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Update time zone data files to tzdata release 2015d.

Browse Source 
DST law changes in Egypt, Mongolia, Palestine.
Historical corrections for Canada and Chile.
Revised zone abbreviation for America/Adak (HST/HDT not HAST/HADT).
pull/14/head
Tom Lane 11 years ago
parent b0b7be6133
commit 9d366c1f3d
14 changed files with 389 additions and 270 deletions
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  1. 67
      src/timezone/data/africa
  2. 51
      src/timezone/data/antarctica
  3. 35
      src/timezone/data/asia
  4. 27
      src/timezone/data/australasia
  5. 1
      src/timezone/data/backward
  6. 76
      src/timezone/data/backzone
  7. 4
      src/timezone/data/europe
  8. 198
      src/timezone/data/northamerica
  9. 170
      src/timezone/data/southamerica
  10. 8
      src/timezone/known_abbrevs.txt
  11. 6
      src/timezone/tznames/America.txt
  12. 9
      src/timezone/tznames/Asia.txt
  13. 5
      src/timezone/tznames/Default
  14. 2
      src/timezone/tznames/Pacific.txt

67
src/timezone/data/africa
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@ -319,35 +319,29 @@ Rule Egypt 2007 only - Sep Thu>=1 24:00 0 -
# above) says DST had no affect on electricity consumption. There is
# no information about when DST will end this fall. See:
# http://abcnews.go.com/International/wireStory/el-sissi-pushes-egyptians-line-23614833
# From Steffen Thorsen (2015-04-08):
# Egypt will start DST on midnight after Thursday, April 30, 2015.
# This is based on a law (no 35) from May 15, 2014 saying it starts the last
# Thursday of April.... Clocks will still be turned back for Ramadan, but
# dates not yet announced....
# http://almogaz.com/news/weird-news/2015/04/05/1947105 ...
# http://www.timeanddate.com/news/time/egypt-starts-dst-2015.html
# From Ahmed Nazmy (2015-04-20):
# Egypt's ministers cabinet just announced ... that it will cancel DST at
# least for 2015.
#
# For now, guess that later spring and fall transitions will use
# 2010's rules, and guess that Egypt will switch to standard time at
# 24:00 the last Thursday before Ramadan, and back to DST at 00:00 the
# first Friday after Ramadan. To implement this,
# transition dates for 2015 through 2037 were determined by running
# the following program under GNU Emacs 24.3, with the results integrated
# by hand into the table below. Ramadan again intrudes on the guessed
# DST starting in 2038, but that's beyond our somewhat-arbitrary cutoff.
# (let ((islamic-year 1436))
# (while (< islamic-year 1460)
# (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
# (b (calendar-islamic-to-absolute (list 10 1 islamic-year)))
# (friday 5))
# (while (/= friday (mod a 7))
# (setq a (1- a)))
# (while (/= friday (mod b 7))
# (setq b (1+ b)))
# (setq a (1- a))
# (setq b (1- b))
# (setq a (calendar-gregorian-from-absolute a))
# (setq b (calendar-gregorian-from-absolute b))
# (insert
# (format
# (concat "Rule\tEgypt\t%d\tonly\t-\t%s\t%2d\t24:00\t0\t-\n"
# "Rule\tEgypt\t%d\tonly\t-\t%s\t%2d\t24:00\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))))
# From Tim Parenti (2015-04-20):
# http://english.ahram.org.eg/WriterArticles/NewsContentP/1/128195/Egypt/No-daylight-saving-this-summer-Egypts-prime-minist.aspx
# "Egypt's cabinet agreed on Monday not to switch clocks for daylight saving
# time this summer, and carry out studies on the possibility of canceling the
# practice altogether in future years."
#
# From Paul Eggert (2015-04-20):
# For now, assume DST will be canceled. Any resumption would likely
# use different rules anyway.
Rule Egypt 2008 only - Aug lastThu 24:00 0 -
Rule Egypt 2009 only - Aug 20 24:00 0 -
Rule Egypt 2010 only - Aug 10 24:00 0 -
@ -356,22 +350,7 @@ Rule Egypt 2010 only - Sep lastThu 24:00 0 -
Rule Egypt 2014 only - May 15 24:00 1:00 S
Rule Egypt 2014 only - Jun 26 24:00 0 -
Rule Egypt 2014 only - Jul 31 24:00 1:00 S
Rule Egypt 2014 max - Sep lastThu 24:00 0 -
Rule Egypt 2015 2019 - Apr lastFri 0:00s 1:00 S
Rule Egypt 2015 only - Jun 11 24:00 0 -
Rule Egypt 2015 only - Jul 23 24:00 1:00 S
Rule Egypt 2016 only - Jun 2 24:00 0 -
Rule Egypt 2016 only - Jul 7 24:00 1:00 S
Rule Egypt 2017 only - May 25 24:00 0 -
Rule Egypt 2017 only - Jun 29 24:00 1:00 S
Rule Egypt 2018 only - May 10 24:00 0 -
Rule Egypt 2018 only - Jun 14 24:00 1:00 S
Rule Egypt 2019 only - May 2 24:00 0 -
Rule Egypt 2019 only - Jun 6 24:00 1:00 S
Rule Egypt 2020 only - May 28 24:00 1:00 S
Rule Egypt 2021 only - May 13 24:00 1:00 S
Rule Egypt 2022 only - May 5 24:00 1:00 S
Rule Egypt 2023 max - Apr lastFri 0:00s 1:00 S
Rule Egypt 2014 only - Sep lastThu 24:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Africa/Cairo 2:05:09 - LMT 1900 Oct

