Commit bd9eb20c authored by Edwin Groothuis's avatar Edwin Groothuis
Browse files

Vendor import of tzdata2013b:

Lots of historical data added.

Morocco: add DST rules for the coming years
Cuba: Doing DST in 2013.
Chili: Will do DST in 2013 as it seems.

Obtained from:		ftp://ftp.iana.org/tz/releases/
parent 347dae51
......@@ -6,7 +6,7 @@
# 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):
# From Paul Eggert (2013-02-21):
#
# A good source for time zone historical data outside the U.S. is
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
......@@ -25,6 +25,10 @@
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
# I found in the UCLA library.
#
# For data circa 1899, a common source is:
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
# <http://www.jstor.org/stable/1774359>.
#
# A reliable and entertaining source about time zones is
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
#
......@@ -116,8 +120,12 @@ Zone Africa/Porto-Novo 0:10:28 - LMT 1912
1:00 - WAT
# 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 NAME GMTOFF RULES FORMAT [UNTIL]
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
......@@ -189,6 +197,11 @@ Zone Africa/Djibouti 2:52:36 - LMT 1911 Jul
# Egypt
# Milne says Cairo used 2:05:08.9, the local mean time of the Abbasizeh
# observatory; round to nearest. Milne also says that the official time for
# Egypt was mean noon at the Great Pyramid, 2:04:30.5, but apparently this
# did not apply to Cairo, Alexandria, or Port Said.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Egypt 1940 only - Jul 15 0:00 1:00 S
Rule Egypt 1940 only - Oct 1 0:00 0 -
......@@ -329,7 +342,7 @@ Rule Egypt 2010 only - Sep 10 0:00 1:00 S
Rule Egypt 2010 only - Sep lastThu 23:00s 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Africa/Cairo 2:05:00 - LMT 1900 Oct
Zone Africa/Cairo 2:05:09 - LMT 1900 Oct
2:00 Egypt EE%sT
# Equatorial Guinea
......@@ -833,6 +846,41 @@ Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou
