1e27ed2014-09-04Henrik Grubbström (Grubba) # Zones that go back beyond the scope of the tz database # This file is in the public domain. # This file is by no means authoritative; if you think you know # better, go ahead and edit it (and please send any changes to # tz@iana.org for general use in the future). For more, please see # the file CONTRIBUTING in the tz distribution.
792c682014-11-13Henrik Grubbström (Grubba) # From Paul Eggert (2014-10-31):
1e27ed2014-09-04Henrik Grubbström (Grubba)  # This file contains data outside the normal scope of the tz database, # in that its zones do not differ from normal tz zones after 1970. # Links in this file point to zones in this file, superseding links in # the file 'backward'. # Although zones in this file may be of some use for analyzing
b401d62018-12-18Henrik Grubbström (Grubba) # pre-1970 timestamps, they are less reliable, cover only a tiny
1e27ed2014-09-04Henrik Grubbström (Grubba) # sliver of the pre-1970 era, and cannot feasibly be improved to cover # most of the era. Because the zones are out of normal scope for the # database, less effort is put into maintaining this file. Many of # the zones were formerly in other source files, but were removed or # replaced by links as their data entries were questionable and/or they
b401d62018-12-18Henrik Grubbström (Grubba) # differed from other zones only in pre-1970 timestamps.
1e27ed2014-09-04Henrik Grubbström (Grubba) 
792c682014-11-13Henrik Grubbström (Grubba) # Unless otherwise specified, the source for data through 1990 is:
1e27ed2014-09-04Henrik Grubbström (Grubba) # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), # San Diego: ACS Publications, Inc. (2003).
792c682014-11-13Henrik Grubbström (Grubba) # Unfortunately this book contains many errors and cites no sources.
1e27ed2014-09-04Henrik Grubbström (Grubba)  # This file is not intended to be compiled standalone, as it # assumes rules from other files. In the tz distribution, use
ac5f542016-02-07Henrik Grubbström (Grubba) # 'make PACKRATDATA=backzone zones' to compile and install this file.
1e27ed2014-09-04Henrik Grubbström (Grubba)  # Zones are sorted by zone name. Each zone is preceded by the # name of the country that the zone is in, along with any other # commentary and rules associated with the entry. # # As explained in the zic man page, the zone columns are: # Zone NAME GMTOFF RULES FORMAT [UNTIL]
792c682014-11-13Henrik Grubbström (Grubba) # Ethiopia # From Paul Eggert (2014-07-31): # Like the Swahili of Kenya and Tanzania, many Ethiopians keep a # 12-hour clock starting at our 06:00, so their "8 o'clock" is our # 02:00 or 14:00. Keep this in mind when you ask the time in Amharic. # # Shanks & Pottenger write that Ethiopia had six narrowly-spaced time # zones between 1870 and 1890, that they merged to 38E50 (2:35:20) in # 1890, and that they switched to 3:00 on 1936-05-05. Perhaps 38E50 # was for Adis Dera. Quite likely the Shanks data entries are wrong # anyway. Zone Africa/Addis_Ababa 2:34:48 - LMT 1870 2:35:20 - ADMT 1936 May 5 # Adis Dera MT 3:00 - EAT # Eritrea Zone Africa/Asmara 2:35:32 - LMT 1870 2:35:32 - AMT 1890 # Asmara Mean Time 2:35:20 - ADMT 1936 May 5 # Adis Dera MT 3:00 - EAT
57f5642015-02-14Henrik Grubbström (Grubba) Link Africa/Asmara Africa/Asmera
792c682014-11-13Henrik Grubbström (Grubba) 
1e27ed2014-09-04Henrik Grubbström (Grubba) # Mali (southern) Zone Africa/Bamako -0:32:00 - LMT 1912 0:00 - GMT 1934 Feb 26
d8fc842017-03-05Henrik Grubbström (Grubba)  -1:00 - -01 1960 Jun 20
1e27ed2014-09-04Henrik Grubbström (Grubba)  0:00 - GMT # Central African Republic Zone Africa/Bangui 1:14:20 - LMT 1912 1:00 - WAT # Gambia Zone Africa/Banjul -1:06:36 - LMT 1912 -1:06:36 - BMT 1935 # Banjul Mean Time