51
src/timezone/data/antarctica
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@ -15,41 +15,6 @@
# I made up all time zone abbreviations mentioned here; corrections welcome!
# FORMAT is 'zzz' and GMTOFF is 0 for locations while uninhabited.
# These rules are stolen from the 'southamerica' file.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule ArgAQ 1964 1966 - Mar 1 0:00 0 -
Rule ArgAQ 1964 1966 - Oct 15 0:00 1:00 S
Rule ArgAQ 1967 only - Apr 2 0:00 0 -
Rule ArgAQ 1967 1968 - Oct Sun>=1 0:00 1:00 S
Rule ArgAQ 1968 1969 - Apr Sun>=1 0:00 0 -
Rule ArgAQ 1974 only - Jan 23 0:00 1:00 S
Rule ArgAQ 1974 only - May 1 0:00 0 -
Rule ChileAQ 1972 1986 - Mar Sun>=9 3:00u 0 -
Rule ChileAQ 1974 1987 - Oct Sun>=9 4:00u 1:00 S
Rule ChileAQ 1987 only - Apr 12 3:00u 0 -
Rule ChileAQ 1988 1989 - Mar Sun>=9 3:00u 0 -
Rule ChileAQ 1988 only - Oct Sun>=1 4:00u 1:00 S
Rule ChileAQ 1989 only - Oct Sun>=9 4:00u 1:00 S
Rule ChileAQ 1990 only - Mar 18 3:00u 0 -
Rule ChileAQ 1990 only - Sep 16 4:00u 1:00 S
Rule ChileAQ 1991 1996 - Mar Sun>=9 3:00u 0 -
Rule ChileAQ 1991 1997 - Oct Sun>=9 4:00u 1:00 S
Rule ChileAQ 1997 only - Mar 30 3:00u 0 -
Rule ChileAQ 1998 only - Mar Sun>=9 3:00u 0 -
Rule ChileAQ 1998 only - Sep 27 4:00u 1:00 S
Rule ChileAQ 1999 only - Apr 4 3:00u 0 -
Rule ChileAQ 1999 2010 - Oct Sun>=9 4:00u 1:00 S
Rule ChileAQ 2000 2007 - Mar Sun>=9 3:00u 0 -
# N.B.: the end of March 29 in Chile is March 30 in Universal time,
# which is used below in specifying the transition.
Rule ChileAQ 2008 only - Mar 30 3:00u 0 -
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 2015 - Apr Sun>=23 3:00u 0 -
Rule ChileAQ 2012 2014 - Sep Sun>=2 4:00u 1:00 S
# Argentina - year-round bases
# Belgrano II, Confin Coast, -770227-0343737, since 1972-02-05
# Carlini, Potter Cove, King George Island, -6414-0602320, since 1982-01
@ -344,21 +309,7 @@ Zone Antarctica/Rothera 0 - zzz 1976 Dec 1
# USA - year-round bases
#
# Palmer, Anvers Island, since 1965 (moved 2 miles in 1968)
#
# From Ethan Dicks (1996-10-06):
# It keeps the same time as Punta Arenas, Chile, because, just like us
# and the South Pole, that's the other end of their supply line....
# I verified with someone who was there that since 1980,
# Palmer has followed Chile. Prior to that, before the Falklands War,
# Palmer used to be supplied from Argentina.
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Antarctica/Palmer 0 - zzz 1965
-4:00 ArgAQ AR%sT 1969 Oct 5
-3:00 ArgAQ AR%sT 1982 May
-4:00 ChileAQ CL%sT 2015 Apr 26 3:00u
-3:00 - CLT
#
# See 'southamerica' for Antarctica/Palmer, since it uses South American DST.
#
# McMurdo Station, Ross Island, since 1955-12
# Amundsen-Scott South Pole Station, continuously occupied since 1956-11-20

35
src/timezone/data/asia
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@ -1904,6 +1904,13 @@ Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
