1 # Zones that go back beyond the scope of the tz database
3 # This file is in the public domain.
5 # This file is by no means authoritative; if you think you know
6 # better, go ahead and edit it (and please send any changes to
7 # tz@iana.org for general use in the future). For more, please see
8 # the file CONTRIBUTING in the tz distribution.
11 # From Paul Eggert (2014-10-31):
13 # This file contains data outside the normal scope of the tz database,
14 # in that its zones do not differ from normal tz zones after 1970.
15 # Links in this file point to zones in this file, superseding links in
16 # the file 'backward'.
18 # Although zones in this file may be of some use for analyzing
19 # pre-1970 timestamps, they are less reliable, cover only a tiny
20 # sliver of the pre-1970 era, and cannot feasibly be improved to cover
21 # most of the era. Because the zones are out of normal scope for the
22 # database, less effort is put into maintaining this file. Many of
23 # the zones were formerly in other source files, but were removed or
24 # replaced by links as their data entries were questionable and/or they
25 # differed from other zones only in pre-1970 timestamps.
27 # Unless otherwise specified, the source for data through 1990 is:
28 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
29 # San Diego: ACS Publications, Inc. (2003).
30 # Unfortunately this book contains many errors and cites no sources.
32 # This file is not intended to be compiled standalone, as it
33 # assumes rules from other files. In the tz distribution, use
34 # 'make PACKRATDATA=backzone zones' to compile and install this file.
37 # From Paul Eggert (2020-04-15):
38 # The following remarks should be incorporated into this table sometime.
39 # Patches in 'git format-patch' format would be welcome.
41 # From Phake Nick (2020-04-15):
42 # ... the historical timezone data for those China zones seems to be
43 # incorrect. The transition to GMT+8 date given there for these zones
44 # were 1980 which also contradict the file description that they do
45 # not disagree with normal zone after 1970. According to sources that
46 # have also been cited in the asia file, except Xinjiang and Tibet,
47 # they should have adopted the Beijing Time from around 1949/1950
48 # depends on exactly when each of those cities were taken over by the
49 # communist army. And they should also follow the DST setting of
50 # Asia/Shanghai after that point of time. In addition,
51 # http://gaz.ncl.edu.tw/detail.jsp?sysid=E1091792 the document from
52 # Chongqing Nationalist government say in year 1945 all of China
53 # should adopt summer time due to the war (not sure whether it
54 # continued after WWII ends)(Probably only enforced in area under
55 # their rule at the time?) The Asia/Harbin's 1932 and 1940 entry
56 # should also be incorrect. As per sources recorded at
57 # https://wiki.suikawiki.org/n/%E6%BA%80%E5%B7%9E%E5%9B%BD%E3%81%AE%E6%A8%99%E6%BA%96%E6%99%82
58 # , in 1932 Harbin should have adopted UTC+8:00 instead of data
59 # currently listed in the tz database according to official
60 # announcement from Manchuko. And they should have adopted GMT+9 in
61 # 1937 January 1st according to official announcement at the time
62 # being cited on the webpage.
65 # Zones are sorted by zone name. Each zone is preceded by the
66 # name of the country that the zone is in, along with any other
67 # commentary and rules associated with the entry.
69 # As explained in the zic man page, the zone columns are:
70 # Zone NAME STDOFF RULES FORMAT [UNTIL]
73 # From Paul Eggert (2014-07-31):
74 # Like the Swahili of Kenya and Tanzania, many Ethiopians keep a
75 # 12-hour clock starting at our 06:00, so their "8 o'clock" is our
76 # 02:00 or 14:00. Keep this in mind when you ask the time in Amharic.