# 3:00 am Friday, July 20, 2012 and will again be advanced by 60 minutes
# August 20, 2012 from 2:00 am.
# From Paul Eggert (2013-03-06):
# Morocco's daylight-saving transitions due to Ramadan seem to be
# announced a bit in advance. On 2012-07-11 the Moroccan government
# announced that year's Ramadan daylight-saving transitions would be
# 2012-07-20 and 2012-08-20; see
# <http://www.mmsp.gov.ma/fr/actualites.aspx?id=288>.
#
# To estimate what the Moroccan government will do in future years,
# transition dates for 2013 through 2021 were determined by running
# the following program under GNU Emacs 24.3:
#
# (let ((islamic-year 1434))
# (while (< islamic-year 1444)
# (let ((a
# (calendar-gregorian-from-absolute
# (calendar-islamic-to-absolute (list 9 1 islamic-year))))
# (b
# (calendar-gregorian-from-absolute
# (calendar-islamic-to-absolute (list 10 1 islamic-year)))))
# (insert
# (format
# (concat "Rule\tMorocco\t%d\tonly\t-\t%s\t %2d\t 3:00\t0\t-\n"
# "Rule\tMorocco\t%d\tonly\t-\t%s\t %2d\t 2:00\t1:00\tS\n")
# (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
# (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
# (setq islamic-year (+ 1 islamic-year))))
#
# with the results hand-edited for 2020-2022, when the normal spring-forward
# date falls during the estimated Ramadan.
#
# From 2023 through 2038 Ramadan is not predicted to overlap with
# daylight saving time. Starting in 2039 there will be overlap again,
# but 32-bit time_t values roll around in 2038 so for now do not worry
# about dates after 2038.
# RULE NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Morocco 1939 only - Sep 12 0:00 1:00 S
......@@ -858,10 +906,28 @@ Rule Morocco 2010 only - May 2 0:00 1:00 S
Rule Morocco 2010 only - Aug 8 0:00 0 -
Rule Morocco 2011 only - Apr 3 0:00 1:00 S
Rule Morocco 2011 only - Jul 31 0 0 -
Rule Morocco 2012 max - Apr lastSun 2:00 1:00 S
Rule Morocco 2012 2019 - Apr lastSun 2:00 1:00 S
Rule Morocco 2012 max - Sep lastSun 3:00 0 -
Rule Morocco 2012 only - Jul 20 3:00 0 -
Rule Morocco 2012 only - Aug 20 2:00 1:00 S
Rule Morocco 2013 only - Jul 9 3:00 0 -
Rule Morocco 2013 only - Aug 8 2:00 1:00 S
Rule Morocco 2014 only - Jun 29 3:00 0 -
Rule Morocco 2014 only - Jul 29 2:00 1:00 S
Rule Morocco 2015 only - Jun 18 3:00 0 -
Rule Morocco 2015 only - Jul 18 2:00 1:00 S
Rule Morocco 2016 only - Jun 7 3:00 0 -
Rule Morocco 2016 only - Jul 7 2:00 1:00 S
Rule Morocco 2017 only - May 27 3:00 0 -
Rule Morocco 2017 only - Jun 26 2:00 1:00 S
Rule Morocco 2018 only - May 16 3:00 0 -
Rule Morocco 2018 only - Jun 15 2:00 1:00 S
Rule Morocco 2019 only - May 6 3:00 0 -
Rule Morocco 2019 only - Jun 5 2:00 1:00 S
Rule Morocco 2020 only - May 24 2:00 1:00 S
Rule Morocco 2021 only - May 13 2:00 1:00 S
Rule Morocco 2022 only - May 3 2:00 1:00 S
Rule Morocco 2023 max - Apr lastSun 2:00 1:00 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Africa/Casablanca -0:30:20 - LMT 1913 Oct 26
......
......@@ -50,10 +50,8 @@ Rule ChileAQ 2009 only - Mar Sun>=9 3:00u 0 -
Rule ChileAQ 2010 only - Apr Sun>=1 3:00u 0 -
Rule ChileAQ 2011 only - May Sun>=2 3:00u 0 -
Rule ChileAQ 2011 only - Aug Sun>=16 4:00u 1:00 S
Rule ChileAQ 2012 only - Apr Sun>=23 3:00u 0 -
Rule ChileAQ 2012 only - Sep Sun>=2 4:00u 1:00 S
Rule ChileAQ 2013 max - Mar Sun>=9 3:00u 0 -
Rule ChileAQ 2013 max - Oct Sun>=9 4:00u 1:00 S
Rule ChileAQ 2012 max - Apr Sun>=23 3:00u 0 -
Rule ChileAQ 2012 max - Sep Sun>=2 4:00u 1:00 S
# These rules are stolen from the `australasia' file.
Rule AusAQ 1917 only - Jan 1 0:01 1:00 -
......
......@@ -6,7 +6,7 @@
# 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):
# From Paul Eggert (2013-02-21):
#
# A good source for time zone historical data outside the U.S. is
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
......@@ -25,6 +25,10 @@
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
# I found in the UCLA library.
#
# For data circa 1899, a common source is:
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
# <http://www.jstor.org/stable/1774359>.
#
# A reliable and entertaining source about time zones is
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
#
......@@ -279,9 +283,12 @@ Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
8:00 - BNT
# Burma / Myanmar
# Milne says 6:24:40 was the meridian of the time ball observatory at Rangoon.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
6:24:36 - RMT 1920 # Rangoon Mean Time?
6:24:40 - RMT 1920 # Rangoon Mean Time?
