 1:24:00 - LMT 1880 1902 1:24:00 - WMT 1915 Aug 5 # Warsaw Mean Time 1903 1:00 C-Eur CE%sT 1918 Sep 16 3:00 1904 2:00 Poland EE%sT 1922 Jun 1905 1:00 Poland CE%sT 1940 Jun 23 2:00 1906 1:00 C-Eur CE%sT 1944 Oct 1907 1:00 Poland CE%sT 1977 1908 1:00 W-Eur CE%sT 1988 1909 1:00 EU CE%sT 1910 1911# Portugal 1912# 1913# From Rui Pedro Salgueiro (1992-11-12): 1914# Portugal has recently (September, 27) changed timezone 1915# (from WET to MET or CET) to harmonize with EEC. 1916# 1917# Martin Bruckmann (1996-02-29) reports via Peter Ilieve 1918# that Portugal is reverting to 0:00 by not moving its clocks this spring. 1919# The new Prime Minister was fed up with getting up in the dark in the winter. 1920# 1921# From Paul Eggert (1996-11-12): 1922# IATA SSIM (1991-09) reports several 1991-09 and 1992-09 transitions 1923# at 02:00u, not 01:00u. Assume that these are typos. 1924# IATA SSIM (1991/1992) reports that the Azores were at -1:00. 1925# IATA SSIM (1993-02) says +0:00; later issues (through 1996-09) say -1:00. 1926# Guess that the Azores changed to EU rules in 1992 (since that's when Portugal 1927# harmonized with the EU), and that they stayed +0:00 that winter. 1928# 1929# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1930# DSH writes that despite Decree 1,469 (1915), the change to the clocks was not 1931# done every year, depending on what Spain did, because of railroad schedules. 1932# Go with Shanks & Pottenger. 1933Rule Port 1916 only - Jun 17 23:00 1:00 S 1934# Whitman gives 1916 Oct 31; go with Shanks & Pottenger. 1935Rule Port 1916 only - Nov 1 1:00 0 - 1936Rule Port 1917 only - Feb 28 23:00s 1:00 S 1937Rule Port 1917 1921 - Oct 14 23:00s 0 - 1938Rule Port 1918 only - Mar 1 23:00s 1:00 S 1939Rule Port 1919 only - Feb 28 23:00s 1:00 S 1940Rule Port 1920 only - Feb 29 23:00s 1:00 S 1941Rule Port 1921 only - Feb 28 23:00s 1:00 S 1942Rule Port 1924 only - Apr 16 23:00s 1:00 S 1943Rule Port 1924 only - Oct 14 23:00s 0 - 1944Rule Port 1926 only - Apr 17 23:00s 1:00 S 1945Rule Port 1926 1929 - Oct Sat>=1 23:00s 0 - 1946Rule Port 1927 only - Apr 9 23:00s 1:00 S 1947Rule Port 1928 only - Apr 14 23:00s 1:00 S 1948Rule Port 1929 only - Apr 20 23:00s 1:00 S 1949Rule Port 1931 only - Apr 18 23:00s 1:00 S 1950# Whitman gives 1931 Oct 8; go with Shanks & Pottenger. 1951Rule Port 1931 1932 - Oct Sat>=1 23:00s 0 - 1952Rule Port 1932 only - Apr 2 23:00s 1:00 S 1953Rule Port 1934 only - Apr 7 23:00s 1:00 S 1954# Whitman gives 1934 Oct 5; go with Shanks & Pottenger. 1955Rule Port 1934 1938 - Oct Sat>=1 23:00s 0 - 1956# Shanks & Pottenger give 1935 Apr 30; go with Whitman. 1957Rule Port 1935 only - Mar 30 23:00s 1:00 S 1958Rule Port 1936 only - Apr 18 23:00s 1:00 S 1959# Whitman gives 1937 Apr 2; go with Shanks & Pottenger. 1960Rule Port 1937 only - Apr 3 23:00s 1:00 S 1961Rule Port 1938 only - Mar 26 23:00s 1:00 S 1962Rule Port 1939 only - Apr 15 23:00s 1:00 S 1963# Whitman gives 1939 Oct 7; go with Shanks & Pottenger. 1964Rule Port 1939 only - Nov 18 23:00s 0 - 1965Rule Port 1940 only - Feb 24 23:00s 1:00 S 1966# Shanks & Pottenger give 1940 Oct 7; go with Whitman. 1967Rule Port 1940 1941 - Oct 5 23:00s 0 - 1968Rule Port 1941 only - Apr 5 23:00s 1:00 S 1969Rule Port 1942 1945 - Mar Sat>=8 23:00s 1:00 S 1970Rule Port 1942 only - Apr 25 22:00s 2:00 M # Midsummer 1971Rule Port 1942 only - Aug 15 22:00s 1:00 S 1972Rule Port 1942 1945 - Oct Sat>=24 23:00s 0 - 1973Rule Port 1943 only - Apr 17 22:00s 2:00 M 1974Rule Port 1943 1945 - Aug Sat>=25 22:00s 1:00 S 1975Rule Port 1944 1945 - Apr Sat>=21 22:00s 2:00 M 1976Rule Port 1946 only - Apr Sat>=1 23:00s 1:00 S 1977Rule Port 1946 only - Oct Sat>=1 23:00s 0 - 1978Rule Port 1947 1949 - Apr Sun>=1 2:00s 1:00 S 1979Rule Port 1947 1949 - Oct Sun>=1 2:00s 0 - 1980# Shanks & Pottenger say DST was observed in 1950; go with Whitman. 1981# Whitman gives Oct lastSun for 1952 on; go with Shanks & Pottenger. 1982Rule Port 1951 1965 - Apr Sun>=1 2:00s 1:00 S 1983Rule Port 1951 1965 - Oct Sun>=1 2:00s 0 - 1984Rule Port 1977 only - Mar 27 0:00s 1:00 S 1985Rule Port 1977 only - Sep 25 0:00s 0 - 1986Rule Port 1978 1979 - Apr Sun>=1 0:00s 1:00 S 1987Rule Port 1978 only - Oct 1 0:00s 0 - 1988Rule Port 1979 1982 - Sep lastSun 1:00s 0 - 1989Rule Port 1980 only - Mar lastSun 0:00s 1:00 S 1990Rule Port 1981 1982 - Mar lastSun 1:00s 1:00 S 1991Rule Port 1983 only - Mar lastSun 2:00s 1:00 S 1992# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1993# Shanks & Pottenger say the transition from LMT to WET occurred 1911-05-24; 1994# Willett says 1912-01-01. Go with Willett. 1995Zone Europe/Lisbon -0:36:32 - LMT 1884 1996 -0:36:32 - LMT 1912 Jan 1 # Lisbon Mean Time 1997 0:00 Port WE%sT 1966 Apr 3 2:00 1998 1:00 - CET 1976 Sep 26 1:00 1999 0:00 Port WE%sT 1983 Sep 25 1:00s 2000 0:00 W-Eur WE%sT 1992 Sep 27 1:00s 2001 1:00 EU CE%sT 1996 Mar 31 1:00u 2002 0:00 EU WE%sT 2003Zone Atlantic/Azores -1:42:40 - LMT 1884 # Ponta Delgada 2004 -1:54:32 - HMT 1911 May 24 # Horta Mean Time 2005 -2:00 Port AZO%sT 1966 Apr 3 2:00 # Azores Time 2006 -1:00 Port AZO%sT 1983 Sep 25 1:00s 2007 -1:00 W-Eur AZO%sT 1992 Sep 27 1:00s 2008 0:00 EU WE%sT 1993 Mar 28 1:00u 2009 -1:00 EU AZO%sT 2010Zone Atlantic/Madeira -1:07:36 - LMT 1884 # Funchal 2011 -1:07:36 - FMT 1911 May 24 # Funchal Mean Time 2012 -1:00 Port MAD%sT 1966 Apr 3 2:00 # Madeira Time 2013 0:00 Port WE%sT 1983 Sep 25 1:00s 2014 0:00 EU WE%sT 2015 2016# Romania 2017# 2018# From Paul Eggert (1999-10-07): 2019# <a href="http://www.nineoclock.ro/POL/1778pol.html"> 2020# Nine O'clock</a> (1998-10-23) reports that the switch occurred at 2021# 04:00 local time in fall 1998. For lack of better info, 2022# assume that Romania and Moldova switched to EU rules in 1997, 2023# the same year as Bulgaria. 