78 # Shanks & Pottenger write that Ethiopia had six narrowly-spaced time
79 # zones between 1870 and 1890, that they merged to 38E50 (2:35:20) in
80 # 1890, and that they switched to 3:00 on 1936-05-05. Perhaps 38E50
81 # was for Adis Dera. Quite likely the Shanks data entries are wrong
83 Zone Africa/Addis_Ababa 2:34:48 - LMT 1870
84 2:35:20 - ADMT 1936 May 5 # Adis Dera MT
88 Zone Africa/Asmara 2:35:32 - LMT 1870
89 2:35:32 - AMT 1890 # Asmara Mean Time
90 2:35:20 - ADMT 1936 May 5 # Adis Dera MT
92 Link Africa/Asmara Africa/Asmera
95 Zone Africa/Bamako -0:32:00 - LMT 1912
96 0:00 - GMT 1934 Feb 26
97 -1:00 - -01 1960 Jun 20
100 # Central African Republic
101 Zone Africa/Bangui 1:14:20 - LMT 1912
105 Zone Africa/Banjul -1:06:36 - LMT 1912
106 -1:06:36 - BMT 1935 # Banjul Mean Time
111 Zone Africa/Blantyre 2:20:00 - LMT 1903 Mar
114 # Republic of the Congo
115 Zone Africa/Brazzaville 1:01:08 - LMT 1912
119 Zone Africa/Bujumbura 1:57:28 - LMT 1890
123 Zone Africa/Conakry -0:54:52 - LMT 1912
124 0:00 - GMT 1934 Feb 26
129 Zone Africa/Dakar -1:09:44 - LMT 1912
134 Zone Africa/Dar_es_Salaam 2:37:08 - LMT 1931
140 Zone Africa/Djibouti 2:52:36 - LMT 1911 Jul
144 # Whitman says they switched to 1:00 in 1920; go with Shanks & Pottenger.
145 Zone Africa/Douala 0:38:48 - LMT 1912
148 # From Paul Eggert (2014-08-12):
149 # The following table is from Shanks & Pottenger, but it can't be right.
150 # Whitman gives Mar 31 - Aug 31 for 1931 on.
151 # The International Hydrographic Bulletin, 1932-33, p 63 says that
152 # Sierra Leone would advance its clocks by 20 minutes on 1933-10-01.
153 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S
154 Rule SL 1935 1942 - Jun 1 0:00 0:40 -0020
155 Rule SL 1935 1942 - Oct 1 0:00 0 -01
156 Rule SL 1957 1962 - Jun 1 0:00 1:00 +01
157 Rule SL 1957 1962 - Sep 1 0:00 0 GMT
158 Zone Africa/Freetown -0:53:00 - LMT 1882
159 -0:53:00 - FMT 1913 Jun # Freetown Mean Time
164 # From Paul Eggert (2013-02-21):
165 # Milne says they were regulated by the Cape Town Signal in 1899;
166 # assume they switched to 2:00 when Cape Town did.
167 Zone Africa/Gaborone 1:43:40 - LMT 1885
169 2:00 - CAT 1943 Sep 19 2:00
170 2:00 1:00 CAST 1944 Mar 19 2:00
174 Zone Africa/Harare 2:04:12 - LMT 1903 Mar
178 Zone Africa/Kampala 2:09:40 - LMT 1928 Jul
185 Zone Africa/Kigali 2:00:16 - LMT 1935 Jun
188 # Democratic Republic of the Congo (west)
189 Zone Africa/Kinshasa 1:01:12 - LMT 1897 Nov 9
193 Zone Africa/Libreville 0:37:48 - LMT 1912
197 Zone Africa/Lome 0:04:52 - LMT 1893
202 # From Paul Eggert (2018-02-16):
203 # Shanks gives 1911-05-26 for the transition to WAT,
204 # evidently confusing the date of the Portuguese decree
205 # (see Europe/Lisbon) with the date that it took effect.
207 Zone Africa/Luanda 0:52:56 - LMT 1892
208 0:52:04 - LMT 1911 Dec 31 23:00u # Luanda MT?
211 # Democratic Republic of the Congo (east)
212 Zone Africa/Lubumbashi 1:49:52 - LMT 1897 Nov 9
216 Zone Africa/Lusaka 1:53:08 - LMT 1903 Mar
221 # Although Shanks says that Malabo switched from UT +00 to +01 on 1963-12-15,
222 # a Google Books search says that London Calling, Issues 432-465 (1948), p 19,
223 # says that Spanish Guinea was at +01 back then. The Shanks data entries
224 # are most likely wrong, but we have nothing better; use them here for now.
226 Zone Africa/Malabo 0:35:08 - LMT 1912
227 0:00 - GMT 1963 Dec 15
231 Zone Africa/Maseru 1:50:00 - LMT 1903 Mar
232 2:00 - SAST 1943 Sep 19 2:00
233 2:00 1:00 SAST 1944 Mar 19 2:00
236 # Eswatini (formerly Swaziland)
237 Zone Africa/Mbabane 2:04:24 - LMT 1903 Mar
241 Zone Africa/Mogadishu 3:01:28 - LMT 1893 Nov
247 Zone Africa/Niamey 0:08:28 - LMT 1912
248 -1:00 - -01 1934 Feb 26
253 Zone Africa/Nouakchott -1:03:48 - LMT 1912
254 0:00 - GMT 1934 Feb 26
255 -1:00 - -01 1960 Nov 28
259 Zone Africa/Ouagadougou -0:06:04 - LMT 1912
263 # Whitman says they switched to 1:00 in 1946, not 1934;
264 # go with Shanks & Pottenger.