d8fc842017-03-05Henrik Grubbström (Grubba)  -1:00 - -01 1964
1e27ed2014-09-04Henrik Grubbström (Grubba)  0:00 - GMT
a6d1842014-10-16Henrik Grubbström (Grubba) # Malawi Zone Africa/Blantyre 2:20:00 - LMT 1903 Mar 2:00 - CAT
1e27ed2014-09-04Henrik Grubbström (Grubba) # Republic of the Congo Zone Africa/Brazzaville 1:01:08 - LMT 1912 1:00 - WAT
a6d1842014-10-16Henrik Grubbström (Grubba) # Burundi Zone Africa/Bujumbura 1:57:28 - LMT 1890 2:00 - CAT
1e27ed2014-09-04Henrik Grubbström (Grubba) # Guinea Zone Africa/Conakry -0:54:52 - LMT 1912 0:00 - GMT 1934 Feb 26
d8fc842017-03-05Henrik Grubbström (Grubba)  -1:00 - -01 1960
1e27ed2014-09-04Henrik Grubbström (Grubba)  0:00 - GMT # Senegal Zone Africa/Dakar -1:09:44 - LMT 1912
d8fc842017-03-05Henrik Grubbström (Grubba)  -1:00 - -01 1941 Jun
1e27ed2014-09-04Henrik Grubbström (Grubba)  0:00 - GMT
792c682014-11-13Henrik Grubbström (Grubba) # Tanzania Zone Africa/Dar_es_Salaam 2:37:08 - LMT 1931 3:00 - EAT 1948
d8fc842017-03-05Henrik Grubbström (Grubba)  2:45 - +0245 1961
792c682014-11-13Henrik Grubbström (Grubba)  3:00 - EAT # Djibouti Zone Africa/Djibouti 2:52:36 - LMT 1911 Jul 3:00 - EAT
1e27ed2014-09-04Henrik Grubbström (Grubba) # Cameroon # Whitman says they switched to 1:00 in 1920; go with Shanks & Pottenger. Zone Africa/Douala 0:38:48 - LMT 1912 1:00 - WAT # Sierra Leone # From Paul Eggert (2014-08-12): # The following table is from Shanks & Pottenger, but it can't be right. # Whitman gives Mar 31 - Aug 31 for 1931 on. # The International Hydrographic Bulletin, 1932-33, p 63 says that # Sierra Leone would advance its clocks by 20 minutes on 1933-10-01. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
d8fc842017-03-05Henrik Grubbström (Grubba) Rule SL 1935 1942 - Jun 1 0:00 0:40 -0020 Rule SL 1935 1942 - Oct 1 0:00 0 -01 Rule SL 1957 1962 - Jun 1 0:00 1:00 +01
1e27ed2014-09-04Henrik Grubbström (Grubba) Rule SL 1957 1962 - Sep 1 0:00 0 GMT Zone Africa/Freetown -0:53:00 - LMT 1882 -0:53:00 - FMT 1913 Jun # Freetown Mean Time -1:00 SL %s 1957
d8fc842017-03-05Henrik Grubbström (Grubba)  0:00 SL GMT/+01
1e27ed2014-09-04Henrik Grubbström (Grubba) 
a6d1842014-10-16Henrik Grubbström (Grubba) # Botswana # From Paul Eggert (2013-02-21): # Milne says they were regulated by the Cape Town Signal in 1899; # assume they switched to 2:00 when Cape Town did. Zone Africa/Gaborone 1:43:40 - LMT 1885 1:30 - SAST 1903 Mar 2:00 - CAT 1943 Sep 19 2:00 2:00 1:00 CAST 1944 Mar 19 2:00 2:00 - CAT # Zimbabwe Zone Africa/Harare 2:04:12 - LMT 1903 Mar 2:00 - CAT
792c682014-11-13Henrik Grubbström (Grubba) # Uganda Zone Africa/Kampala 2:09:40 - LMT 1928 Jul 3:00 - EAT 1930
d8fc842017-03-05Henrik Grubbström (Grubba)  2:30 - +0230 1948 2:45 - +0245 1957
792c682014-11-13Henrik Grubbström (Grubba)  3:00 - EAT
a6d1842014-10-16Henrik Grubbström (Grubba) # Rwanda Zone Africa/Kigali 2:00:16 - LMT 1935 Jun 2:00 - CAT
1e27ed2014-09-04Henrik Grubbström (Grubba) # Democratic Republic of the Congo (west) Zone Africa/Kinshasa 1:01:12 - LMT 1897 Nov 9 1:00 - WAT # Gabon Zone Africa/Libreville 0:37:48 - LMT 1912 1:00 - WAT
a6d1842014-10-16Henrik Grubbström (Grubba) # Togo Zone Africa/Lome 0:04:52 - LMT 1893 0:00 - GMT
1e27ed2014-09-04Henrik Grubbström (Grubba) # Angola #
07968a2018-09-05Henrik Grubbström (Grubba) # From Paul Eggert (2018-02-16):
1e27ed2014-09-04Henrik Grubbström (Grubba) # Shanks gives 1911-05-26 for the transition to WAT, # evidently confusing the date of the Portuguese decree
07968a2018-09-05Henrik Grubbström (Grubba) # (see Europe/Lisbon) with the date that it took effect.