2024# 2025# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2026Rule Romania 1932 only - May 21 0:00s 1:00 S 2027Rule Romania 1932 1939 - Oct Sun>=1 0:00s 0 - 2028Rule Romania 1933 1939 - Apr Sun>=2 0:00s 1:00 S 2029Rule Romania 1979 only - May 27 0:00 1:00 S 2030Rule Romania 1979 only - Sep lastSun 0:00 0 - 2031Rule Romania 1980 only - Apr 5 23:00 1:00 S 2032Rule Romania 1980 only - Sep lastSun 1:00 0 - 2033Rule Romania 1991 1993 - Mar lastSun 0:00s 1:00 S 2034Rule Romania 1991 1993 - Sep lastSun 0:00s 0 - 2035# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2036Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct 2037 1:44:24 - BMT 1931 Jul 24 # Bucharest MT 2038 2:00 Romania EE%sT 1981 Mar 29 2:00s 2039 2:00 C-Eur EE%sT 1991 2040 2:00 Romania EE%sT 1994 2041 2:00 E-Eur EE%sT 1997 2042 2:00 EU EE%sT 2043 2044# Russia 2045 2046# From Paul Eggert (2006-03-22): 2047# Except for Moscow after 1919-07-01, I invented the time zone abbreviations. 2048# Moscow time zone abbreviations after 1919-07-01, and Moscow rules after 1991, 2049# are from Andrey A. Chernov. The rest is from Shanks & Pottenger, 2050# except we follow Chernov's report that 1992 DST transitions were Sat 2051# 23:00, not Sun 02:00s. 2052# 2053# From Stanislaw A. Kuzikowski (1994-06-29): 2054# But now it is some months since Novosibirsk is 3 hours ahead of Moscow! 2055# I do not know why they have decided to make this change; 2056# as far as I remember it was done exactly during winter->summer switching 2057# so we (Novosibirsk) simply did not switch. 2058# 2059# From Andrey A. Chernov (1996-10-04): 2060# `MSK' and `MSD' were born and used initially on Moscow computers with 2061# UNIX-like OSes by several developer groups (e.g. Demos group, Kiae group).... 2062# The next step was the UUCP network, the Relcom predecessor 2063# (used mainly for mail), and MSK/MSD was actively used there. 2064# 2065# From Chris Carrier (1996-10-30): 2066# According to a friend of mine who rode the Trans-Siberian Railroad from 2067# Moscow to Irkutsk in 1995, public air and rail transport in Russia ... 2068# still follows Moscow time, no matter where in Russia it is located. 2069# 2070# For Grozny, Chechnya, we have the following story from 2071# John Daniszewski, "Scavengers in the Rubble", Los Angeles Times (2001-02-07): 2072# News--often false--is spread by word of mouth. A rumor that it was 2073# time to move the clocks back put this whole city out of sync with 2074# the rest of Russia for two weeks--even soldiers stationed here began 2075# enforcing curfew at the wrong time. 2076# 2077# From Gwillim Law (2001-06-05): 2078# There's considerable evidence that Sakhalin Island used to be in 2079# UTC+11, and has changed to UTC+10, in this decade. I start with the 2080# SSIM, which listed Yuzhno-Sakhalinsk in zone RU10 along with Magadan 2081# until February 1997, and then in RU9 with Khabarovsk and Vladivostok 2082# since September 1997.... Although the Kuril Islands are 2083# administratively part of Sakhalin oblast', they appear to have 2084# remained on UTC+11 along with Magadan. 2085# 2086# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2087# 2088# Kaliningradskaya oblast'. 2089Zone Europe/Kaliningrad 1:22:00 - LMT 1893 Apr 2090 1:00 C-Eur CE%sT 1945 2091 2:00 Poland CE%sT 1946 2092 3:00 Russia MSK/MSD 1991 Mar 31 2:00s 2093 2:00 Russia EE%sT 2011 Mar 27 2:00s 2094 3:00 - FET # Further-eastern European Time 2095# 2096# From Oscar van Vlijmen (2001-08-25): [This region consists of] 2097# Respublika Adygeya, Arkhangel'skaya oblast', 2098# Belgorodskaya oblast', Bryanskaya oblast', Vladimirskaya oblast', 2099# Vologodskaya oblast', Voronezhskaya oblast', 2100# Respublika Dagestan, Ivanovskaya oblast', Respublika Ingushetiya, 2101# Kabarbino-Balkarskaya Respublika, Respublika Kalmykiya, 2102# Kalyzhskaya oblast', Respublika Karachaevo-Cherkessiya, 2103# Respublika Kareliya, Respublika Komi, 2104# Kostromskaya oblast', Krasnodarskij kraj, Kurskaya oblast', 2105# Leningradskaya oblast', Lipetskaya oblast', Respublika Marij El, 2106# Respublika Mordoviya, Moskva, Moskovskaya oblast', 2107# Murmanskaya oblast', Nenetskij avtonomnyj okrug, 2108# Nizhegorodskaya oblast', Novgorodskaya oblast', Orlovskaya oblast', 2109# Penzenskaya oblast', Pskovskaya oblast', Rostovskaya oblast', 2110# Ryazanskaya oblast', Sankt-Peterburg, 2111# Respublika Severnaya Osetiya, Smolenskaya oblast', 2112# Stavropol'skij kraj, Tambovskaya oblast', Respublika Tatarstan, 2113# Tverskaya oblast', Tyl'skaya oblast', Ul'yanovskaya oblast', 2114# Chechenskaya Respublika, Chuvashskaya oblast', 2115# Yaroslavskaya oblast' 2116Zone Europe/Moscow 2:30:20 - LMT 1880 2117 2:30 - MMT 1916 Jul 3 # Moscow Mean Time 2118 2:30:48 Russia %s 1919 Jul 1 2:00 2119 3:00 Russia MSK/MSD 1922 Oct 2120 2:00 - EET 1930 Jun 21 2121 3:00 Russia MSK/MSD 1991 Mar 31 2:00s 2122 2:00 Russia EE%sT 1992 Jan 19 2:00s 2123 3:00 Russia MSK/MSD 2011 Mar 27 2:00s 2124 4:00 - MSK 2125# 2126# Astrakhanskaya oblast', Kirovskaya oblast', Saratovskaya oblast', 2127# Volgogradskaya oblast'. Shanks & Pottenger say Kirov is still at +0400 2128# but Wikipedia (2006-05-09) says +0300. Perhaps it switched after the 2129# others? But we have no data. 2130Zone Europe/Volgograd 2:57:40 - LMT 1920 Jan 3 2131 3:00 - TSAT 1925 Apr 6 # Tsaritsyn Time 2132 3:00 - STAT 1930 Jun 21 # Stalingrad Time 2133 4:00 - STAT 1961 Nov 11 2134 4:00 Russia VOL%sT 1989 Mar 26 2:00s # Volgograd T 2135 3:00 Russia VOL%sT 1991 Mar 31 2:00s 2136 4:00 - VOLT 1992 Mar 29 2:00s 2137 3:00 Russia VOL%sT 2011 Mar 27 2:00s 2138 4:00 - VOLT 2139# 2140# From Oscar van Vlijmen (2001-08-25): [This region consists of] 2141# Samarskaya oblast', Udmyrtskaya respublika 2142Zone Europe/Samara 3:20:36 - LMT 1919 Jul 1 2:00 2143 3:00 - SAMT 1930 Jun 21 2144 4:00 - SAMT 1935 Jan 27 2145 4:00 Russia KUY%sT 1989 Mar 26 2:00s # Kuybyshev 2146 3:00 Russia KUY%sT 1991 Mar 31 2:00s 2147 2:00 Russia KUY%sT 1991 Sep 29 2:00s 2148 3:00 - KUYT 1991 Oct 20 3:00 2149 4:00 Russia SAM%sT 2010 Mar 28 2:00s # Samara Time 2150 3:00 Russia SAM%sT 2011 Mar 27 2:00s 2151 4:00 - SAMT 2152 2153# 2154# From Oscar van Vlijmen (2001-08-25): [This region consists of] 2155# Respublika Bashkortostan, Komi-Permyatskij avtonomnyj okrug, 2156# Kurganskaya oblast', Orenburgskaya oblast', Permskaya oblast', 2157# Sverdlovskaya oblast', Tyumenskaya oblast', 2158# Khanty-Manskijskij avtonomnyj okrug, Chelyabinskaya oblast', 2159# Yamalo-Nenetskij avtonomnyj okrug. 2160Zone Asia/Yekaterinburg 4:02:24 - LMT 1919 Jul 15 4:00 2161 4:00 - SVET 1930 Jun 21 # Sverdlovsk Time 2162 5:00 Russia SVE%sT 1991 Mar 31 2:00s 2163 4:00 Russia SVE%sT 1992 Jan 19 2:00s 2164 5:00 Russia YEK%sT 2011 Mar 27 2:00s 2165 6:00 - YEKT # Yekaterinburg Time 2166# 2167# From Oscar van Vlijmen (2001-08-25): [This region consists of] 2168# Respublika Altaj, Altajskij kraj, Omskaya oblast'. 2169Zone Asia/Omsk 4:53:36 - LMT 1919 Nov 14 2170 5:00 - OMST 1930 Jun 21 # Omsk TIme 2171 6:00 Russia OMS%sT 1991 Mar 31 2:00s 2172 5:00 Russia OMS%sT 1992 Jan 19 2:00s 2173 6:00 Russia OMS%sT 2011 Mar 27 2:00s 2174 7:00 - OMST 2175# 2176# From Paul Eggert (2006-08-19): I'm guessing about Tomsk here; it's 2177# not clear when it switched from +7 to +6. 2178# Novosibirskaya oblast', Tomskaya oblast'. 2179Zone Asia/Novosibirsk 5:31:40 - LMT 1919 Dec 14 6:00 2180 6:00 - NOVT 1930 Jun 21 # Novosibirsk Time 2181 7:00 Russia NOV%sT 1991 Mar 31 2:00s 2182 6:00 Russia NOV%sT 1992 Jan 19 2:00s 2183 7:00 Russia NOV%sT 1993 May 23 # say Shanks & P. 2184 6:00 Russia NOV%sT 2011 Mar 27 2:00s 2185 7:00 - NOVT 2186 2187# From Alexander Krivenyshev (2009-10-13): 2188# Kemerovo oblast' (Kemerovo region) in Russia will change current time zone on 2189# March 28, 2010: 2190# from current Russia Zone 6 - Krasnoyarsk Time Zone (KRA) UTC +0700 2191# to Russia Zone 5 - Novosibirsk Time Zone (NOV) UTC +0600 2192# 2193# This is according to Government of Russia decree # 740, on September 2194# 14, 2009 "Application in the territory of the Kemerovo region the Fifth 2195# time zone." ("Russia Zone 5" or old "USSR Zone 5" is GMT +0600) 2196# 2197# Russian Government web site (Russian language) 2198# <a href="http://www.government.ru/content/governmentactivity/rfgovernmentdecisions/archiv"> 2199# http://www.government.ru/content/governmentactivity/rfgovernmentdecisions/archive/2009/09/14/991633.htm 2200# </a> 2201# or Russian-English translation by WorldTimeZone.com with reference 2202# map to local region and new Russia Time Zone map after March 28, 2010 2203# <a href="http://www.worldtimezone.com/dst_news/dst_news_russia03.html"> 2204# http://www.worldtimezone.com/dst_news/dst_news_russia03.html 2205# </a> 2206# 2207# Thus, when Russia will switch to DST on the night of March 28, 2010 2208# Kemerovo region (Kemerovo oblast') will not change the clock. 2209# 2210# As a result, Kemerovo oblast' will be in the same time zone as 2211# Novosibirsk, Omsk, Tomsk, Barnaul and Altai Republic. 2212 2213Zone Asia/Novokuznetsk 5:48:48 - NMT 1920 Jan 6 2214 6:00 - KRAT 1930 Jun 21 # Krasnoyarsk Time 2215 7:00 Russia KRA%sT 1991 Mar 31 2:00s 2216 6:00 Russia KRA%sT 1992 Jan 19 2:00s 2217 7:00 Russia KRA%sT 2010 Mar 28 2:00s 2218 6:00 Russia NOV%sT 2011 Mar 27 2:00s 2219 7:00 - NOVT # Novosibirsk/Novokuznetsk Time 2220 2221# 2222# From Oscar van Vlijmen (2001-08-25): [This region consists of] 2223# Krasnoyarskij kraj, 2224# Tajmyrskij (Dolgano-Nenetskij) avtonomnyj okrug, 2225# Respublika Tuva, Respublika Khakasiya, Evenkijskij avtonomnyj okrug. 2226Zone Asia/Krasnoyarsk 6:11:20 - LMT 1920 Jan 6 2227 6:00 - KRAT 1930 Jun 21 # Krasnoyarsk Time 2228 7:00 Russia KRA%sT 1991 Mar 31 2:00s 2229 6:00 Russia KRA%sT 1992 Jan 19 2:00s 2230 7:00 Russia KRA%sT 2011 Mar 27 2:00s 2231 8:00 - KRAT 2232# 2233# From Oscar van Vlijmen (2001-08-25): [This region consists of] 2234# Respublika Buryatiya, Irkutskaya oblast', 2235# Ust'-Ordynskij Buryatskij avtonomnyj okrug. 2236Zone Asia/Irkutsk 6:57:20 - LMT 1880 2237 6:57:20 - IMT 1920 Jan 25 # Irkutsk Mean Time 2238 7:00 - IRKT 1930 Jun 21 # Irkutsk Time 2239 8:00 Russia IRK%sT 1991 Mar 31 2:00s 2240 7:00 Russia IRK%sT 1992 Jan 19 2:00s 2241 8:00 Russia IRK%sT 2011 Mar 27 2:00s 2242 9:00 - IRKT 2243# 2244# From Oscar van Vlijmen (2003-10-18): [This region consists of] 2245# Aginskij Buryatskij avtonomnyj okrug, Amurskaya oblast', 2246# [parts of] Respublika Sakha (Yakutiya), Chitinskaya oblast'. 2247 2248# From Oscar van Vlijmen (2009-11-29): 2249# ...some regions of [Russia] were merged with others since 2005... 