6:30 - BURT 1942 May # Burma Time
9:00 - JST 1945 May 3
6:30 - MMT # Myanmar Time
......@@ -384,7 +391,8 @@ Zone Asia/Harbin 8:26:44 - LMT 1928 # or Haerbin
8:00 PRC C%sT
# Zhongyuan Time ("Central plain Time")
# most of China
Zone Asia/Shanghai 8:05:52 - LMT 1928
# Milne gives 8:05:56.7; round to nearest.
Zone Asia/Shanghai 8:05:57 - LMT 1928
8:00 Shang C%sT 1949
8:00 PRC C%sT
# Long-shu Time (probably due to Long and Shu being two names of that area)
......@@ -481,6 +489,10 @@ Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
8:00 PRC C%sT
# Hong Kong (Xianggang)
# Milne gives 7:36:41.7; round this.
# From Lee Yiu Chung (2009-10-24):
# I found there are some mistakes for the...DST rule for Hong
# Kong. [According] to the DST record from Hong Kong Observatory (actually,
......@@ -547,7 +559,6 @@ Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
# The Japanese surrender of Hong Kong was signed 1945-09-15.
# For lack of anything better, use start of those days as the transition times.
# Hong Kong (Xianggang)
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule HK 1941 only - Apr 1 3:30 1:00 S
Rule HK 1941 only - Sep 30 3:30 0 -
......@@ -569,7 +580,7 @@ Rule HK 1973 only - Dec 30 3:30 1:00 S
Rule HK 1979 only - May Sun>=8 3:30 1:00 S
Rule HK 1979 only - Oct Sun>=16 3:30 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30
8:00 HK HK%sT 1941 Dec 25
9:00 - JST 1945 Sep 15
8:00 HK HK%sT
......@@ -646,6 +657,9 @@ Zone Asia/Macau 7:34:20 - LMT 1912
###############################################################################
# Cyprus
#
# Milne says the Eastern Telegraph Company used 2:14:00. Stick with LMT.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Cyprus 1975 only - Apr 13 0:00 1:00 S
Rule Cyprus 1975 only - Oct 12 0:00 0 -
......@@ -1804,8 +1818,11 @@ Zone Asia/Kathmandu 5:41:16 - LMT 1920
5:45 - NPT # Nepal Time
# Oman
# Milne says 3:54:24 was the meridian of the Muscat Tidal Observatory.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Muscat 3:54:20 - LMT 1920
Zone Asia/Muscat 3:54:24 - LMT 1920
4:00 - GST
# Pakistan
......@@ -2400,6 +2417,13 @@ Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1
# no information
# Sri Lanka
# From Paul Eggert (2013-02-21):
# Milne says "Madras mean time use from May 1, 1898. Prior to this Colombo
# mean time, 5h. 4m. 21.9s. F., was used." But 5:04:21.9 differs considerably
# from Colombo's meridian 5:19:24, so for now ignore Milne and stick with
# Shanks and Pottenger.
# From Paul Eggert (1996-09-03):
# "Sri Lanka advances clock by an hour to avoid blackout"
# (www.virtual-pc.com/lankaweb/news/items/240596-2.html, 1996-05-24,
......@@ -2699,6 +2723,12 @@ Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2
# Vietnam
# From Paul Eggert (2013-02-21):
# Milne gives 7:16:56 for the meridian of Saigon in 1899, as being
# used in Lower Laos, Cambodia, and Annam. But this is quite a ways
# from Saigon's location. For now, ignore this and stick with Shanks
# and Pottenger.
# From Arthur David Olson (2008-03-18):
# The English-language name of Vietnam's most populous city is "Ho Chi Min City";
# we use Ho_Chi_Minh below to avoid a name of more than 14 characters.
......@@ -2712,6 +2742,10 @@ Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jun 9
7:00 - ICT
# 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 NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Aden 3:00:48 - LMT 1950