265 Zone Africa/Porto-Novo 0:10:28 - LMT 1912 Jan 1
266 0:00 - GMT 1934 Feb 26
270 Zone Africa/Timbuktu -0:12:04 - LMT 1912
274 Zone America/Anguilla -4:12:16 - LMT 1912 Mar 2
277 # Antigua and Barbuda
278 Zone America/Antigua -4:07:12 - LMT 1912 Mar 2
283 # The name "Comodoro Rivadavia" exceeds the 14-byte POSIX limit.
284 Zone America/Argentina/ComodRivadavia -4:30:00 - LMT 1894 Oct 31
285 -4:16:48 - CMT 1920 May
287 -4:00 Arg -04/-03 1969 Oct 5
288 -3:00 Arg -03/-02 1991 Mar 3
289 -4:00 - -04 1991 Oct 20
290 -3:00 Arg -03/-02 1999 Oct 3
291 -4:00 Arg -04/-03 2000 Mar 3
292 -3:00 - -03 2004 Jun 1
293 -4:00 - -04 2004 Jun 20
297 Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad
302 Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown
303 -5:07:10 - KMT 1912 Feb # Kingston Mean Time
308 # From Paul Eggert (2018-03-18):
309 # America/Chillicothe would be tricky, as it was a city of two-timers:
310 # "To prevent a constant mixup at Chillicothe, caused by the courthouse
311 # clock running on central time and the city running on 'daylight saving'
312 # time, a third hand was added to the dial of the courthouse clock."
313 # -- Ohio news in brief. The Cedarville Herald. 1920-05-21;43(21):1 (col. 5)
314 # https://digitalcommons.cedarville.edu/cedarville_herald/794
317 Zone America/Coral_Harbour -5:32:40 - LMT 1884
318 -5:00 NT_YK E%sT 1946
322 Zone America/Dominica -4:05:36 - LMT 1911 Jul 1 0:01 # Roseau
326 # See 'northamerica' for why this entry is here rather than there.
327 Zone America/Ensenada -7:46:28 - LMT 1922 Jan 1 0:13:32
328 -8:00 - PST 1927 Jun 10 23:00
329 -7:00 - MST 1930 Nov 16
331 -7:00 - MST 1949 Jan 14
336 Zone America/Grenada -4:07:00 - LMT 1911 Jul # St George's
340 Zone America/Guadeloupe -4:06:08 - LMT 1911 Jun 8 # Pointe-à-Pitre
345 # From Paul Eggert (2015-03-24):
346 # Since 1970 most of Quebec has been like Toronto; see
347 # America/Toronto. However, earlier versions of the tz database
348 # mistakenly relied on data from Shanks & Pottenger saying that Quebec
349 # differed from Ontario after 1970, and the following rules and zone
350 # were created for most of Quebec from the incorrect Shanks &
351 # Pottenger data. The post-1970 entries have been corrected, but the
352 # pre-1970 entries are unchecked and probably have errors.