1e27ed2014-09-04Henrik Grubbström (Grubba) # Zone Africa/Luanda 0:52:56 - LMT 1892
07968a2018-09-05Henrik Grubbström (Grubba)  0:52:04 - LMT 1911 Dec 31 23:00u # Luanda MT?
1e27ed2014-09-04Henrik Grubbström (Grubba)  1:00 - WAT
a6d1842014-10-16Henrik Grubbström (Grubba) # Democratic Republic of the Congo (east) Zone Africa/Lubumbashi 1:49:52 - LMT 1897 Nov 9 2:00 - CAT # Zambia Zone Africa/Lusaka 1:53:08 - LMT 1903 Mar 2:00 - CAT
1e27ed2014-09-04Henrik Grubbström (Grubba)  # Equatorial Guinea #
cca77d2016-10-23Henrik Grubbström (Grubba) # Although Shanks says that Malabo switched from UT +00 to +01 on 1963-12-15,
1e27ed2014-09-04Henrik Grubbström (Grubba) # a Google Books search says that London Calling, Issues 432-465 (1948), p 19,
cca77d2016-10-23Henrik Grubbström (Grubba) # says that Spanish Guinea was at +01 back then. The Shanks data entries
1e27ed2014-09-04Henrik Grubbström (Grubba) # are most likely wrong, but we have nothing better; use them here for now. # Zone Africa/Malabo 0:35:08 - LMT 1912 0:00 - GMT 1963 Dec 15 1:00 - WAT
a6d1842014-10-16Henrik Grubbström (Grubba) # Lesotho Zone Africa/Maseru 1:50:00 - LMT 1903 Mar 2:00 - SAST 1943 Sep 19 2:00 2:00 1:00 SAST 1944 Mar 19 2:00 2:00 - SAST # Swaziland Zone Africa/Mbabane 2:04:24 - LMT 1903 Mar 2:00 - SAST
792c682014-11-13Henrik Grubbström (Grubba) # Somalia Zone Africa/Mogadishu 3:01:28 - LMT 1893 Nov 3:00 - EAT 1931
d8fc842017-03-05Henrik Grubbström (Grubba)  2:30 - +0230 1957
792c682014-11-13Henrik Grubbström (Grubba)  3:00 - EAT
1e27ed2014-09-04Henrik Grubbström (Grubba) # Niger Zone Africa/Niamey 0:08:28 - LMT 1912
d8fc842017-03-05Henrik Grubbström (Grubba)  -1:00 - -01 1934 Feb 26
1e27ed2014-09-04Henrik Grubbström (Grubba)  0:00 - GMT 1960 1:00 - WAT # Mauritania Zone Africa/Nouakchott -1:03:48 - LMT 1912 0:00 - GMT 1934 Feb 26
d8fc842017-03-05Henrik Grubbström (Grubba)  -1:00 - -01 1960 Nov 28
1e27ed2014-09-04Henrik Grubbström (Grubba)  0:00 - GMT # Burkina Faso Zone Africa/Ouagadougou -0:06:04 - LMT 1912 0:00 - GMT # Benin # Whitman says they switched to 1:00 in 1946, not 1934; # go with Shanks & Pottenger. Zone Africa/Porto-Novo 0:10:28 - LMT 1912 Jan 1 0:00 - GMT 1934 Feb 26 1:00 - WAT # Mali (northern) Zone Africa/Timbuktu -0:12:04 - LMT 1912 0:00 - GMT # Anguilla Zone America/Anguilla -4:12:16 - LMT 1912 Mar 2 -4:00 - AST
29be4f2015-03-21Henrik Grubbström (Grubba) # Antigua and Barbuda Zone America/Antigua -4:07:12 - LMT 1912 Mar 2 -5:00 - EST 1951 -4:00 - AST
1e27ed2014-09-04Henrik Grubbström (Grubba) # Chubut, Argentina # The name "Comodoro Rivadavia" exceeds the 14-byte POSIX limit. Zone America/Argentina/ComodRivadavia -4:30:00 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May
d8fc842017-03-05Henrik Grubbström (Grubba)  -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 - -03
1e27ed2014-09-04Henrik Grubbström (Grubba)  # Aruba Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad
d8fc842017-03-05Henrik Grubbström (Grubba)  -4:30 - -0430 1965
1e27ed2014-09-04Henrik Grubbström (Grubba)  -4:00 - AST
ac5f542016-02-07Henrik Grubbström (Grubba) # Cayman Is Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown
07968a2018-09-05Henrik Grubbström (Grubba)  -5:07:10 - KMT 1912 Feb # Kingston Mean Time