# was at the start of 2008-03-31 (the day of Steffen Thorsen's report);
# this is almost surely wrong.
# From Ganbold Tsagaankhuu (2015-03-10):
# It seems like yesterday Mongolian Government meeting has concluded to use
# daylight saving time in Mongolia.... Starting at 2:00AM of last Saturday of
# March 2015, daylight saving time starts. And 00:00AM of last Saturday of
# September daylight saving time ends. Source:
# http://zasag.mn/news/view/8969
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S
Rule Mongol 1983 only - Oct 1 0:00 0 -
@ -1924,6 +1931,8 @@ Rule Mongol 1984 1998 - Sep lastSun 0:00 0 -
Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S
Rule Mongol 2001 2006 - Sep lastSat 2:00 0 -
Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S
Rule Mongol 2015 max - Mar lastSat 2:00 1:00 S
Rule Mongol 2015 max - Sep lastSat 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta
@ -2342,13 +2351,19 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
# official source...:
# http://www.palestinecabinet.gov.ps/ar/Views/ViewDetails.aspx?pid=1252
# From Paul Eggert (2013-09-24):
# For future dates, guess the last Thursday in March at 24:00 through
# the first Friday on or after September 21 at 00:00. This is consistent with
# the predictions in today's editions of the following URLs,
# which are for Gaza and Hebron respectively:
# http://www.timeanddate.com/worldclock/timezone.html?n=702
# http://www.timeanddate.com/worldclock/timezone.html?n=2364
# From Steffen Thorsen (2015-03-03):
# Sources such as http://www.alquds.com/news/article/view/id/548257
# and http://www.raya.ps/ar/news/890705.html say Palestine areas will
# start DST on 2015-03-28 00:00 which is one day later than expected.
#
# From Paul Eggert (2015-03-03):
# http://www.timeanddate.com/time/change/west-bank/ramallah?year=2014
# says that the fall 2014 transition was Oct 23 at 24:00.
# For future dates, guess the last Friday in March at 24:00 through
# the first Friday on or after October 21 at 00:00. This is consistent with
# the predictions in today's editions of the following URLs:
# http://www.timeanddate.com/time/change/gaza-strip/gaza
# http://www.timeanddate.com/time/change/west-bank/hebron
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
@ -2374,9 +2389,11 @@ Rule Palestine 2011 only - Apr 1 0:01 1:00 S
Rule Palestine 2011 only - Aug 1 0:00 0 -
Rule Palestine 2011 only - Aug 30 0:00 1:00 S
Rule Palestine 2011 only - Sep 30 0:00 0 -
Rule Palestine 2012 max - Mar lastThu 24:00 1:00 S
Rule Palestine 2012 2014 - Mar lastThu 24:00 1:00 S
Rule Palestine 2012 only - Sep 21 1:00 0 -
Rule Palestine 2013 max - Sep Fri>=21 0:00 0 -
Rule Palestine 2013 only - Sep Fri>=21 0:00 0 -
Rule Palestine 2014 max - Oct Fri>=21 0:00 0 -
Rule Palestine 2015 max - Mar lastFri 24:00 1:00 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Gaza 2:17:52 - LMT 1900 Oct

27
src/timezone/data/australasia
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@ -373,6 +373,7 @@ Zone Pacific/Guam -14:21:00 - LMT 1844 Dec 31
9:39:00 - LMT 1901 # Agana
10:00 - GST 2000 Dec 23 # Guam
10:00 - ChST # Chamorro Standard Time
Link Pacific/Guam Pacific/Saipan # N Mariana Is
# Kiribati
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
@ -388,12 +389,7 @@ Zone Pacific/Kiritimati -10:29:20 - LMT 1901
14:00 - LINT
# N Mariana Is
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Saipan -14:17:00 - LMT 1844 Dec 31
9:43:00 - LMT 1901
9:00 - MPT 1969 Oct # N Mariana Is Time
10:00 - MPT 2000 Dec 23
10:00 - ChST # Chamorro Standard Time
# See Pacific/Guam.
# Marshall Is
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
@ -563,6 +559,7 @@ Zone Pacific/Pago_Pago 12:37:12 - LMT 1879 Jul 5
-11:00 - NST 1967 Apr # N=Nome
-11:00 - BST 1983 Nov 30 # B=Bering
-11:00 - SST # S=Samoa
Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands
# Samoa (formerly and also known as Western Samoa)
@ -744,23 +741,7 @@ Zone Pacific/Funafuti 11:56:52 - LMT 1901
# uninhabited
# Midway
#
# 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
-11:00 - NST 1956 Jun 3
-11:00 1:00 NDT 1956 Sep 2
-11:00 - NST 1967 Apr # N=Nome
-11:00 - BST 1983 Nov 30 # B=Bering
-11:00 - SST # S=Samoa
# See Pacific/Pago_Pago.
# Palmyra
# uninhabited since World War II; was probably like Pacific/Kiritimati

1
src/timezone/data/backward
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@ -20,6 +20,7 @@ Link America/Argentina/Jujuy America/Jujuy
Link America/Indiana/Knox America/Knox_IN
Link America/Kentucky/Louisville America/Louisville
Link America/Argentina/Mendoza America/Mendoza
Link America/Toronto America/Montreal
Link America/Rio_Branco America/Porto_Acre
Link America/Argentina/Cordoba America/Rosario
Link America/Denver America/Shiprock

76
src/timezone/data/backzone
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@ -255,6 +255,11 @@ Zone Africa/Timbuktu -0:12:04 - LMT 1912