354 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S
355 Rule Mont 1917 only - Mar 25 2:00 1:00 D
356 Rule Mont 1917 only - Apr 24 0:00 0 S
357 Rule Mont 1919 only - Mar 31 2:30 1:00 D
358 Rule Mont 1919 only - Oct 25 2:30 0 S
359 Rule Mont 1920 only - May 2 2:30 1:00 D
360 Rule Mont 1920 1922 - Oct Sun>=1 2:30 0 S
361 Rule Mont 1921 only - May 1 2:00 1:00 D
362 Rule Mont 1922 only - Apr 30 2:00 1:00 D
363 Rule Mont 1924 only - May 17 2:00 1:00 D
364 Rule Mont 1924 1926 - Sep lastSun 2:30 0 S
365 Rule Mont 1925 1926 - May Sun>=1 2:00 1:00 D
366 Rule Mont 1927 1937 - Apr lastSat 24:00 1:00 D
367 Rule Mont 1927 1937 - Sep lastSat 24:00 0 S
368 Rule Mont 1938 1940 - Apr lastSun 0:00 1:00 D
369 Rule Mont 1938 1939 - Sep lastSun 0:00 0 S
370 Rule Mont 1946 1973 - Apr lastSun 2:00 1:00 D
371 Rule Mont 1945 1948 - Sep lastSun 2:00 0 S
372 Rule Mont 1949 1950 - Oct lastSun 2:00 0 S
373 Rule Mont 1951 1956 - Sep lastSun 2:00 0 S
374 Rule Mont 1957 1973 - Oct lastSun 2:00 0 S
375 Zone America/Montreal -4:54:16 - LMT 1884
377 -5:00 Canada E%sT 1919
378 -5:00 Mont E%sT 1942 Feb 9 2:00s
379 -5:00 Canada E%sT 1946
384 # From Paul Eggert (2006-03-22):
385 # In 1995 volcanic eruptions forced evacuation of Plymouth, the capital.
386 # world.gazetteer.com says Cork Hill is the most populous location now.
387 Zone America/Montserrat -4:08:52 - LMT 1911 Jul 1 0:01 # Cork Hill
392 # From Paul Eggert (2018-03-18):
393 # America/Palm_Springs would be tricky, as it kept two sets of clocks
394 # in 1946/7. See the following notes.
396 # From Steve Allen (2018-01-19):
397 # The shadow of Mt. San Jacinto brings darkness very early in the winter
398 # months. In 1946 the chamber of commerce decided to put the clocks of Palm
399 # Springs forward by an hour in the winter.
400 # https://www.desertsun.com/story/life/2017/12/27/palm-springs-struggle-daylight-savings-time-and-idea-sun-time/984416001/
401 # Desert Sun, Number 18, 1 November 1946
402 # https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19461101
403 # has proposal for meeting on front page and page 21.
404 # Desert Sun, Number 19, 5 November 1946
405 # https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19461105
406 # reports that Sun Time won at the meeting on front page and page 5.
407 # Desert Sun, Number 37, 7 January 1947
408 # https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19470107.2.12
409 # front page reports request to abandon Sun Time and page 7 notes a "class war".
410 # Desert Sun, Number 38, 10 January 1947
411 # https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19470110
412 # front page reports on end.
415 # This entry was intended for the following areas, but has been superseded by
416 # more detailed zones.
417 # Santa Fe (SF), Entre Ríos (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
418 # Formosa (FM), La Pampa (LP), Chubut (CH)
419 Zone America/Rosario -4:02:40 - LMT 1894 Nov
420 -4:16:44 - CMT 1920 May
422 -4:00 Arg -04/-03 1969 Oct 5
423 -3:00 Arg -03/-02 1991 Jul
424 -3:00 - -03 1999 Oct 3 0:00
425 -4:00 Arg -04/-03 2000 Mar 3 0:00
429 Zone America/St_Kitts -4:10:52 - LMT 1912 Mar 2 # Basseterre
433 Zone America/St_Lucia -4:04:00 - LMT 1890 # Castries
434 -4:04:00 - CMT 1912 # Castries Mean Time
438 Zone America/St_Thomas -4:19:44 - LMT 1911 Jul # Charlotte Amalie
441 # St Vincent and the Grenadines
442 Zone America/St_Vincent -4:04:56 - LMT 1890 # Kingstown
443 -4:04:56 - KMT 1912 # Kingstown Mean Time
447 Zone America/Tortola -4:18:28 - LMT 1911 Jul # Road Town
450 # McMurdo, Ross Island, since 1955-12
451 Zone Antarctica/McMurdo 0 - -00 1956
453 Link Antarctica/McMurdo Antarctica/South_Pole
456 # Milne says 2:59:54 was the meridian of the saluting battery at Aden,
457 # and that Yemen was at 1:55:56, the meridian of the Hagia Sophia.
458 Zone Asia/Aden 2:59:54 - LMT 1950
463 # From Paul Eggert (2020-07-23):
464 # Most of this data comes from:
465 # Stewart A. Why Gulf Standard Time is far from standard: the fascinating story
466 # behind the time zone's invention. The National (Abu Dhabi). 2020-07-22.