ac5f542016-02-07Henrik Grubbström (Grubba)  -5:00 - EST
07968a2018-09-05Henrik Grubbström (Grubba) # United States # # From Paul Eggert (2018-03-18): # America/Chillicothe would be tricky, as it was a city of two-timers: # "To prevent a constant mixup at Chillicothe, caused by the courthouse # clock running on central time and the city running on 'daylight saving' # time, a third hand was added to the dial of the courthouse clock." # -- Ohio news in brief. The Cedarville Herald. 1920-05-21;43(21):1 (col. 5) # https://digitalcommons.cedarville.edu/cedarville_herald/794
1e27ed2014-09-04Henrik Grubbström (Grubba) # Canada Zone America/Coral_Harbour -5:32:40 - LMT 1884 -5:00 NT_YK E%sT 1946 -5:00 - EST # Dominica Zone America/Dominica -4:05:36 - LMT 1911 Jul 1 0:01 # Roseau -4:00 - AST # Baja California # See 'northamerica' for why this entry is here rather than there. Zone America/Ensenada -7:46:28 - LMT 1922 Jan 1 0:13:32 -8:00 - PST 1927 Jun 10 23:00 -7:00 - MST 1930 Nov 16 -8:00 - PST 1942 Apr -7:00 - MST 1949 Jan 14 -8:00 - PST 1996 -8:00 Mexico P%sT # Grenada Zone America/Grenada -4:07:00 - LMT 1911 Jul # St George's -4:00 - AST # Guadeloupe Zone America/Guadeloupe -4:06:08 - LMT 1911 Jun 8 # Pointe-à-Pitre -4:00 - AST
db80cc2015-04-16Henrik Grubbström (Grubba) # Canada # # From Paul Eggert (2015-03-24): # Since 1970 most of Quebec has been like Toronto; see # America/Toronto. However, earlier versions of the tz database # mistakenly relied on data from Shanks & Pottenger saying that Quebec # differed from Ontario after 1970, and the following rules and zone # were created for most of Quebec from the incorrect Shanks & # Pottenger data. The post-1970 entries have been corrected, but the # pre-1970 entries are unchecked and probably have errors. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Mont 1917 only - Mar 25 2:00 1:00 D Rule Mont 1917 only - Apr 24 0:00 0 S Rule Mont 1919 only - Mar 31 2:30 1:00 D Rule Mont 1919 only - Oct 25 2:30 0 S Rule Mont 1920 only - May 2 2:30 1:00 D Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S Rule Mont 1921 only - May 1 2:00 1:00 D Rule Mont 1922 only - Apr 30 2:00 1:00 D Rule Mont 1924 only - May 17 2:00 1:00 D Rule Mont 1924 1926 - Sep lastSun 2:30 0 S Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D Rule Mont 1927 1937 - Sep lastSat 24:00 0 S Rule Mont 1938 1940 - Apr lastSun 0:00 1:00 D Rule Mont 1938 1939 - Sep lastSun 0:00 0 S Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D Rule Mont 1945 1948 - Sep lastSun 2:00 0 S Rule Mont 1949 1950 - Oct lastSun 2:00 0 S Rule Mont 1951 1956 - Sep lastSun 2:00 0 S Rule Mont 1957 1973 - Oct lastSun 2:00 0 S Zone America/Montreal -4:54:16 - LMT 1884 -5:00 Mont E%sT 1918 -5:00 Canada E%sT 1919 -5:00 Mont E%sT 1942 Feb 9 2:00s -5:00 Canada E%sT 1946 -5:00 Mont E%sT 1974 -5:00 Canada E%sT
1e27ed2014-09-04Henrik Grubbström (Grubba) # Montserrat # From Paul Eggert (2006-03-22): # In 1995 volcanic eruptions forced evacuation of Plymouth, the capital. # world.gazetteer.com says Cork Hill is the most populous location now. Zone America/Montserrat -4:08:52 - LMT 1911 Jul 1 0:01 # Cork Hill -4:00 - AST