Zone America/Anguilla -4:12:16 - LMT 1912 Mar 2
-4:00 - AST
# Antigua and Barbuda
Zone America/Antigua -4:07:12 - LMT 1912 Mar 2
-5:00 - EST 1951
-4:00 - AST
# Chubut, Argentina
# The name "Comodoro Rivadavia" exceeds the 14-byte POSIX limit.
Zone America/Argentina/ComodRivadavia -4:30:00 - LMT 1894 Oct 31
@ -274,6 +279,11 @@ Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad
-4:30 - ANT 1965 # Netherlands Antilles Time
-4:00 - AST
# Cayman Is
Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
-5:00 - EST
# Canada
Zone America/Coral_Harbour -5:32:40 - LMT 1884
-5:00 NT_YK E%sT 1946
@ -301,6 +311,46 @@ Zone America/Grenada -4:07:00 - LMT 1911 Jul # St George's
Zone America/Guadeloupe -4:06:08 - LMT 1911 Jun 8 # Pointe-à-Pitre
-4:00 - AST
# 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
# Montserrat
# From Paul Eggert (2006-03-22):
# In 1995 volcanic eruptions forced evacuation of Plymouth, the capital.
@ -599,3 +649,29 @@ Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou
# US minor outlying islands
Zone Pacific/Johnston -10:00 - HST
# 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
-11:00 - NST 1956 Jun 3
-11:00 1:00 NDT 1956 Sep 2
-11:00 - NST 1967 Apr # N=Nome
-11:00 - BST 1983 Nov 30 # B=Bering
-11:00 - SST # S=Samoa
# N Mariana Is
Zone Pacific/Saipan -14:17:00 - LMT 1844 Dec 31
9:43:00 - LMT 1901
9:00 - MPT 1969 Oct # N Mariana Is Time
10:00 - MPT 2000 Dec 23
10:00 - ChST # Chamorro Standard Time

4
src/timezone/data/europe
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@ -76,7 +76,7 @@
# 1:00:14 SET Swedish (1879-1899)*
# 2:00 EET EEST Eastern Europe
# 3:00 FET Further-eastern Europe (2011-2014)*
# 3:00 MSK MSD MSM* Moscow
# 3:00 MSK MSD MSM* Minsk, Moscow
# From Peter Ilieve (1994-12-04),
# The original six [EU members]: Belgium, France, (West) Germany, Italy,
@ -2400,7 +2400,7 @@ Zone Europe/Volgograd 2:57:40 - LMT 1920 Jan 3
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 MSK 2011 Mar 27 2:00s
3:00 Russia MSK/MSD 2011 Mar 27 2:00s
4:00 - MSK 2014 Oct 26 2:00s
3:00 - MSK

198
src/timezone/data/northamerica
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@ -227,9 +227,14 @@ Zone PST8PDT -8:00 US P%sT
# The law doesn't give abbreviations.
#
# From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
# Public law 106-564 (2000-12-23) introduced the abbreviation
# "Chamorro Standard Time" for time in Guam and the Northern Marianas.
# See the file "australasia".
# Public law 106-564 (2000-12-23) introduced ... "Chamorro Standard Time"
# for time in Guam and the Northern Marianas. See the file "australasia".
#
# From Paul Eggert (2015-04-17):
# HST and HDT are standardized abbreviations for Hawaii-Aleutian
# standard and daylight times. See section 9.47 (p 234) of the
# U.S. Government Printing Office Style Manual (2008)
# http://www.gpo.gov/fdsys/pkg/GPO-STYLEMANUAL-2008/pdf/GPO-STYLEMANUAL-2008.pdf
# From Arthur David Olson, 2005-08-09
# The following was signed into law on 2005-08-08.
@ -536,7 +541,7 @@ Zone America/Adak 12:13:21 - LMT 1867 Oct 18
-11:00 - BST 1969
-11:00 US B%sT 1983 Oct 30 2:00
-10:00 US AH%sT 1983 Nov 30
-10:00 US HA%sT
-10:00 US H%sT
# The following switches don't quite make our 1970 cutoff.
#
# Shanks writes that part of southwest Alaska (e.g. Aniak)
@ -1331,14 +1336,9 @@ Zone America/Moncton -4:19:08 - LMT 1883 Dec 9
# Quebec
# From Paul Eggert (2013-08-30):
# Since 1970 most of Quebec has been like Toronto.
# However, because earlier versions of the tz database mistakenly relied on data
# from Shanks & Pottenger saying that Quebec differed from Ontario after 1970,
# a separate entry was created for most of Quebec. We're loath to lose
# its pre-1970 info, even though the tz database is normally limited to
# zones that differ after 1970, so keep this otherwise out-of-scope entry.
# From Paul Eggert (2015-03-24):
# See America/Toronto for most of Quebec, including Montreal.
#
# Matthews and Vincent (1998) also write that Quebec east of the -63
# meridian is supposed to observe AST, but residents as far east as
# Natashquan use EST/EDT, and residents east of Natashquan use AST.
@ -1352,39 +1352,10 @@ Zone America/Moncton -4:19:08 - LMT 1883 Dec 9
# For lack of better info, guess this practice began around 1970, contra to
# Shanks & Pottenger who have this region observing AST/ADT.
# 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 NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Blanc-Sablon -3:48:28 - LMT 1884