Zone Asia/Aden 2:59:54 - LMT 1950
3:00 - AST
......@@ -246,6 +246,9 @@ Zone Indian/Cocos 6:27:40 - LMT 1900
6:30 - CCT # Cocos Islands Time
# Fiji
# Milne gives 11:55:44 for Suva.
# From Alexander Krivenyshev (2009-11-10):
# According to Fiji Broadcasting Corporation, Fiji plans to re-introduce DST
# from November 29th 2009 to April 25th 2010.
......@@ -339,7 +342,7 @@ Rule Fiji 2010 max - Oct Sun>=18 2:00 1:00 S
Rule Fiji 2011 only - Mar Sun>=1 3:00 0 -
Rule Fiji 2012 max - Jan Sun>=18 3:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Fiji 11:53:40 - LMT 1915 Oct 26 # Suva
Zone Pacific/Fiji 11:55:44 - LMT 1915 Oct 26 # Suva
12:00 Fiji FJ%sT # Fiji Time
# French Polynesia
......@@ -782,7 +785,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# 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):
# From Paul Eggert (2013-02-21):
# 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).
......@@ -800,6 +803,10 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
# I found in the UCLA library.
#
# For data circa 1899, a common source is:
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
# <http://www.jstor.org/stable/1774359>.
#
# A reliable and entertaining source about time zones is
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
#
......
......@@ -30,6 +30,12 @@
# William Willett, The Waste of Daylight, 19th edition
# </a> (1914-03)
#
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
# <http://www.jstor.org/stable/1774359>. He writes:
# "It is requested that corrections and additions to these tables
# may be sent to Mr. John Milne, Royal Geographical Society,
# Savile Row, London." Nowadays please email them to tz@iana.org.
#
# Brazil's Departamento Servico da Hora (DSH),
# <a href="http://pcdsh01.on.br/HISTHV.htm">
# History of Summer Time
......@@ -666,6 +672,8 @@ Zone Europe/Andorra 0:06:04 - LMT 1901
# Austria
# Milne says Vienna time was 1:05:21.
# 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"
......@@ -683,7 +691,7 @@ 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
Zone Europe/Vienna 1:05:21 - 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
......@@ -1239,6 +1247,21 @@ Zone Europe/Berlin 0:53:28 - LMT 1893 Apr
1:00 Germany CE%sT 1980
1:00 EU CE%sT
# From Tobias Conradi (2011-09-12):
# Busingen <http://www.buesingen.de>, surrounded by the Swiss canton
# Schaffhausen, did not start observing DST in 1980 as the rest of DE
# (West Germany at that time) and DD (East Germany at that time) did.
# DD merged into DE, the area is currently covered by code DE in ISO 3166-1,
# which in turn is covered by the zone Europe/Berlin.
#
# Source for the time in Busingen 1980:
# http://www.srf.ch/player/video?id=c012c029-03b7-4c2b-9164-aa5902cd58d3
# From Arthur David Olson (2012-03-03):
# Busingen and Zurich have shared clocks since 1970.
Link Europe/Zurich Europe/Busingen
# Georgia
# Please see the "asia" file for Asia/Tbilisi.
# Herodotus (Histories, IV.45) says Georgia north of the Phasis (now Rioni)
......@@ -2043,6 +2066,70 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct
# Russia
# From Alexander Krivenyshev (2011-09-15):
# Based on last Russian Government Decree # 725 on August 31, 2011
# (Government document
# <a href="http://www.government.ru/gov/results/16355/print/">
# http://www.government.ru/gov/results/16355/print/
# </a>
# in Russian)
# there are few corrections have to be made for some Russian time zones...
# All updated Russian Time Zones were placed in table and translated to English
# by WorldTimeZone.com at the link below:
# <a href="http://www.worldtimezone.com/dst_news/dst_news_russia36.htm">
# http://www.worldtimezone.com/dst_news/dst_news_russia36.htm
# </a>
# From Sanjeev Gupta (2011-09-27):
# Scans of [Decree #23 of January 8, 1992] are available at:
# <a href="http://government.consultant.ru/page.aspx?1223966">
# http://government.consultant.ru/page.aspx?1223966
# They are in Cyrillic letters (presumably Russian).
# From Arthur David Olson (2012-05-09):
# Regarding the instant when clocks in time-zone-shifting parts of Russia
# changed in September 2011:
#
# One source is
# < a href="http://government.ru/gov/results/16355/>
# http://government.ru/gov/results/16355/
# </a>
# which, according to translate.google.com, begins "Decree of August 31,
# 2011 No 725" and contains no other dates or "effective date" information.
#
# Another source is
# <a href="http://www.rg.ru/2011/09/06/chas-zona-dok.html">
# http://www.rg.ru/2011/09/06/chas-zona-dok.html
# </a>
# which, according to translate.google.com, begins "Resolution of the
# Government of the Russian Federation on August 31, 2011 N 725" and also
# contains "Date first official publication: September 6, 2011 Posted on:
# in the 'RG' - Federal Issue number 5573 September 6, 2011" but which
# does not contain any "effective date" information.
#
# Another source is
# <a href="http://en.wikipedia.org/wiki/Oymyakonsky_District#cite_note-RuTime-7">
# http://en.wikipedia.org/wiki/Oymyakonsky_District#cite_note-RuTime-7
# </a>
# which, in note 8, contains "Resolution #725 of August 31, 2011...
# Effective as of after 7 days following the day of the official publication"
# but which does not contain any reference to September 6, 2011.
#
# The Wikipedia article refers to
# <a href="http://base.consultant.ru/cons/cgi/online.cgi?req=doc;base=LAW;n=118896">
# http://base.consultant.ru/cons/cgi/online.cgi?req=doc;base=LAW;n=118896
# </a>
# which seems to copy the text of the government.ru page.
#
# Tobias Conradi combines Wikipedia's
# "as of after 7 days following the day of the official publication"
# with www.rg.ru's "Date of first official publication: September 6, 2011" to get
# September 13, 2011 as the cutover date (unusually, a Tuesday, as Tobias Conradi notes).
#
# None of the sources indicates a time of day for changing clocks.
#
# Go with 2011-09-13 0:00s.
# 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,
......@@ -2270,14 +2357,32 @@ Zone Asia/Yakutsk 8:38:40 - LMT 1919 Dec 15
# [parts of] Respublika Sakha (Yakutiya).
# From Oscar van Vlijmen (2009-11-29):
# The Sakha districts are: Bulunskij, Verkhoyanskij, Tomponskij, Ust'-Majskij,
# Ust'-Yanskij.
# The Sakha districts are: Bulunskij, Verkhoyanskij, ... 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
# From Arthur David Olson (2012-05-09):
# Tomponskij and Ust'-Majskij switched from Vladivostok time to Yakutsk time
# in 2011.
#
# From Paul Eggert (2012-11-25):
# Shanks and Pottenger (2003) has Khandyga on Yakutsk time.
# Make a wild guess that it switched to Vladivostok time in 2004.
# This transition is no doubt wrong, but we have no better info.
#
Zone Asia/Khandyga 9:02:13 - 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 2004
10:00 Russia VLA%sT 2011 Mar 27 2:00s
11:00 - VLAT 2011 Sep 13 0:00s # Decree 725?
10:00 - YAKT
#
# Sakhalinskaya oblast'.
# The Zone name should be Yuzhno-Sakhalinsk, but that's too long.
......@@ -2296,14 +2401,26 @@ Zone Asia/Sakhalin 9:30:48 - LMT 1905 Aug 23
# From Oscar van Vlijmen (2009-11-29):
# The Sakha districts are: Abyjskij, Allaikhovskij, Verkhhhnekolymskij, Momskij,
# Nizhnekolymskij, Ojmyakonskij, Srednekolymskij.
# Nizhnekolymskij, ... 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 Arthur David Olson (2012-05-09):
# Ojmyakonskij and the Kuril Islands switched from
# Magadan time to Vladivostok time in 2011.
Zone Asia/Ust-Nera 9:32:54 - LMT 1919 Dec 15
8:00 - YAKT 1930 Jun 21 # Yakutsk Time
9:00 Russia YAKT 1981 Apr 1
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 2011 Sep 13 0:00s # Decree 725?
11:00 - VLAT
# From Oscar van Vlijmen (2001-08-25): [This region consists of]
# Kamchatskaya oblast', Koryakskij avtonomnyj okrug.
#
......