2250# Some names were changed, no big deal, except for one instance: a new name. 2251# YAK/YAKST: UTC+9 Zabajkal'skij kraj. 2252 2253# From Oscar van Vlijmen (2009-11-29): 2254# The Sakha districts are: Aldanskij, Amginskij, Anabarskij, 2255# Verkhnevilyujskij, Vilyujskij, Gornyj, 2256# Zhiganskij, Kobyajskij, Lenskij, Megino-Kangalasskij, Mirninskij, 2257# Namskij, Nyurbinskij, Olenyokskij, Olyokminskij, 2258# Suntarskij, Tattinskij, Ust'-Aldanskij, Khangalasskij, 2259# Churapchinskij, Eveno-Bytantajskij Natsional'nij. 2260 2261Zone Asia/Yakutsk 8:38:40 - LMT 1919 Dec 15 2262 8:00 - YAKT 1930 Jun 21 # Yakutsk Time 2263 9:00 Russia YAK%sT 1991 Mar 31 2:00s 2264 8:00 Russia YAK%sT 1992 Jan 19 2:00s 2265 9:00 Russia YAK%sT 2011 Mar 27 2:00s 2266 10:00 - YAKT 2267# 2268# From Oscar van Vlijmen (2003-10-18): [This region consists of] 2269# Evrejskaya avtonomnaya oblast', Khabarovskij kraj, Primorskij kraj, 2270# [parts of] Respublika Sakha (Yakutiya). 2271 2272# From Oscar van Vlijmen (2009-11-29): 2273# The Sakha districts are: Bulunskij, Verkhoyanskij, Tomponskij, Ust'-Majskij, 2274# Ust'-Yanskij. 2275Zone Asia/Vladivostok 8:47:44 - LMT 1922 Nov 15 2276 9:00 - VLAT 1930 Jun 21 # Vladivostok Time 2277 10:00 Russia VLA%sT 1991 Mar 31 2:00s 2278 9:00 Russia VLA%sST 1992 Jan 19 2:00s 2279 10:00 Russia VLA%sT 2011 Mar 27 2:00s 2280 11:00 - VLAT 2281# 2282# Sakhalinskaya oblast'. 2283# The Zone name should be Yuzhno-Sakhalinsk, but that's too long. 2284Zone Asia/Sakhalin 9:30:48 - LMT 1905 Aug 23 2285 9:00 - CJT 1938 2286 9:00 - JST 1945 Aug 25 2287 11:00 Russia SAK%sT 1991 Mar 31 2:00s # Sakhalin T. 2288 10:00 Russia SAK%sT 1992 Jan 19 2:00s 2289 11:00 Russia SAK%sT 1997 Mar lastSun 2:00s 2290 10:00 Russia SAK%sT 2011 Mar 27 2:00s 2291 11:00 - SAKT 2292# 2293# From Oscar van Vlijmen (2003-10-18): [This region consists of] 2294# Magadanskaya oblast', Respublika Sakha (Yakutiya). 2295# Probably also: Kuril Islands. 2296 2297# From Oscar van Vlijmen (2009-11-29): 2298# The Sakha districts are: Abyjskij, Allaikhovskij, Verkhhhnekolymskij, Momskij, 2299# Nizhnekolymskij, Ojmyakonskij, Srednekolymskij. 2300Zone Asia/Magadan 10:03:12 - LMT 1924 May 2 2301 10:00 - MAGT 1930 Jun 21 # Magadan Time 2302 11:00 Russia MAG%sT 1991 Mar 31 2:00s 2303 10:00 Russia MAG%sT 1992 Jan 19 2:00s 2304 11:00 Russia MAG%sT 2011 Mar 27 2:00s 2305 12:00 - MAGT 2306# 2307# From Oscar van Vlijmen (2001-08-25): [This region consists of] 2308# Kamchatskaya oblast', Koryakskij avtonomnyj okrug. 2309# 2310# The Zone name should be Asia/Petropavlovsk-Kamchatski, but that's too long. 2311Zone Asia/Kamchatka 10:34:36 - LMT 1922 Nov 10 2312 11:00 - PETT 1930 Jun 21 # P-K Time 2313 12:00 Russia PET%sT 1991 Mar 31 2:00s 2314 11:00 Russia PET%sT 1992 Jan 19 2:00s 2315 12:00 Russia PET%sT 2010 Mar 28 2:00s 2316 11:00 Russia PET%sT 2011 Mar 27 2:00s 2317 12:00 - PETT 2318# 2319# Chukotskij avtonomnyj okrug 2320Zone Asia/Anadyr 11:49:56 - LMT 1924 May 2 2321 12:00 - ANAT 1930 Jun 21 # Anadyr Time 2322 13:00 Russia ANA%sT 1982 Apr 1 0:00s 2323 12:00 Russia ANA%sT 1991 Mar 31 2:00s 2324 11:00 Russia ANA%sT 1992 Jan 19 2:00s 2325 12:00 Russia ANA%sT 2010 Mar 28 2:00s 2326 11:00 Russia ANA%sT 2011 Mar 27 2:00s 2327 12:00 - ANAT 2328 2329# Serbia 2330# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2331Zone Europe/Belgrade 1:22:00 - LMT 1884 2332 1:00 - CET 1941 Apr 18 23:00 2333 1:00 C-Eur CE%sT 1945 2334 1:00 - CET 1945 May 8 2:00s 2335 1:00 1:00 CEST 1945 Sep 16 2:00s 2336# Metod Kozelj reports that the legal date of 2337# transition to EU rules was 1982-11-27, for all of Yugoslavia at the time. 2338# Shanks & Pottenger don't give as much detail, so go with Kozelj. 2339 1:00 - CET 1982 Nov 27 2340 1:00 EU CE%sT 2341Link Europe/Belgrade Europe/Ljubljana # Slovenia 2342Link Europe/Belgrade Europe/Podgorica # Montenegro 2343Link Europe/Belgrade Europe/Sarajevo # Bosnia and Herzegovina 2344Link Europe/Belgrade Europe/Skopje # Macedonia 2345Link Europe/Belgrade Europe/Zagreb # Croatia 2346 2347# Slovakia 2348Link Europe/Prague Europe/Bratislava 2349 2350# Slovenia 2351# see Serbia 2352 2353# Spain 2354# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2355# For 1917-1919 Whitman gives Apr Sat>=1 - Oct Sat>=1; 2356# go with Shanks & Pottenger. 2357Rule Spain 1917 only - May 5 23:00s 1:00 S 2358Rule Spain 1917 1919 - Oct 6 23:00s 0 - 2359Rule Spain 1918 only - Apr 15 23:00s 1:00 S 2360Rule Spain 1919 only - Apr 5 23:00s 1:00 S 2361# Whitman gives 1921 Feb 28 - Oct 14; go with Shanks & Pottenger. 2362Rule Spain 1924 only - Apr 16 23:00s 1:00 S 2363# Whitman gives 1924 Oct 14; go with Shanks & Pottenger. 2364Rule Spain 1924 only - Oct 4 23:00s 0 - 2365Rule Spain 1926 only - Apr 17 23:00s 1:00 S 2366# Whitman says no DST in 1929; go with Shanks & Pottenger. 2367Rule Spain 1926 1929 - Oct Sat>=1 23:00s 0 - 2368Rule Spain 1927 only - Apr 9 23:00s 1:00 S 2369Rule Spain 1928 only - Apr 14 23:00s 1:00 S 2370Rule Spain 1929 only - Apr 20 23:00s 1:00 S 2371# Whitman gives 1937 Jun 16, 1938 Apr 16, 1940 Apr 13; 2372# go with Shanks & Pottenger. 2373Rule Spain 1937 only - May 22 23:00s 1:00 S 2374Rule Spain 1937 1939 - Oct Sat>=1 23:00s 0 - 2375Rule Spain 1938 only - Mar 22 23:00s 1:00 S 2376Rule Spain 1939 only - Apr 15 23:00s 1:00 S 2377Rule Spain 1940 only - Mar 16 23:00s 1:00 S 2378# Whitman says no DST 1942-1945; go with Shanks & Pottenger. 