-4:00 Canada A%sT 1970
-4:00 - AST
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
# Ontario
@ -1875,17 +1846,115 @@ Zone America/Creston -7:46:04 - LMT 1884
# Dawson switched to PST in 1973. Inuvik switched to MST in 1979.
# Mathew Englander (1996-10-07) gives the following refs:
# * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
# c. 7 defines Yukon standard time as UTC-9. This is still valid;
# c. 7 defines Yukon standard time as UTC-9....
# see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
# [http://canlii.ca/t/7vhg]
# * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00.
# * O.I.C. 1980/02 established DST.
# * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00.
# Shanks & Pottenger say Yukon's 1973-10-28 switch was at 2:00; go
# with Englander.
# From Chris Walton (2006-06-26):
# Here is a link to the old daylight saving portion of the interpretation
# act which was last updated in 1987:
# http://www.gov.yk.ca/legislation/regs/oic1987_056.pdf
# From Brian Inglis (2015-04-14):
#
# I tried to trace the history of Yukon time and found the following
# regulations, giving the reference title and URL if found, regulation name,
# and relevant quote if available. Each regulation specifically revokes its
# predecessor. The final reference is to the current Interpretation Act
# authorizing and resulting from these regulatory changes.
#
# Only recent regulations were retrievable via Yukon government site search or
# index, and only some via Canadian legal sources. Other sources used include
# articles titled "Standard Time and Time Zones in Canada" from JRASC via ADS
# Abstracts, cited by ADO for 1932 ..., and updated versions from 1958 and
# 1970 quoted below; each article includes current extracts from provincial
# and territorial ST and DST regulations at the end, summaries and details of
# standard times and daylight saving time at many locations across Canada,
# with time zone maps, tables and calculations for Canadian Sunrise, Sunset,
# and LMST; they also cover many countries and global locations, with a chart
# and table showing current Universal Time offsets, and may be useful as
# another source of information for 1970 and earlier.
#
# * Standard Time and Time Zones in Canada; Smith, C.C.; JRASC, Vol. 26,
# pp.49-77; February 1932; SAO/NASA Astrophysics Data System (ADS)
# http://adsabs.harvard.edu/abs/1932JRASC..26...49S from p.75:
# Yukon Interpretation Ordinance
# Yukon standard time is the local mean time at the one hundred and
# thirty-fifth meridian.
#
# * Standard Time and Time Zones in Canada; Smith, C.C.; Thomson, Malcolm M.;
# JRASC, Vol. 52, pp.193-223; October 1958; SAO/NASA Astrophysics Data System
# (ADS) http://adsabs.harvard.edu/abs/1958JRASC..52..193S from pp.220-1:
# Yukon Interpretation Ordinance, 1955, Chap. 16.
#
# (1) Subject to this section, standard time shall be reckoned as nine
# hours behind Greenwich Time and called Yukon Standard Time.
#
# (2) Notwithstanding subsection (1), the Commissioner may make regulations
# varying the manner of reckoning standard time.
#
# * Yukon Territory Commissioner's Order 1966-20 Interpretation Ordinance
# http://? - no online source found
#
# * Standard Time and Time Zones in Canada; Thomson, Malcolm M.; JRASC,
# Vol. 64, pp.129-162; June 1970; SAO/NASA Astrophysics Data System (ADS)
# http://adsabs.harvard.edu/abs/1970JRASC..64..129T from p.156: Yukon
# Territory Commissioner's Order 1967-59 Interpretation Ordinance ...
#
# 1. Commissioner's Order 1966-20 dated at Whitehorse in the Yukon
# Territory on 27th January, 1966, is hereby revoked.
#
# 2. Yukon (East) Standard Time as defined by section 36 of the
# Interpretation Ordinance from and after mid-night on the 28th day of May,
# 1967 shall be reckoned in the same manner as Pacific Standard Time, that
# is to say, eight hours behind Greenwich Time in the area of the Yukon
# Territory lying east of the 138th degree longitude west.
#
# 3. In the remainder of the Territory, lying west of the 138th degree
# longitude west, Yukon (West) Standard Time shall be reckoned as nine
# hours behind Greenwich Time.
#
# * Yukon Standard Time defined as Pacific Standard Time, YCO 1973/214
# http://www.canlii.org/en/yk/laws/regu/yco-1973-214/latest/yco-1973-214.html
# C.O. 1973/214 INTERPRETATION ACT ...