07968a2018-09-05Henrik Grubbström (Grubba) # United States # # From Paul Eggert (2018-03-18): # America/Palm_Springs would be tricky, as it kept two sets of clocks # in 1946/7. See the following notes. # # From Steve Allen (2018-01-19): # The shadow of Mt. San Jacinto brings darkness very early in the winter # months. In 1946 the chamber of commerce decided to put the clocks of Palm # Springs forward by an hour in the winter. # https://www.desertsun.com/story/life/2017/12/27/palm-springs-struggle-daylight-savings-time-and-idea-sun-time/984416001/ # Desert Sun, Number 18, 1 November 1946 # https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19461101 # has proposal for meeting on front page and page 21. # Desert Sun, Number 19, 5 November 1946 # https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19461105 # reports that Sun Time won at the meeting on front page and page 5. # Desert Sun, Number 37, 7 January 1947 # https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19470107.2.12 # front page reports request to abandon Sun Time and page 7 notes a "class war". # Desert Sun, Number 38, 10 January 1947 # https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19470110 # front page reports on end.
1e27ed2014-09-04Henrik Grubbström (Grubba) # Argentina # This entry was intended for the following areas, but has been superseded by # more detailed zones. # Santa Fe (SF), Entre Ríos (ER), Corrientes (CN), Misiones (MN), Chaco (CC), # Formosa (FM), La Pampa (LP), Chubut (CH) Zone America/Rosario -4:02:40 - LMT 1894 Nov -4:16:44 - CMT 1920 May
d8fc842017-03-05Henrik Grubbström (Grubba)  -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Jul -3:00 - -03 1999 Oct 3 0:00 -4:00 Arg -04/-03 2000 Mar 3 0:00 -3:00 - -03
1e27ed2014-09-04Henrik Grubbström (Grubba)  # St Kitts-Nevis Zone America/St_Kitts -4:10:52 - LMT 1912 Mar 2 # Basseterre -4:00 - AST # St Lucia Zone America/St_Lucia -4:04:00 - LMT 1890 # Castries -4:04:00 - CMT 1912 # Castries Mean Time -4:00 - AST # Virgin Is Zone America/St_Thomas -4:19:44 - LMT 1911 Jul # Charlotte Amalie -4:00 - AST # St Vincent and the Grenadines Zone America/St_Vincent -4:04:56 - LMT 1890 # Kingstown -4:04:56 - KMT 1912 # Kingstown Mean Time -4:00 - AST # British Virgin Is Zone America/Tortola -4:18:28 - LMT 1911 Jul # Road Town -4:00 - AST # McMurdo, Ross Island, since 1955-12
d7462f2016-06-18Henrik Grubbström (Grubba) Zone Antarctica/McMurdo 0 - -00 1956
1e27ed2014-09-04Henrik Grubbström (Grubba)  12:00 NZ NZ%sT Link Antarctica/McMurdo Antarctica/South_Pole
57f5642015-02-14Henrik Grubbström (Grubba) # Yemen # Milne says 2:59:54 was the meridian of the saluting battery at Aden, # and that Yemen was at 1:55:56, the meridian of the Hagia Sophia. Zone Asia/Aden 2:59:54 - LMT 1950
d8fc842017-03-05Henrik Grubbström (Grubba)  3:00 - +03
57f5642015-02-14Henrik Grubbström (Grubba)  # Bahrain Zone Asia/Bahrain 3:22:20 - LMT 1920 # Manamah
d8fc842017-03-05Henrik Grubbström (Grubba)  4:00 - +04 1972 Jun 3:00 - +03
57f5642015-02-14Henrik Grubbström (Grubba) 
1e27ed2014-09-04Henrik Grubbström (Grubba) # India
a6d1842014-10-16Henrik Grubbström (Grubba) # # From Paul Eggert (2014-09-06): # The 1876 Report of the Secretary of the [US] Navy, p 305 says that Madras # civil time was 5:20:57.3. #