467 # https://www.thenational.ae/arts-culture/why-gulf-standard-time-is-far-from-standard-the-fascinating-story-behind-the-time-zone-s-invention-1.1052589
468 # Stewart writes that before 1941 some companies in Bahrain were at +0330 and
469 # others at +0323. Reginald George Alban, a British political agent based in
470 # Manama, worked to standardize this, and from 1941-07-20 Bahrain was at
471 # +0330. However, BOAC asked that clocks be moved to gain more light at day's
472 # end, so Bahrain switched to +04 on 1944-01-01.
474 # Re the 1941 transition, Stewart privately sent me this citation:
475 # "File 16/53 Enquiries Re: Calculation of Local Time", British Library: India
476 # Office Records and Private Papers, IOR/R/15/2/1564, in Qatar Digital Library
477 # https://www.qdl.qa/archive/81055/vdc_100000000282.0x00012b
478 # It says there was no real standard in Bahrain before 1941-07-20.
479 # +0330 was used by steamers of the British India Co, by Petroleum Concessions
480 # and by Cable & Wireless; +0323 was used by the Eastern Bank Ltd, BOAC, and
481 # Bahrein Petroleum (Bapco), and California Arabian Standard Oil Co (Casoc)
482 # adopted DST effective 1941-05-24. Alban suggested adopting DST, R.B. Coomb
483 # of C&W countersuggested +0330, and although C.A. Rodstrom of Casoc (formerly
484 # of Bapco) stated that Bahrain had formerly used +0330 before Bapco arrived
485 # but Bapco switched to +0323 because of "constant confusion", the consensus
486 # was +0330. The government adopted +0330 in 1941-07-20 and companies seem to
487 # have switched by 08-01. No time of day was given for the 1940s transitions.
488 Zone Asia/Bahrain 3:22:20 - LMT 1941 Jul 20 # Manamah
489 3:30 - +0330 1944 Jan 1
495 # From Paul Eggert (2014-09-06):
496 # The 1876 Report of the Secretary of the [US] Navy, p 305 says that Madras
497 # civil time was 5:20:57.3.
499 # From Paul Eggert (2014-08-21):
500 # In tomorrow's The Hindu, Nitya Menon reports that India had two civil time
501 # zones starting in 1884, one in Bombay and one in Calcutta, and that railways
502 # used a third time zone based on Madras time (80° 18' 30" E). Also,
503 # in 1881 Bombay briefly switched to Madras time, but switched back. See:
504 # http://www.thehindu.com/news/cities/chennai/madras-375-when-madras-clocked-the-time/article6339393.ece
505 #Zone Asia/Chennai [not enough info to complete]
508 # Long-shu Time (probably due to Long and Shu being two names of that area)
509 # Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan;
510 # most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong
511 # counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing,
512 # Yangchun, Yangjiang, Yu'nan, and Yunfu.
513 Zone Asia/Chongqing 7:06:20 - LMT 1928 # or Chungking
516 Link Asia/Chongqing Asia/Chungking
519 # From Paul Eggert (2014-10-13):
520 # See Asia/Ho_Chi_Minh for the source for this data.
521 # Trần's book says the 1954-55 transition to 07:00 in Hanoi was in
522 # October 1954, with exact date and time unspecified.
523 Zone Asia/Hanoi 7:03:24 - LMT 1906 Jul 1
524 7:06:30 - PLMT 1911 May 1
525 7:00 - +07 1942 Dec 31 23:00
526 8:00 - +08 1945 Mar 14 23:00
527 9:00 - +09 1945 Sep 2
528 7:00 - +07 1947 Apr 1
533 # Changbai Time ("Long-white Time", Long-white = Heilongjiang area)
534 # Heilongjiang (except Mohe county), Jilin
535 Zone Asia/Harbin 8:26:44 - LMT 1928 # or Haerbin
536 8:30 - +0830 1932 Mar
539 8:30 - +0830 1980 May
543 Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
549 Zone Asia/Kuwait 3:11:56 - LMT 1950
554 # Milne says 3:54:24 was the meridian of the Muscat Tidal Observatory.
555 Zone Asia/Muscat 3:54:24 - LMT 1920
559 # From Paul Eggert (2014-08-11), after a heads-up from Stephen Colebourne:
560 # According to a Portuguese decree (1911-05-26)
561 # https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
562 # Portuguese India switched to UT +05 on 1912-01-01.