......@@ -1019,6 +1019,9 @@ Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00
# William Willett, The Waste of Daylight, 19th edition
# </a> (1914-03)
#
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
# <http://www.jstor.org/stable/1774359>.
#
# See the `europe' file for Greenland.
# Canada
......@@ -2554,6 +2557,8 @@ Zone America/Antigua -4:07:12 - LMT 1912 Mar 2
# Bahamas
#
# For 1899 Milne gives -5:09:29.5; round that.
#
# From Sue Williams (2006-12-07):
# The Bahamas announced about a month ago that they plan to change their DST
# rules to sync with the U.S. starting in 2007....
......@@ -2563,11 +2568,14 @@ Zone America/Antigua -4:07:12 - LMT 1912 Mar 2
Rule Bahamas 1964 1975 - Oct lastSun 2:00 0 S
Rule Bahamas 1964 1975 - Apr lastSun 2:00 1:00 D
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Nassau -5:09:24 - LMT 1912 Mar 2
Zone America/Nassau -5:09:30 - LMT 1912 Mar 2
-5:00 Bahamas E%sT 1976
-5:00 US E%sT
# Barbados
# For 1899 Milne gives -3:58:29.2; round that.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Barb 1977 only - Jun 12 2:00 1:00 D
Rule Barb 1977 1978 - Oct Sun>=1 2:00 0 S
......@@ -2575,8 +2583,8 @@ Rule Barb 1978 1980 - Apr Sun>=15 2:00 1:00 D
Rule Barb 1979 only - Sep 30 2:00 0 S
Rule Barb 1980 only - Sep 25 2:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Barbados -3:58:28 - LMT 1924 # Bridgetown
-3:58:28 - BMT 1932 # Bridgetown Mean Time
Zone America/Barbados -3:58:29 - LMT 1924 # Bridgetown
-3:58:29 - BMT 1932 # Bridgetown Mean Time
-4:00 Barb A%sT
# Belize
......@@ -2594,6 +2602,9 @@ Zone America/Belize -5:52:48 - LMT 1912 Apr
# Bermuda
# For 1899 Milne gives -4:19:18.3 as the meridian of the clock tower,
# Bermuda dockyard, Ireland I; round that.
# From Dan Jones, reporting in The Royal Gazette (2006-06-26):
# Next year, however, clocks in the US will go forward on the second Sunday
......@@ -2603,7 +2614,7 @@ Zone America/Belize -5:52:48 - LMT 1912 Apr
# http://www.theroyalgazette.com/apps/pbcs.dll/article?AID=/20060529/NEWS/105290135
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Atlantic/Bermuda -4:19:04 - LMT 1930 Jan 1 2:00 # Hamilton
Zone Atlantic/Bermuda -4:19:18 - LMT 1930 Jan 1 2:00 # Hamilton
-4:00 - AST 1974 Apr 28 2:00
-4:00 Bahamas A%sT 1976
-4:00 US A%sT
......@@ -2615,6 +2626,9 @@ Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown
-5:00 - EST
# Costa Rica
# Milne gives -5:36:13.3 as San Jose mean time; round to nearest.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule CR 1979 1980 - Feb lastSun 0:00 1:00 D
Rule CR 1979 1980 - Jun Sun>=1 0:00 0 S
......@@ -2625,14 +2639,19 @@ Rule CR 1991 only - Jul 1 0:00 0 S
Rule CR 1992 only - Mar 15 0:00 0 S
# There are too many San Joses elsewhere, so we'll use `Costa Rica'.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Costa_Rica -5:36:20 - LMT 1890 # San Jose