1e27ed2014-09-04Henrik Grubbström (Grubba) # From Paul Eggert (2014-08-21): # In tomorrow's The Hindu, Nitya Menon reports that India had two civil time # zones starting in 1884, one in Bombay and one in Calcutta, and that railways
07968a2018-09-05Henrik Grubbström (Grubba) # used a third time zone based on Madras time (80° 18' 30" E). Also,
1e27ed2014-09-04Henrik Grubbström (Grubba) # in 1881 Bombay briefly switched to Madras time, but switched back. See: # http://www.thehindu.com/news/cities/chennai/madras-375-when-madras-clocked-the-time/article6339393.ece #Zone Asia/Chennai [not enough info to complete] # China # Long-shu Time (probably due to Long and Shu being two names of that area) # Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan; # most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong # counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing, # Yangchun, Yangjiang, Yu'nan, and Yunfu. Zone Asia/Chongqing 7:06:20 - LMT 1928 # or Chungking
d8fc842017-03-05Henrik Grubbström (Grubba)  7:00 - +07 1980 May
1e27ed2014-09-04Henrik Grubbström (Grubba)  8:00 PRC C%sT Link Asia/Chongqing Asia/Chungking
6f2cda2014-10-24Henrik Grubbström (Grubba) # Vietnam # From Paul Eggert (2014-10-13): # See Asia/Ho_Chi_Minh for the source for this data. # Trần's book says the 1954-55 transition to 07:00 in Hanoi was in # October 1954, with exact date and time unspecified. Zone Asia/Hanoi 7:03:24 - LMT 1906 Jul 1 7:06:30 - PLMT 1911 May 1
d8fc842017-03-05Henrik Grubbström (Grubba)  7:00 - +07 1942 Dec 31 23:00 8:00 - +08 1945 Mar 14 23:00 9:00 - +09 1945 Sep 2 7:00 - +07 1947 Apr 1 8:00 - +08 1954 Oct 7:00 - +07
6f2cda2014-10-24Henrik Grubbström (Grubba) 
a6d1842014-10-16Henrik Grubbström (Grubba) # China # Changbai Time ("Long-white Time", Long-white = Heilongjiang area) # Heilongjiang (except Mohe county), Jilin Zone Asia/Harbin 8:26:44 - LMT 1928 # or Haerbin
d8fc842017-03-05Henrik Grubbström (Grubba)  8:30 - +0830 1932 Mar
a6d1842014-10-16Henrik Grubbström (Grubba)  8:00 - CST 1940
d8fc842017-03-05Henrik Grubbström (Grubba)  9:00 - +09 1966 May 8:30 - +0830 1980 May
a6d1842014-10-16Henrik Grubbström (Grubba)  8:00 PRC C%sT
1e27ed2014-09-04Henrik Grubbström (Grubba) # far west China Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
d8fc842017-03-05Henrik Grubbström (Grubba)  5:30 - +0530 1940 5:00 - +05 1980 May
1e27ed2014-09-04Henrik Grubbström (Grubba)  8:00 PRC C%sT
57f5642015-02-14Henrik Grubbström (Grubba) # Kuwait Zone Asia/Kuwait 3:11:56 - LMT 1950
d8fc842017-03-05Henrik Grubbström (Grubba)  3:00 - +03
57f5642015-02-14Henrik Grubbström (Grubba)  # Oman # Milne says 3:54:24 was the meridian of the Muscat Tidal Observatory. Zone Asia/Muscat 3:54:24 - LMT 1920
d8fc842017-03-05Henrik Grubbström (Grubba)  4:00 - +04
57f5642015-02-14Henrik Grubbström (Grubba) 
1e27ed2014-09-04Henrik Grubbström (Grubba) # India # From Paul Eggert (2014-08-11), after a heads-up from Stephen Colebourne: # According to a Portuguese decree (1911-05-26)
d8fc842017-03-05Henrik Grubbström (Grubba) # https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
cca77d2016-10-23Henrik Grubbström (Grubba) # Portuguese India switched to UT +05 on 1912-01-01.