#
# 1. Effective October 28, 1973 Commissioner's Order 1967/59 is hereby
# revoked.
#
# 2. Yukon Standard Time as defined by section 36 of the Interpretation
# Act from and after midnight on the twenty-eighth day of October, 1973
# shall be reckoned in the same manner as Pacific Standard Time, that is
# to say eight hours behind Greenwich Time.
#
# * O.I.C. 1980/02 INTERPRETATION ACT
# http://? - no online source found
#
# * Yukon Daylight Saving Time, YOIC 1987/56
# http://www.canlii.org/en/yk/laws/regu/yoic-1987-56/latest/yoic-1987-56.html
# O.I.C. 1987/056 INTERPRETATION ACT ...
#
# In every year between
# (a) two o'clock in the morning in the first Sunday in April, and
# (b) two o'clock in the morning in the last Sunday in October,
# Standard Time shall be reckoned as seven hours behind Greenwich Time and
# called Yukon Daylight Saving Time.
# ...
# Dated ... 9th day of March, A.D., 1987.
#
# * Yukon Daylight Saving Time 2006, YOIC 2006/127
# http://www.canlii.org/en/yk/laws/regu/yoic-2006-127/latest/yoic-2006-127.html
# O.I.C. 2006/127 INTERPRETATION ACT ...
#
# 1. In Yukon each year the time for general purposes shall be 7 hours
# behind Greenwich mean time during the period commencing at two o'clock
# in the forenoon on the second Sunday of March and ending at two o'clock
# in the forenoon on the first Sunday of November and shall be called
# Yukon Daylight Saving Time.
#
# 2. Order-in-Council 1987/56 is revoked.
#
# 3. This order comes into force January 1, 2007.
#
# * Interpretation Act, RSY 2002, c 125
# http://www.canlii.org/en/yk/laws/stat/rsy-2002-c-125/latest/rsy-2002-c-125.html
# From Rives McDow (1999-09-04):
# Nunavut ... moved ... to incorporate the whole territory into one time zone.
@ -2111,7 +2180,7 @@ Zone America/Inuvik 0 - zzz 1953 # Inuvik founded
-7:00 NT_YK M%sT 1980
-7:00 Canada M%sT
Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20
-9:00 NT_YK Y%sT 1966 Jul 1 2:00
-9:00 NT_YK Y%sT 1967 May 28 0:00
-8:00 NT_YK P%sT 1980
-8:00 Canada P%sT
Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
@ -2312,8 +2381,24 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
# "...the new time zone will come into effect at two o'clock on the first Sunday
# of February, when we will have to advance the clock one hour from its current
# time..."
#
# Also, the new zone will not use DST.
#
# From Carlos Raúl Perasso (2015-02-02):
# The decree that modifies the Mexican Hour System Law has finally
# been published at the Diario Oficial de la Federación
# http://www.dof.gob.mx/nota_detalle.php?codigo=5380123&fecha=31/01/2015
# It establishes 5 zones for Mexico:
# 1- Zona Centro (Central Zone): Corresponds to longitude 90 W,
# includes most of Mexico, excluding what's mentioned below.
# 2- Zona Pacífico (Pacific Zone): Longitude 105 W, includes the
# states of Baja California Sur; Chihuahua; Nayarit (excluding Bahía
# de Banderas which lies in Central Zone); Sinaloa and Sonora.
# 3- Zona Noroeste (Northwest Zone): Longitude 120 W, includes the
# state of Baja California.
# 4- Zona Sureste (Southeast Zone): Longitude 75 W, includes the state
# of Quintana Roo.
# 5- The islands, reefs and keys shall take their timezone from the
# longitude they are located at.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mexico 1939 only - Feb 5 0:00 1:00 D
@ -2508,13 +2593,8 @@ Zone America/Santa_Isabel -7:39:28 - LMT 1922 Jan 1 0:20:32
###############################################################################
# Anguilla
# See America/Port_of_Spain.
# Antigua and Barbuda
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Antigua -4:07:12 - LMT 1912 Mar 2
-5:00 - EST 1951
-4:00 - AST
# See America/Port_of_Spain.
# Bahamas
#
@ -2581,10 +2661,7 @@ Zone Atlantic/Bermuda -4:19:18 - LMT 1930 Jan 1 2:00 # Hamilton
-4:00 US A%sT
# Cayman Is
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
-5:00 - EST
# See America/Panama.
# Costa Rica
@ -3107,6 +3184,7 @@ Zone America/Managua -5:45:08 - LMT 1890
Zone America/Panama -5:18:08 - LMT 1890
-5:19:36 - CMT 1908 Apr 22 # Colón Mean Time
-5:00 - EST
Link America/Panama America/Cayman
# Puerto Rico
# There are too many San Juans elsewhere, so we'll use 'Puerto_Rico'.

170
src/timezone/data/southamerica
Unescape View File