2379Rule Spain 1942 only - May 2 22:00s 2:00 M # Midsummer 2380Rule Spain 1942 only - Sep 1 22:00s 1:00 S 2381Rule Spain 1943 1946 - Apr Sat>=13 22:00s 2:00 M 2382Rule Spain 1943 only - Oct 3 22:00s 1:00 S 2383Rule Spain 1944 only - Oct 10 22:00s 1:00 S 2384Rule Spain 1945 only - Sep 30 1:00 1:00 S 2385Rule Spain 1946 only - Sep 30 0:00 0 - 2386Rule Spain 1949 only - Apr 30 23:00 1:00 S 2387Rule Spain 1949 only - Sep 30 1:00 0 - 2388Rule Spain 1974 1975 - Apr Sat>=13 23:00 1:00 S 2389Rule Spain 1974 1975 - Oct Sun>=1 1:00 0 - 2390Rule Spain 1976 only - Mar 27 23:00 1:00 S 2391Rule Spain 1976 1977 - Sep lastSun 1:00 0 - 2392Rule Spain 1977 1978 - Apr 2 23:00 1:00 S 2393Rule Spain 1978 only - Oct 1 1:00 0 - 2394# The following rules are copied from Morocco from 1967 through 1978. 2395Rule SpainAfrica 1967 only - Jun 3 12:00 1:00 S 2396Rule SpainAfrica 1967 only - Oct 1 0:00 0 - 2397Rule SpainAfrica 1974 only - Jun 24 0:00 1:00 S 2398Rule SpainAfrica 1974 only - Sep 1 0:00 0 - 2399Rule SpainAfrica 1976 1977 - May 1 0:00 1:00 S 2400Rule SpainAfrica 1976 only - Aug 1 0:00 0 - 2401Rule SpainAfrica 1977 only - Sep 28 0:00 0 - 2402Rule SpainAfrica 1978 only - Jun 1 0:00 1:00 S 2403Rule SpainAfrica 1978 only - Aug 4 0:00 0 - 2404# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2405Zone Europe/Madrid -0:14:44 - LMT 1901 Jan 1 0:00s 2406 0:00 Spain WE%sT 1946 Sep 30 2407 1:00 Spain CE%sT 1979 2408 1:00 EU CE%sT 2409Zone Africa/Ceuta -0:21:16 - LMT 1901 2410 0:00 - WET 1918 May 6 23:00 2411 0:00 1:00 WEST 1918 Oct 7 23:00 2412 0:00 - WET 1924 2413 0:00 Spain WE%sT 1929 2414 0:00 SpainAfrica WE%sT 1984 Mar 16 2415 1:00 - CET 1986 2416 1:00 EU CE%sT 2417Zone Atlantic/Canary -1:01:36 - LMT 1922 Mar # Las Palmas de Gran C. 2418 -1:00 - CANT 1946 Sep 30 1:00 # Canaries Time 2419 0:00 - WET 1980 Apr 6 0:00s 2420 0:00 1:00 WEST 1980 Sep 28 0:00s 2421 0:00 EU WE%sT 2422# IATA SSIM (1996-09) says the Canaries switch at 2:00u, not 1:00u. 2423# Ignore this for now, as the Canaries are part of the EU. 2424 2425# Sweden 2426 2427# From Ivan Nilsson (2001-04-13), superseding Shanks & Pottenger: 2428# 2429# The law "Svensk forfattningssamling 1878, no 14" about standard time in 1879: 2430# From the beginning of 1879 (that is 01-01 00:00) the time for all 2431# places in the country is "the mean solar time for the meridian at 2432# three degrees, or twelve minutes of time, to the west of the 2433# meridian of the Observatory of Stockholm". The law is dated 1878-05-31. 2434# 2435# The observatory at that time had the meridian 18 degrees 03' 30" 2436# eastern longitude = 01:12:14 in time. Less 12 minutes gives the 2437# national standard time as 01:00:14 ahead of GMT.... 2438# 2439# About the beginning of CET in Sweden. The lawtext ("Svensk 2440# forfattningssamling 1899, no 44") states, that "from the beginning 2441# of 1900... ... the same as the mean solar time for the meridian at 2442# the distance of one hour of time from the meridian of the English 2443# observatory at Greenwich, or at 12 minutes 14 seconds to the west 2444# from the meridian of the Observatory of Stockholm". The law is dated 2445# 1899-06-16. In short: At 1900-01-01 00:00:00 the new standard time 2446# in Sweden is 01:00:00 ahead of GMT. 2447# 2448# 1916: The lawtext ("Svensk forfattningssamling 1916, no 124") states 2449# that "1916-05-15 is considered to begin one hour earlier". It is 2450# pretty obvious that at 05-14 23:00 the clocks are set to 05-15 00:00.... 2451# Further the law says, that "1916-09-30 is considered to end one hour later". 2452# 2453# The laws regulating [DST] are available on the site of the Swedish 2454# Parliament beginning with 1985 - the laws regulating 1980/1984 are 2455# not available on the site (to my knowledge they are only available 2456# in Swedish): <http://www.riksdagen.se/english/work/sfst.asp> (type 2457# "sommartid" without the quotes in the field "Fritext" and then click 2458# the Sok-button). 2459# 2460# (2001-05-13): 2461# 2462# I have now found a newspaper stating that at 1916-10-01 01:00 2463# summertime the church-clocks etc were set back one hour to show 2464# 1916-10-01 00:00 standard time. The article also reports that some 2465# people thought the switch to standard time would take place already 2466# at 1916-10-01 00:00 summer time, but they had to wait for another 2467# hour before the event took place. 2468# 2469# Source: The newspaper "Dagens Nyheter", 1916-10-01, page 7 upper left. 2470 2471# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2472Zone Europe/Stockholm 1:12:12 - LMT 1879 Jan 1 2473 1:00:14 - SET 1900 Jan 1 # Swedish Time 2474 1:00 - CET 1916 May 14 23:00 2475 1:00 1:00 CEST 1916 Oct 1 01:00 2476 1:00 - CET 1980 2477 1:00 EU CE%sT 2478 2479# Switzerland 2480# From Howse: 2481# By the end of the 18th century clocks and watches became commonplace 2482# and their performance improved enormously. Communities began to keep 2483# mean time in preference to apparent time -- Geneva from 1780 .... 2484# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2485# From Whitman (who writes ``Midnight?''): 2486# Rule Swiss 1940 only - Nov 2 0:00 1:00 S 2487# Rule Swiss 1940 only - Dec 31 0:00 0 - 2488# From Shanks & Pottenger: 2489# Rule Swiss 1941 1942 - May Sun>=1 2:00 1:00 S 2490# Rule Swiss 1941 1942 - Oct Sun>=1 0:00 0 - 2491 2492# From Alois Treindl (2008-12-17): 2493# I have researched the DST usage in Switzerland during the 1940ies. 2494# 2495# As I wrote in an earlier message, I suspected the current tzdata values 2496# to be wrong. This is now verified. 