1e27ed2014-09-04Henrik Grubbström (Grubba) #Zone Asia/Panaji [not enough info to complete]
6f2cda2014-10-24Henrik Grubbström (Grubba) # Cambodia # From Paul Eggert (2014-10-11): # See Asia/Ho_Chi_Minh for the source for most of this data. Also, guess
cca77d2016-10-23Henrik Grubbström (Grubba) # (1) Cambodia reverted to UT +07 on 1945-09-02, when Vietnam did, and # (2) they also reverted to +07 on 1953-11-09, the date of independence.
6f2cda2014-10-24Henrik Grubbström (Grubba) # These guesses are probably wrong but they're better than guessing no # transitions there. Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jul 1 7:06:30 - PLMT 1911 May 1
d8fc842017-03-05Henrik Grubbström (Grubba)  7:00 - +07 1942 Dec 31 23:00 8:00 - +08 1945 Mar 14 23:00 9:00 - +09 1945 Sep 2 7:00 - +07 1947 Apr 1 8:00 - +08 1953 Nov 9 7:00 - +07
6f2cda2014-10-24Henrik Grubbström (Grubba) 
1e27ed2014-09-04Henrik Grubbström (Grubba) # Israel Zone Asia/Tel_Aviv 2:19:04 - LMT 1880 2:21 - JMT 1918 2:00 Zion I%sT
6f2cda2014-10-24Henrik Grubbström (Grubba) # Laos # From Paul Eggert (2014-10-11): # See Asia/Ho_Chi_Minh for the source for most of this data.
cca77d2016-10-23Henrik Grubbström (Grubba) # Trần's book says that Laos reverted to UT +07 on 1955-04-15. # Also, guess that Laos reverted to +07 on 1945-09-02, when Vietnam did;
6f2cda2014-10-24Henrik Grubbström (Grubba) # this is probably wrong but it's better than guessing no transition. Zone Asia/Vientiane 6:50:24 - LMT 1906 Jul 1 7:06:30 - PLMT 1911 May 1
d8fc842017-03-05Henrik Grubbström (Grubba)  7:00 - +07 1942 Dec 31 23:00 8:00 - +08 1945 Mar 14 23:00 9:00 - +09 1945 Sep 2 7:00 - +07 1947 Apr 1 8:00 - +08 1955 Apr 15 7:00 - +07
6f2cda2014-10-24Henrik Grubbström (Grubba) 
1e27ed2014-09-04Henrik Grubbström (Grubba) # Jan Mayen # From Whitman:
d8fc842017-03-05Henrik Grubbström (Grubba) Zone Atlantic/Jan_Mayen -1:00 - -01
1e27ed2014-09-04Henrik Grubbström (Grubba)  # St Helena Zone Atlantic/St_Helena -0:22:48 - LMT 1890 # Jamestown -0:22:48 - JMT 1951 # Jamestown Mean Time 0:00 - GMT # Northern Ireland Zone Europe/Belfast -0:23:40 - LMT 1880 Aug 2 -0:25:21 - DMT 1916 May 21 2:00 # DMT = Dublin/Dunsink MT -0:25:21 1:00 IST 1916 Oct 1 2:00s # IST = Irish Summer Time 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 # Guernsey # Data from Joseph S. Myers
8de8e92017-11-17Henrik Grubbström (Grubba) # https://mm.icann.org/pipermail/tz/2013-September/019883.html
1e27ed2014-09-04Henrik Grubbström (Grubba) # References to be added
07968a2018-09-05Henrik Grubbström (Grubba) # LMT is for Town Church, St. Peter Port, 49° 27' 17" N, 2° 32' 10" W.
8de8e92017-11-17Henrik Grubbström (Grubba) Zone Europe/Guernsey -0:10:09 - LMT 1913 Jun 18
1e27ed2014-09-04Henrik Grubbström (Grubba)  0:00 GB-Eire %s 1940 Jul 2 1:00 C-Eur CE%sT 1945 May 8 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 # Isle of Man # # From Lester Caine (2013-09-04): # The Isle of Man legislation is now on-line at
8de8e92017-11-17Henrik Grubbström (Grubba) # <https://www.legislation.gov.im>, starting with the original Statutory
1e27ed2014-09-04Henrik Grubbström (Grubba) # Time Act in 1883 and including additional confirmation of some of # the dates of the 'Summer Time' orders originating at # Westminster. There is a little uncertainty as to the starting date
8de8e92017-11-17Henrik Grubbström (Grubba) # of the first summer time in 1916 which may have been announced a
1e27ed2014-09-04Henrik Grubbström (Grubba) # couple of days late. There is still a substantial number of # documents to work through, but it is thought that every GB change # was also implemented on the island. # # AT4 of 1883 - The Statutory Time et cetera Act 1883 - # LMT Location - 54.1508N -4.4814E - Tynwald Hill ( Manx parliament )
57f5642015-02-14Henrik Grubbström (Grubba) Zone Europe/Isle_of_Man -0:17:55 - LMT 1883 Mar 30 0:00s
1e27ed2014-09-04Henrik Grubbström (Grubba)  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 # Jersey # Data from Joseph S. Myers
8de8e92017-11-17Henrik Grubbström (Grubba) # https://mm.icann.org/pipermail/tz/2013-September/019883.html
1e27ed2014-09-04Henrik Grubbström (Grubba) # References to be added
07968a2018-09-05Henrik Grubbström (Grubba) # LMT is for Parish Church, St. Helier, 49° 11' 0.57" N, 2° 6' 24.33" W.
