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