2497# 2498# I have found copies of the original ruling by the Swiss Federal 2499# government, in 'Eidgen[o]ssische Gesetzessammlung 1941 and 1942' (Swiss 2500# federal law collection)... 2501# 2502# DST began on Monday 5 May 1941, 1:00 am by shifting the clocks to 2:00 am 2503# DST ended on Monday 6 Oct 1941, 2:00 am by shifting the clocks to 1:00 am. 2504# 2505# DST began on Monday, 4 May 1942 at 01:00 am 2506# DST ended on Monday, 5 Oct 1942 at 02:00 am 2507# 2508# There was no DST in 1940, I have checked the law collection carefully. 2509# It is also indicated by the fact that the 1942 entry in the law 2510# collection points back to 1941 as a reference, but no reference to any 2511# other years are made. 2512# 2513# Newspaper articles I have read in the archives on 6 May 1941 reported 2514# about the introduction of DST (Sommerzeit in German) during the previous 2515# night as an absolute novelty, because this was the first time that such 2516# a thing had happened in Switzerland. 2517# 2518# I have also checked 1916, because one book source (Gabriel, Traite de 2519# l'heure dans le monde) claims that Switzerland had DST in 1916. This is 2520# false, no official document could be found. Probably Gabriel got misled 2521# by references to Germany, which introduced DST in 1916 for the first time. 2522# 2523# The tzdata rules for Switzerland must be changed to: 2524# Rule Swiss 1941 1942 - May Mon>=1 1:00 1:00 S 2525# Rule Swiss 1941 1942 - Oct Mon>=1 2:00 0 - 2526# 2527# The 1940 rules must be deleted. 2528# 2529# One further detail for Switzerland, which is probably out of scope for 2530# most users of tzdata: 2531# The zone file 2532# Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12 2533# 0:29:44 - BMT 1894 Jun #Bern Mean Time 2534# 1:00 Swiss CE%sT 1981 2535# 1:00 EU CE%sT 2536# describes all of Switzerland correctly, with the exception of 2537# the Cantone Geneve (Geneva, Genf). Between 1848 and 1894 Geneve did not 2538# follow Bern Mean Time but kept its own local mean time. 2539# To represent this, an extra zone would be needed. 2540 2541# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2542Rule Swiss 1941 1942 - May Mon>=1 1:00 1:00 S 2543Rule Swiss 1941 1942 - Oct Mon>=1 2:00 0 - 2544# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2545Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12 2546 0:29:44 - BMT 1894 Jun # Bern Mean Time 2547 1:00 Swiss CE%sT 1981 2548 1:00 EU CE%sT 2549 2550# Turkey 2551 2552# From Amar Devegowda (2007-01-03): 2553# The time zone rules for Istanbul, Turkey have not been changed for years now. 2554# ... The latest rules are available at - 2555# http://www.timeanddate.com/worldclock/timezone.html?n=107 2556# From Steffen Thorsen (2007-01-03): 2557# I have been able to find press records back to 1996 which all say that 2558# DST started 01:00 local time and end at 02:00 local time. I am not sure 2559# what happened before that. One example for each year from 1996 to 2001: 2560# http://newspot.byegm.gov.tr/arsiv/1996/21/N4.htm 2561# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING97/03/97X03X25.TXT 2562# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING98/03/98X03X02.HTM 2563# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING99/10/99X10X26.HTM#%2016 2564# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING2000/03/00X03X06.HTM#%2021 2565# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING2001/03/23x03x01.HTM#%2027 2566# From Paul Eggert (2007-01-03): 2567# Prefer the above source to Shanks & Pottenger for time stamps after 1990. 2568 2569# From Steffen Thorsen (2007-03-09): 2570# Starting 2007 though, it seems that they are adopting EU's 1:00 UTC 2571# start/end time, according to the following page (2007-03-07): 2572# http://www.ntvmsnbc.com/news/402029.asp 2573# The official document is located here - it is in Turkish...: 2574# http://rega.basbakanlik.gov.tr/eskiler/2007/03/20070307-7.htm 2575# I was able to locate the following seemingly official document 2576# (on a non-government server though) describing dates between 2002 and 2006: 2577# http://www.alomaliye.com/bkk_2002_3769.htm 2578 2579# From Gökdeniz Karadağ (2011-03-10): 2580# 2581# According to the articles linked below, Turkey will change into summer 2582# time zone (GMT+3) on March 28, 2011 at 3:00 a.m. instead of March 27. 2583# This change is due to a nationwide exam on 27th. 2584# 2585# <a href="http://www.worldbulletin.net/?aType=haber&ArticleID=70872"> 2586# http://www.worldbulletin.net/?aType=haber&ArticleID=70872 2587# </a> 2588# Turkish: 2589# <a href="http://www.hurriyet.com.tr/ekonomi/17230464.asp?gid=373"> 2590# http://www.hurriyet.com.tr/ekonomi/17230464.asp?gid=373 2591# </a> 2592 2593# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2594Rule Turkey 1916 only - May 1 0:00 1:00 S 2595Rule Turkey 1916 only - Oct 1 0:00 0 - 2596Rule Turkey 1920 only - Mar 28 0:00 1:00 S 2597Rule Turkey 1920 only - Oct 25 0:00 0 - 2598Rule Turkey 1921 only - Apr 3 0:00 1:00 S 2599Rule Turkey 1921 only - Oct 3 0:00 0 - 2600Rule Turkey 1922 only - Mar 26 0:00 1:00 S 2601Rule Turkey 1922 only - Oct 8 0:00 0 - 2602# Whitman gives 1923 Apr 28 - Sep 16 and no DST in 1924-1925; 2603# go with Shanks & Pottenger. 