563 #Zone Asia/Panaji [not enough info to complete]
567 # From an adoptive daughter of the late Cambodian ruler Prince Sihanouk,
568 # via Alois Treindl (2019-08-08):
570 # King Sihanouk said that, during the Japanese occupation, starting with
571 # what historians refer to as "le coup de force du 9 mars 1945", Cambodia,
572 # like the entire French Indochina, used Tokyo time zone. After Japan
573 # surrendered, 2 September 1945, Cambodia fell under French rule again and
574 # adopted Hanoi time zone again.
576 # However, on 7 January 1946, Sihanouk and Tioulong managed to obtain a
577 # status of "internal autonomy" from the government of Charles de Gaulle.
578 # Although many fields remained under the administration of the French
579 # (customs, taxes, justice, defence, foreign affairs, etc.), the Cambodian
580 # administration was responsible for religious matters and traditional
581 # celebrations, which included our calendar and time. The time zone was GMT
582 # + 7 and _no_ DST was applied.
584 # After Sihanouk and Tioulong achieved full independence, on 9 November 1953,
585 # GMT + 7 was maintained.
587 # From Paul Eggert (2019-08-26):
588 # See Asia/Ho_Chi_Minh for the source for most of rest of this data.
590 Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jul 1
591 7:06:30 - PLMT 1911 May 1
592 7:00 - +07 1942 Dec 31 23:00
593 8:00 - +08 1945 Mar 14 23:00
594 9:00 - +09 1945 Sep 2
598 Zone Asia/Tel_Aviv 2:19:04 - LMT 1880
603 # From Paul Eggert (2014-10-11):
604 # See Asia/Ho_Chi_Minh for the source for most of this data.
605 # Trần's book says that Laos reverted to UT +07 on 1955-04-15.
606 # Also, guess that Laos reverted to +07 on 1945-09-02, when Vietnam did;
607 # this is probably wrong but it's better than guessing no transition.
608 Zone Asia/Vientiane 6:50:24 - LMT 1906 Jul 1
609 7:06:30 - PLMT 1911 May 1
610 7:00 - +07 1942 Dec 31 23:00
611 8:00 - +08 1945 Mar 14 23:00
612 9:00 - +09 1945 Sep 2
613 7:00 - +07 1947 Apr 1
614 8:00 - +08 1955 Apr 15
619 Zone Atlantic/Jan_Mayen -1:00 - -01
622 Zone Atlantic/St_Helena -0:22:48 - LMT 1890 # Jamestown
623 -0:22:48 - JMT 1951 # Jamestown Mean Time
627 Zone Australia/Currie 9:35:28 - LMT 1895 Sep
628 10:00 AT AE%sT 1919 Oct 24
629 10:00 Aus AE%sT 1968 Oct 15
633 Zone Europe/Belfast -0:23:40 - LMT 1880 Aug 2
634 -0:25:21 - DMT 1916 May 21 2:00
635 # DMT = Dublin/Dunsink MT
636 -0:25:21 1:00 IST 1916 Oct 1 2:00s
637 # IST = Irish Summer Time
638 0:00 GB-Eire %s 1968 Oct 27
639 1:00 - BST 1971 Oct 31 2:00u
644 # Data from Joseph S. Myers
645 # https://mm.icann.org/pipermail/tz/2013-September/019883.html
646 # References to be added
647 # LMT is for Town Church, St. Peter Port, 49° 27' 17" N, 2° 32' 10" W.
648 Zone Europe/Guernsey -0:10:09 - LMT 1913 Jun 18
649 0:00 GB-Eire %s 1940 Jul 2
650 1:00 C-Eur CE%sT 1945 May 8
651 0:00 GB-Eire %s 1968 Oct 27
652 1:00 - BST 1971 Oct 31 2:00u
658 # From Lester Caine (2013-09-04):
659 # The Isle of Man legislation is now on-line at
660 # <https://www.legislation.gov.im>, starting with the original Statutory
661 # Time Act in 1883 and including additional confirmation of some of
662 # the dates of the 'Summer Time' orders originating at
663 # Westminster. There is a little uncertainty as to the starting date
664 # of the first summer time in 1916 which may have been announced a
665 # couple of days late. There is still a substantial number of
666 # documents to work through, but it is thought that every GB change
667 # was also implemented on the island.