@ -1098,6 +1098,60 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914
# Chile
# From Paul Eggert (2015-04-03):
# Shanks & Pottenger says America/Santiago introduced standard time in
# 1890 and rounds its UTC offset to 70W40; guess that in practice this
# was the same offset as in 1916-1919. It also says Pacific/Easter
# standardized on 109W22 in 1890; assume this didn't change the clocks.
#
# Dates for America/Santiago from 1910 to 2004 are primarily from
# the following source, cited by Oscar van Vlijmen (2006-10-08):
# [1] Chile Law
# http://www.webexhibits.org/daylightsaving/chile.html
# This contains a copy of a this official table:
# Cambios en la hora oficial de Chile desde 1900 (retrieved 2008-03-30)
# http://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm
# [1] needs several corrections, though.
#
# The first set of corrections is from:
# [2] History of the Official Time of Chile
# http://www.horaoficial.cl/ing/horaof_ing.html (retrieved 2012-03-06). See:
# http://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html
# This is an English translation of:
# Historia de la hora oficial de Chile (retrieved 2012-10-24). See:
# http://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm
# A fancier Spanish version (requiring mouse-clicking) is at:
# http://www.horaoficial.cl/historia_hora.html
# Conflicts between [1] and [2] were resolved as follows:
#
# - [1] says the 1910 transition was Jan 1, [2] says Jan 10 and cites
# Boletín Nº 1, Aviso Nº 1 (1910). Go with [2].
#
# - [1] says SMT was -4:42:45, [2] says Chile's official time from
# 1916 to 1919 was -4:42:46.3, the meridian of Chile's National
# Astronomical Observatory (OAN), then located in what is now
# Quinta Normal in Santiago. Go with [2], rounding it to -4:42:46.
#
# - [1] says the 1918 transition was Sep 1, [2] says Sep 10 and cites
# Boletín Nº 22, Aviso Nº 129/1918 (1918-08-23). Go with [2].
#
# - [1] does not give times for transitions; assume they occur
# at midnight mainland time, the current common practice. However,
# go with [2]'s specification of 23:00 for the 1947-05-21 transition.
#
# Another correction to [1] is from Jesper Nørgaard Welen, who
# wrote (2006-10-08), "I think that there are some obvious mistakes in
# the suggested link from Oscar van Vlijmen,... for instance entry 66
# says that GMT-4 ended 1990-09-12 while entry 67 only begins GMT-3 at
# 1990-09-15 (they should have been 1990-09-15 and 1990-09-16
# respectively), but anyhow it clears up some doubts too."
#
# Data for Pacific/Easter from 1910 through 1967 come from Shanks &
# Pottenger. After that, for lack of better info assume
# Pacific/Easter is always two hours behind America/Santiago;
# this is known to work for DST transitions starting in 2008 and
# may well be true for earlier transitions.
# From Eduardo Krell (1995-10-19):
# The law says to switch to DST at midnight [24:00] on the second SATURDAY
# of October.... The law is the same for March and October.
@ -1110,78 +1164,35 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914
# Because of the same drought, the government decided to end DST later,
# on April 3, (one-time change).
# From Oscar van Vlijmen (2006-10-08):
# http://www.horaoficial.cl/cambio.htm
# From Jesper Nørgaard Welen (2006-10-08):
# I think that there are some obvious mistakes in the suggested link
# from Oscar van Vlijmen,... for instance entry 66 says that GMT-4
# ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15
# (they should have been 1990-09-15 and 1990-09-16 respectively), but
# anyhow it clears up some doubts too.
# From Paul Eggert (2014-08-12):
# The following data entries for Chile and America/Santiago are from
# <http://www.horaoficial.cl/horaof.htm> (2006-09-20), transcribed by
# Jesper Nørgaard Welen. The data entries for Pacific/Easter are from Shanks
# & Pottenger, except with DST transitions after 1932 cloned from
# America/Santiago. The pre-1980 Pacific/Easter data entries are dubious,
# but we have no other source.
# From Germán Poo-Caamaño (2008-03-03):
# Due to drought, Chile extends Daylight Time in three weeks. This
# is one-time change (Saturday 3/29 at 24:00 for America/Santiago
# and Saturday 3/29 at 22:00 for Pacific/Easter)
# The Supreme Decree is located at
# http://www.shoa.cl/servicios/supremo316.pdf
# and the instructions for 2008 are located in:
# http://www.horaoficial.cl/cambio.htm
#
# From José Miguel Garrido (2008-03-05):
# ...
# You could see the announces of the change on
# http://www.shoa.cl/noticias/2008/04hora/hora.htm
# From Angel Chiang (2010-03-04):
# Subject: DST in Chile exceptionally extended to 3 April due to earthquake
# http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098
# (in Spanish, last paragraph).
#
# This is breaking news. There should be more information available later.
# From Arthur David Olson (2010-03-06):
# Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch.