-5:36:20 - SJMT 1921 Jan 15 # San Jose Mean Time
Zone America/Costa_Rica -5:36:13 - LMT 1890 # San Jose
-5:36:13 - SJMT 1921 Jan 15 # San Jose Mean Time
-6:00 CR C%sT
# Coco
# no information; probably like America/Costa_Rica
# Cuba
# From Paul Eggert (2013-02-21):
# Milne gives -5:28:50.45 for the observatory at Havana, -5:29:23.57
# for the port, and -5:30 for meteorological observations.
# For now, stick with Shanks & Pottenger.
# From Arthur David Olson (1999-03-29):
# The 1999-03-28 exhibition baseball game held in Havana, Cuba, between
# the Cuban National Team and the Baltimore Orioles was carried live on
......@@ -2981,24 +3000,21 @@ Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5
# apparently using the same start and end date as USA/Canada.
# So this means they have already changed their time.
#
# (Sources in French):
# <a href="http://www.alterpresse.org/spip.php?article12510">
# http://www.alterpresse.org/spip.php?article12510
# </a>
# <a href="http://radiovision2000haiti.net/home/?p=13253">
# http://radiovision2000haiti.net/home/?p=13253
# </a>
#
# Our coverage:
# <a href="http://www.timeanddate.com/news/time/haiti-dst-2012.html">
# http://www.timeanddate.com/news/time/haiti-dst-2012.html
# </a>
# From Arthur David Olson (2012-03-11):
# The alterpresse.org source seems to show a US-style leap from 2:00 a.m. to
# 3:00 a.m. rather than the traditional Haitian jump at midnight.
# Assume a US-style fall back as well XXX.
# Do not yet assume that the change carries forward past 2012 XXX.
# Assume a US-style fall back as well.
# From Steffen Thorsen (2013-03-10):
# It appears that Haiti is observing DST this year as well, same rules
# as US/Canada. They did it last year as well, and it looks like they
# are going to observe DST every year now...
#
# http://radiovision2000haiti.net/public/haiti-avis-changement-dheure-dimanche/
# http://www.canalplushaiti.net/?p=6714
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Haiti 1983 only - May 8 0:00 1:00 D
......@@ -3010,8 +3026,8 @@ Rule Haiti 1988 1997 - Apr Sun>=1 1:00s 1:00 D
Rule Haiti 1988 1997 - Oct lastSun 1:00s 0 S
Rule Haiti 2005 2006 - Apr Sun>=1 0:00 1:00 D
Rule Haiti 2005 2006 - Oct lastSun 0:00 0 S
Rule Haiti 2012 only - Mar Sun>=8 2:00 1:00 D
Rule Haiti 2012 only - Nov Sun>=1 2:00 0 S
Rule Haiti 2012 max - Mar Sun>=8 2:00 1:00 D
Rule Haiti 2012 max - Nov Sun>=1 2:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Port-au-Prince -4:49:20 - LMT 1890
-4:49 - PPMT 1917 Jan 24 12:00 # P-a-P MT
......
......@@ -11,6 +11,10 @@
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
# San Diego: ACS Publications, Inc. (2003).
#
# For data circa 1899, a common source is:
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
# <http://www.jstor.org/stable/1774359>.
#
# 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),
......@@ -381,21 +385,11 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S
# <a/>
# is the official page for the Province Government).
#
# There's also a note in only one of the major national papers (La Nación) at
# <a href="http://www.lanacion.com.ar/nota.asp?nota_id=1107912">
# There's also a note in only one of the major national papers ...
# http://www.lanacion.com.ar/nota.asp?nota_id=1107912
# </a>
#
# The press release says:
# (...) anunció que el próximo domingo a las 00:00 los puntanos deberán
# atrasar una hora sus relojes.
#
# A partir de entonces, San Luis establecerá el huso horario propio de
# la Provincia. De esta manera, durante el periodo del calendario anual
# 2009, el cambio horario quedará comprendido entre las 00:00 del tercer
# domingo de marzo y las 24:00 del segundo sábado de octubre.
# Quick&dirty translation
# (...) announced that next Sunday, at 00:00, Puntanos (the San Luis
# The press release says [quick and dirty translation]:
# ... announced that next Sunday, at 00:00, Puntanos (the San Luis
# inhabitants) will have to turn back one hour their clocks
#
# Since then, San Luis will establish its own Province timezone. Thus,
......@@ -457,6 +451,9 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S
# rules...San Luis is still using "Western ARgentina Time" and it got
# stuck on Summer daylight savings time even though the summer is over.
# From Paul Eggert (2013-02-21):
# Milne says Cordoba time was -4:16:48.2. Round to the nearest second.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]