669 # AT4 of 1883 - The Statutory Time et cetera Act 1883 -
670 # LMT Location - 54.1508N -4.4814E - Tynwald Hill ( Manx parliament )
671 Zone Europe/Isle_of_Man -0:17:55 - LMT 1883 Mar 30 0:00s
672 0:00 GB-Eire %s 1968 Oct 27
673 1:00 - BST 1971 Oct 31 2:00u
678 # Data from Joseph S. Myers
679 # https://mm.icann.org/pipermail/tz/2013-September/019883.html
680 # References to be added
681 # LMT is for Parish Church, St. Helier, 49° 11' 0.57" N, 2° 6' 24.33" W.
682 Zone Europe/Jersey -0:08:26 - LMT 1898 Jun 11 16:00u
683 0:00 GB-Eire %s 1940 Jul 2
684 1:00 C-Eur CE%sT 1945 May 8
685 0:00 GB-Eire %s 1968 Oct 27
686 1:00 - BST 1971 Oct 31 2:00u
691 Zone Europe/Ljubljana 0:58:04 - LMT 1884
692 1:00 - CET 1941 Apr 18 23:00
693 1:00 C-Eur CE%sT 1945 May 8 2:00s
694 1:00 1:00 CEST 1945 Sep 16 2:00s
695 1:00 - CET 1982 Nov 27
698 # Bosnia and Herzegovina
699 Zone Europe/Sarajevo 1:13:40 - LMT 1884
700 1:00 - CET 1941 Apr 18 23:00
701 1:00 C-Eur CE%sT 1945 May 8 2:00s
702 1:00 1:00 CEST 1945 Sep 16 2:00s
703 1:00 - CET 1982 Nov 27
707 Zone Europe/Skopje 1:25:44 - LMT 1884
708 1:00 - CET 1941 Apr 18 23:00
709 1:00 C-Eur CE%sT 1945 May 8 2:00s
710 1:00 1:00 CEST 1945 Sep 16 2:00s
711 1:00 - CET 1982 Nov 27
714 # Moldova / Transnistria
715 Zone Europe/Tiraspol 1:58:32 - LMT 1880
716 1:55 - CMT 1918 Feb 15 # Chisinau MT
717 1:44:24 - BMT 1931 Jul 24 # Bucharest MT
718 2:00 Romania EE%sT 1940 Aug 15
719 2:00 1:00 EEST 1941 Jul 17
720 1:00 C-Eur CE%sT 1944 Aug 24
721 3:00 Russia MSK/MSD 1991 Mar 31 2:00
722 2:00 Russia EE%sT 1992 Jan 19 2:00
726 Zone Europe/Vaduz 0:38:04 - LMT 1894 Jun
727 1:00 Swiss CE%sT 1981
731 Zone Europe/Zagreb 1:03:52 - LMT 1884
732 1:00 - CET 1941 Apr 18 23:00
733 1:00 C-Eur CE%sT 1945 May 8 2:00s
734 1:00 1:00 CEST 1945 Sep 16 2:00s
735 1:00 - CET 1982 Nov 27
739 Zone Indian/Antananarivo 3:10:04 - LMT 1911 Jul
740 3:00 - EAT 1954 Feb 27 23:00s
741 3:00 1:00 EAST 1954 May 29 23:00s
745 Zone Indian/Comoro 2:53:04 - LMT 1911 Jul # Moroni, Gran Comoro
749 Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou
752 # US minor outlying islands
753 Zone Pacific/Johnston -10:00 - HST
755 # US minor outlying islands
757 # From Mark Brader (2005-01-23):
758 # [Fallacies and Fantasies of Air Transport History, by R.E.G. Davies,
759 # published 1994 by Paladwr Press, McLean, VA, USA; ISBN 0-9626483-5-3]
760 # reproduced a Pan American Airways timetable from 1936, for their weekly
761 # "Orient Express" flights between San Francisco and Manila, and connecting
762 # flights to Chicago and the US East Coast. As it uses some time zone
763 # designations that I've never seen before:....
764 # Fri. 6:30A Lv. HONOLOLU (Pearl Harbor), H.I. H.L.T. Ar. 5:30P Sun.
765 # " 3:00P Ar. MIDWAY ISLAND . . . . . . . . . M.L.T. Lv. 6:00A "
767 Zone Pacific/Midway -11:49:28 - LMT 1901
768 -11:00 - -11 1956 Jun 3
769 -11:00 1:00 -10 1956 Sep 2
773 Zone Pacific/Saipan -14:17:00 - LMT 1844 Dec 31
776 10:00 - +10 2000 Dec 23
777 10:00 - ChST # Chamorro Standard Time
projects / FreeBSD / FreeBSD.git / blob