8de8e92017-11-17Henrik Grubbström (Grubba) Zone Europe/Jersey -0:08:26 - LMT 1898 Jun 11 16:00u
1e27ed2014-09-04Henrik Grubbström (Grubba)  0:00 GB-Eire %s 1940 Jul 2 1:00 C-Eur CE%sT 1945 May 8 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 # Slovenia Zone Europe/Ljubljana 0:58:04 - LMT 1884 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s 1:00 - CET 1982 Nov 27 1:00 EU CE%sT # Bosnia and Herzegovina Zone Europe/Sarajevo 1:13:40 - LMT 1884 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s 1:00 - CET 1982 Nov 27 1:00 EU CE%sT # Macedonia Zone Europe/Skopje 1:25:44 - LMT 1884 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s 1:00 - CET 1982 Nov 27 1:00 EU CE%sT # Moldova / Transnistria Zone Europe/Tiraspol 1:58:32 - 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 1991 Mar 31 2:00 2:00 Russia EE%sT 1992 Jan 19 2:00 3:00 Russia MSK/MSD # Liechtenstein Zone Europe/Vaduz 0:38:04 - LMT 1894 Jun 1:00 - CET 1981 1:00 EU CE%sT # Croatia Zone Europe/Zagreb 1:03:52 - LMT 1884 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s 1:00 - CET 1982 Nov 27 1:00 EU CE%sT
792c682014-11-13Henrik Grubbström (Grubba) # Madagascar Zone Indian/Antananarivo 3:10:04 - LMT 1911 Jul 3:00 - EAT 1954 Feb 27 23:00s 3:00 1:00 EAST 1954 May 29 23:00s 3:00 - EAT # Comoros Zone Indian/Comoro 2:53:04 - LMT 1911 Jul # Moroni, Gran Comoro 3:00 - EAT # Mayotte Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou 3:00 - EAT
1e27ed2014-09-04Henrik Grubbström (Grubba) # US minor outlying islands Zone Pacific/Johnston -10:00 - HST
29be4f2015-03-21Henrik Grubbström (Grubba)  # US minor outlying islands # # From Mark Brader (2005-01-23): # [Fallacies and Fantasies of Air Transport History, by R.E.G. Davies, # published 1994 by Paladwr Press, McLean, VA, USA; ISBN 0-9626483-5-3] # reproduced a Pan American Airways timetable from 1936, for their weekly # "Orient Express" flights between San Francisco and Manila, and connecting # flights to Chicago and the US East Coast. As it uses some time zone # designations that I've never seen before:.... # Fri. 6:30A Lv. HONOLOLU (Pearl Harbor), H.I. H.L.T. Ar. 5:30P Sun. # " 3:00P Ar. MIDWAY ISLAND . . . . . . . . . M.L.T. Lv. 6:00A " # Zone Pacific/Midway -11:49:28 - LMT 1901
d8fc842017-03-05Henrik Grubbström (Grubba)  -11:00 - -11 1956 Jun 3 -11:00 1:00 -10 1956 Sep 2 -11:00 - -11
29be4f2015-03-21Henrik Grubbström (Grubba)  # N Mariana Is Zone Pacific/Saipan -14:17:00 - LMT 1844 Dec 31 9:43:00 - LMT 1901
d8fc842017-03-05Henrik Grubbström (Grubba)  9:00 - +09 1969 Oct 10:00 - +10 2000 Dec 23
29be4f2015-03-21Henrik Grubbström (Grubba)  10:00 - ChST # Chamorro Standard Time