2604Rule Turkey 1924 only - May 13 0:00 1:00 S 2605Rule Turkey 1924 1925 - Oct 1 0:00 0 - 2606Rule Turkey 1925 only - May 1 0:00 1:00 S 2607Rule Turkey 1940 only - Jun 30 0:00 1:00 S 2608Rule Turkey 1940 only - Oct 5 0:00 0 - 2609Rule Turkey 1940 only - Dec 1 0:00 1:00 S 2610Rule Turkey 1941 only - Sep 21 0:00 0 - 2611Rule Turkey 1942 only - Apr 1 0:00 1:00 S 2612# Whitman omits the next two transition and gives 1945 Oct 1; 2613# go with Shanks & Pottenger. 2614Rule Turkey 1942 only - Nov 1 0:00 0 - 2615Rule Turkey 1945 only - Apr 2 0:00 1:00 S 2616Rule Turkey 1945 only - Oct 8 0:00 0 - 2617Rule Turkey 1946 only - Jun 1 0:00 1:00 S 2618Rule Turkey 1946 only - Oct 1 0:00 0 - 2619Rule Turkey 1947 1948 - Apr Sun>=16 0:00 1:00 S 2620Rule Turkey 1947 1950 - Oct Sun>=2 0:00 0 - 2621Rule Turkey 1949 only - Apr 10 0:00 1:00 S 2622Rule Turkey 1950 only - Apr 19 0:00 1:00 S 2623Rule Turkey 1951 only - Apr 22 0:00 1:00 S 2624Rule Turkey 1951 only - Oct 8 0:00 0 - 2625Rule Turkey 1962 only - Jul 15 0:00 1:00 S 2626Rule Turkey 1962 only - Oct 8 0:00 0 - 2627Rule Turkey 1964 only - May 15 0:00 1:00 S 2628Rule Turkey 1964 only - Oct 1 0:00 0 - 2629Rule Turkey 1970 1972 - May Sun>=2 0:00 1:00 S 2630Rule Turkey 1970 1972 - Oct Sun>=2 0:00 0 - 2631Rule Turkey 1973 only - Jun 3 1:00 1:00 S 2632Rule Turkey 1973 only - Nov 4 3:00 0 - 2633Rule Turkey 1974 only - Mar 31 2:00 1:00 S 2634Rule Turkey 1974 only - Nov 3 5:00 0 - 2635Rule Turkey 1975 only - Mar 30 0:00 1:00 S 2636Rule Turkey 1975 1976 - Oct lastSun 0:00 0 - 2637Rule Turkey 1976 only - Jun 1 0:00 1:00 S 2638Rule Turkey 1977 1978 - Apr Sun>=1 0:00 1:00 S 2639Rule Turkey 1977 only - Oct 16 0:00 0 - 2640Rule Turkey 1979 1980 - Apr Sun>=1 3:00 1:00 S 2641Rule Turkey 1979 1982 - Oct Mon>=11 0:00 0 - 2642Rule Turkey 1981 1982 - Mar lastSun 3:00 1:00 S 2643Rule Turkey 1983 only - Jul 31 0:00 1:00 S 2644Rule Turkey 1983 only - Oct 2 0:00 0 - 2645Rule Turkey 1985 only - Apr 20 0:00 1:00 S 2646Rule Turkey 1985 only - Sep 28 0:00 0 - 2647Rule Turkey 1986 1990 - Mar lastSun 2:00s 1:00 S 2648Rule Turkey 1986 1990 - Sep lastSun 2:00s 0 - 2649Rule Turkey 1991 2006 - Mar lastSun 1:00s 1:00 S 2650Rule Turkey 1991 1995 - Sep lastSun 1:00s 0 - 2651Rule Turkey 1996 2006 - Oct lastSun 1:00s 0 - 2652# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2653Zone Europe/Istanbul 1:55:52 - LMT 1880 2654 1:56:56 - IMT 1910 Oct # Istanbul Mean Time? 2655 2:00 Turkey EE%sT 1978 Oct 15 2656 3:00 Turkey TR%sT 1985 Apr 20 # Turkey Time 2657 2:00 Turkey EE%sT 2007 2658 2:00 EU EE%sT 2011 Mar 27 1:00u 2659 2:00 - EET 2011 Mar 28 1:00u 2660 2:00 EU EE%sT 2661Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents. 2662 2663# Ukraine 2664# 2665# From Igor Karpov, who works for the Ukranian Ministry of Justice, 2666# via Garrett Wollman (2003-01-27): 2667# BTW, I've found the official document on this matter. It's goverment 2668# regulations number 509, May 13, 1996. In my poor translation it says: 2669# "Time in Ukraine is set to second timezone (Kiev time). Each last Sunday 2670# of March at 3am the time is changing to 4am and each last Sunday of 2671# October the time at 4am is changing to 3am" 2672 2673# From Alexander Krivenyshev (2011-09-20): 2674# On September 20, 2011 the deputies of the Verkhovna Rada agreed to 2675# abolish the transfer clock to winter time. 2676# 2677# Bill number 8330 of MP from the Party of Regions Oleg Nadoshi got 2678# approval from 266 deputies. 2679# 2680# Ukraine abolishes transter back to the winter time (in Russian) 2681# <a href="http://news.mail.ru/politics/6861560/"> 2682# http://news.mail.ru/politics/6861560/ 2683# </a> 2684# 2685# The Ukrainians will no longer change the clock (in Russian) 2686# <a href="http://www.segodnya.ua/news/14290482.html"> 2687# http://www.segodnya.ua/news/14290482.html 2688# </a> 2689# 2690# Deputies cancelled the winter time (in Russian) 2691# <a href="http://www.pravda.com.ua/rus/news/2011/09/20/6600616/"> 2692# http://www.pravda.com.ua/rus/news/2011/09/20/6600616/ 2693# </a> 2694# 2695# From Philip Pizzey (2011-10-18): 2696# Today my Ukrainian colleagues have informed me that the 2697# Ukrainian parliament have decided that they will go to winter 2698# time this year after all. 2699# 2700# From Udo Schwedt (2011-10-18): 2701# As far as I understand, the recent change to the Ukranian time zone 2702# (Europe/Kiev) to introduce permanent daylight saving time (similar 2703# to Russia) was reverted today: 2704# 2705# <a href="http://portal.rada.gov.ua/rada/control/en/publish/article/info_left?art_id=287324&cat_id=105995"> 2706# http://portal.rada.gov.ua/rada/control/en/publish/article/info_left?art_id=287324&cat_id=105995 2707# </a> 2708# 2709# Also reported by Alexander Bokovoy (2011-10-18) who also noted: 2710# The law documents themselves are at 2711# 2712# <a href="http://w1.c1.rada.gov.ua/pls/zweb_n/webproc4_1?id=&pf3511=41484"> 2713# http://w1.c1.rada.gov.ua/pls/zweb_n/webproc4_1?id=&pf3511=41484 2714# </a> 2715 2716 2717# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2718# Most of Ukraine since 1970 has been like Kiev. 2719# "Kyiv" is the transliteration of the Ukrainian name, but 2720# "Kiev" is more common in English. 2721Zone Europe/Kiev 2:02:04 - LMT 1880 2722 2:02:04 - KMT 1924 May 2 # Kiev Mean Time 2723 2:00 - EET 1930 Jun 21 2724 3:00 - MSK 1941 Sep 20 2725 1:00 C-Eur CE%sT 1943 Nov 6 2726 3:00 Russia MSK/MSD 1990 2727 3:00 - MSK 1990 Jul 1 2:00 2728 2:00 - EET 1992 2729 2:00 E-Eur EE%sT 1995 2730 2:00 EU EE%sT 2731# Ruthenia used CET 1990/1991. 2732# "Uzhhorod" is the transliteration of the Ukrainian name, but 2733# "Uzhgorod" is more common in English. 2734Zone Europe/Uzhgorod 1:29:12 - LMT 1890 Oct 2735 1:00 - CET 1940 2736 1:00 C-Eur CE%sT 1944 Oct 2737 1:00 1:00 CEST 1944 Oct 26 2738 1:00 - CET 1945 Jun 29 2739 3:00 Russia MSK/MSD 1990 2740 3:00 - MSK 1990 Jul 1 2:00 2741 1:00 - CET 1991 Mar 31 3:00 2742 2:00 - EET 1992 2743 2:00 E-Eur EE%sT 1995 2744 2:00 EU EE%sT 2745# Zaporozh'ye and eastern Lugansk oblasts observed DST 1990/1991. 2746# "Zaporizhia" is the transliteration of the Ukrainian name, but 2747# "Zaporozh'ye" is more common in English. Use the common English 2748# spelling, except omit the apostrophe as it is not allowed in 2749# portable Posix file names. 2750Zone Europe/Zaporozhye 2:20:40 - LMT 1880 2751 2:20 - CUT 1924 May 2 # Central Ukraine T 2752 2:00 - EET 1930 Jun 21 2753 3:00 - MSK 1941 Aug 25 2754 1:00 C-Eur CE%sT 1943 Oct 25 2755 3:00 Russia MSK/MSD 1991 Mar 31 2:00 2756 2:00 E-Eur EE%sT 1995 2757 2:00 EU EE%sT 2758# Central Crimea used Moscow time 1994/1997. 2759Zone Europe/Simferopol 2:16:24 - LMT 1880 2760 2:16 - SMT 1924 May 2 # Simferopol Mean T 2761 2:00 - EET 1930 Jun 21 2762 3:00 - MSK 1941 Nov 2763 1:00 C-Eur CE%sT 1944 Apr 13 2764 3:00 Russia MSK/MSD 1990 2765 3:00 - MSK 1990 Jul 1 2:00 2766 2:00 - EET 1992 2767# From Paul Eggert (2006-03-22): 2768# The _Economist_ (1994-05-28, p 45) reports that central Crimea switched 2769# from Kiev to Moscow time sometime after the January 1994 elections. 2770# Shanks (1999) says ``date of change uncertain'', but implies that it happened 2771# sometime between the 1994 DST switches. Shanks & Pottenger simply say 2772# 1994-09-25 03:00, but that can't be right. For now, guess it 2773# changed in May. 2774 2:00 E-Eur EE%sT 1994 May 2775# From IATA SSIM (1994/1997), which also says that Kerch is still like Kiev. 2776 3:00 E-Eur MSK/MSD 1996 Mar 31 3:00s 2777 3:00 1:00 MSD 1996 Oct 27 3:00s 2778# IATA SSIM (1997-09) says Crimea switched to EET/EEST. 2779# Assume it happened in March by not changing the clocks. 2780 3:00 Russia MSK/MSD 1997 2781 3:00 - MSK 1997 Mar lastSun 1:00u 2782 2:00 EU EE%sT 2783 2784############################################################################### 2785 2786# One source shows that Bulgaria, Cyprus, Finland, and Greece observe DST from 2787# the last Sunday in March to the last Sunday in September in 1986. 2788# The source shows Romania changing a day later than everybody else. 2789# 2790# According to Bernard Sieloff's source, Poland is in the MET time zone but 2791# uses the WE DST rules. The Western USSR uses EET+1 and ME DST rules. 2792# Bernard Sieloff's source claims Romania switches on the same day, but at 2793# 00:00 standard time (i.e., 01:00 DST). It also claims that Turkey 2794# switches on the same day, but switches on at 01:00 standard time 2795# and off at 00:00 standard time (i.e., 01:00 DST) 2796 2797# ... 2798# Date: Wed, 28 Jan 87 16:56:27 -0100 2799# From: Tom Hofmann 2800# ... 2801# 2802# ...the European time rules are...standardized since 1981, when 2803# most European coun[tr]ies started DST. Before that year, only 2804# a few countries (UK, France, Italy) had DST, each according 2805# to own national rules. In 1981, however, DST started on 2806# 'Apr firstSun', and not on 'Mar lastSun' as in the following 2807# years... 2808# But also since 1981 there are some more national exceptions 2809# than listed in 'europe': Switzerland, for example, joined DST 2810# one year later, Denmark ended DST on 'Oct 1' instead of 'Sep 2811# lastSun' in 1981---I don't know how they handle now. 2812# 2813# Finally, DST ist always from 'Apr 1' to 'Oct 1' in the 2814# Soviet Union (as far as I know). 2815# 2816# Tom Hofmann, Scientific Computer Center, CIBA-GEIGY AG, 2817# 4002 Basle, Switzerland 2818# ... 2819 2820# ... 2821# Date: Wed, 4 Feb 87 22:35:22 +0100 2822# From: Dik T. Winter 2823# ... 2824# 2825# The information from Tom Hofmann is (as far as I know) not entirely correct. 2826# After a request from chongo at amdahl I tried to retrieve all information 2827# about DST in Europe. I was able to find all from about 1969. 2828# 2829# ...standardization on DST in Europe started in about 1977 with switches on 2830# first Sunday in April and last Sunday in September... 2831# In 1981 UK joined Europe insofar that 2832# the starting day for both shifted to last Sunday in March. And from 1982 2833# the whole of Europe used DST, with switch dates April 1 and October 1 in 2834# the Sov[i]et Union. In 1985 the SU reverted to standard Europe[a]n switch 2835# dates... 2836# 2837# It should also be remembered that time-zones are not constants; e.g. 2838# Portugal switched in 1976 from MET (or CET) to WET with DST... 2839# Note also that though there were rules for switch dates not 2840# all countries abided to these dates, and many individual deviations 2841# occurred, though not since 1982 I believe. Another note: it is always 2842# assumed that DST is 1 hour ahead of normal time, this need not be the 2843# case; at least in the Netherlands there have been times when DST was 2 hours 2844# in advance of normal time. 2845# 2846# ... 2847# dik t. winter, cwi, amsterdam, nederland 2848# ... 2849 2850# From Bob Devine (1988-01-28): 2851# ... 2852# Greece: Last Sunday in April to last Sunday in September (iffy on dates). 2853# Since 1978. Change at midnight. 2854# ... 2855# Monaco: has same DST as France. 2856# ... 2857