# From Glenn Eychaner (2011-03-02):
# It appears that the Chilean government has decided to postpone the
# change from summer time to winter time again, by three weeks to April
# 2nd:
# http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651
#
# This is not yet reflected in the official "cambio de hora" site, but
# probably will be soon:
# http://www.horaoficial.cl/cambio.htm
# From Arthur David Olson (2011-03-02):
# The emol.com article mentions a water shortage as the cause of the
# postponement, which may mean that it's not a permanent change.
# From Glenn Eychaner (2011-03-28):
# The article:
# http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E}
#
# In English:
# Chile's clocks will go back an hour this year on the 7th of May instead
# of this Saturday. They will go forward again the 3rd Saturday in
# August, not in October as they have since 1968. This is a pilot plan
# which will be reevaluated in 2012.
# August, not in October as they have since 1968.
# From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23):
# As stated in the website of the Chilean Energy Ministry
# http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html
# The Chilean Government has decided to postpone the entrance into winter time
# (to leave DST) from March 11 2012 to April 28th 2012. The decision has not
# been yet formalized but it will within the next days.
# (to leave DST) from March 11 2012 to April 28th 2012....
# Quote from the website communication:
#
# 6. For the year 2012, the dates of entry into winter time will be as follows:
@ -1206,22 +1217,17 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914
# DST Start: first Saturday of September 2014 (Sun 07 Sep 2014 04:00 UTC)
# http://www.diariooficial.interior.gob.cl//media/2014/02/19/do-20140219.pdf
# From Juan Correa (2015-01-28):
# ... today the Ministry of Energy announced that Chile will drop DST, will keep
# "summer time" (UTC -3 / UTC -5) all year round....
# http://www.minenergia.cl/ministerio/noticias/generales/ministerio-de-energia-anuncia.html
# NOTE: ChileAQ rules for Antarctic bases are stored separately in the
# 'antarctica' file.
# From Eduardo Romero Urra (2015-03-03):
# Today has been published officially that Chile will use the DST time
# permanently until March 25 of 2017
# http://www.diariooficial.interior.gob.cl/media/2015/03/03/1-large.jpg
#
# From Paul Eggert (2015-03-03):
# For now, assume that the extension will persist indefinitely.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Chile 1927 1932 - Sep 1 0:00 1:00 S
Rule Chile 1927 1931 - Sep 1 0:00 1:00 S
Rule Chile 1928 1932 - Apr 1 0:00 0 -
Rule Chile 1942 only - Jun 1 4:00u 0 -
Rule Chile 1942 only - Aug 1 5:00u 1:00 S
Rule Chile 1946 only - Jul 15 4:00u 1:00 S
Rule Chile 1946 only - Sep 1 3:00u 0:00 -
Rule Chile 1947 only - Apr 1 4:00u 0 -
Rule Chile 1968 only - Nov 3 4:00u 1:00 S
Rule Chile 1969 only - Mar 30 3:00u 0 -
Rule Chile 1969 only - Nov 23 4:00u 1:00 S
@ -1232,10 +1238,8 @@ Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 -
Rule Chile 1973 only - Sep 30 4:00u 1:00 S
Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S
Rule Chile 1987 only - Apr 12 3:00u 0 -
Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 -
Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S
Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S
Rule Chile 1990 only - Mar 18 3:00u 0 -
Rule Chile 1988 1990 - Mar Sun>=9 3:00u 0 -
Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 S
Rule Chile 1990 only - Sep 16 4:00u 1:00 S
Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 -
Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S
@ -1258,17 +1262,23 @@ Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S
# (1996-09) says 1998-03-08. Ignore these.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Santiago -4:42:46 - LMT 1890
-4:42:46 - SMT 1910 # Santiago Mean Time
-4:42:46 - SMT 1910 Jan 10 # Santiago Mean Time
-5:00 - CLT 1916 Jul 1 # Chile Time
-4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time
-4:00 - CLT 1919 Jul 1 # Chile Time
-4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time
-5:00 Chile CL%sT 1947 May 22 # Chile Time
-4:42:46 - SMT 1918 Sep 10
-4:00 - CLT 1919 Jul 1
-4:42:46 - SMT 1927 Sep 1
-5:00 Chile CL%sT 1932 Sep 1
-4:00 - CLT 1942 Jun 1
-5:00 - CLT 1942 Aug 1
-4:00 - CLT 1946 Jul 15
-4:00 1:00 CLST 1946 Sep 1 # central Chile
-4:00 - CLT 1947 Apr 1
-5:00 - CLT 1947 May 21 23:00
-4:00 Chile CL%sT 2015 Apr 26 3:00u
-3:00 - CLT
Zone Pacific/Easter -7:17:44 - LMT 1890
Zone Pacific/Easter -7:17:28 - LMT 1890
-7:17:28 - EMT 1932 Sep # Easter Mean Time
-7:00 Chile EAS%sT 1982 Mar 13 3:00u # Easter Time
-7:00 Chile EAS%sT 1982 Mar 14 3:00u # Easter Time
-6:00 Chile EAS%sT 2015 Apr 26 3:00u
-5:00 - EAST
#
@ -1276,6 +1286,25 @@ Zone Pacific/Easter -7:17:44 - LMT 1890
# Other Chilean locations, including Juan Fernández Is, Desventuradas Is,
# and Antarctic bases, are like America/Santiago.
# Antarctic base using South American rules
# (See the file 'antarctica' for more.)
#
# Palmer, Anvers Island, since 1965 (moved 2 miles in 1968)
#
# From Ethan Dicks (1996-10-06):
# It keeps the same time as Punta Arenas, Chile, because, just like us
# and the South Pole, that's the other end of their supply line....
# I verified with someone who was there that since 1980,
# Palmer has followed Chile. Prior to that, before the Falklands War,
# Palmer used to be supplied from Argentina.
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Antarctica/Palmer 0 - zzz 1965
-4:00 Arg AR%sT 1969 Oct 5
-3:00 Arg AR%sT 1982 May
-4:00 Chile CL%sT 2015 Apr 26 3:00u
-3:00 - CLT
# Colombia
# Milne gives 4:56:16.4 for Bogotá time in 1899; round to nearest. He writes,
@ -1603,6 +1632,7 @@ Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2
# These all agree with Trinidad and Tobago since 1970.
Link America/Port_of_Spain America/Anguilla
Link America/Port_of_Spain America/Antigua
Link America/Port_of_Spain America/Dominica
Link America/Port_of_Spain America/Grenada
Link America/Port_of_Spain America/Guadeloupe

8
src/timezone/known_abbrevs.txt
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@ -38,10 +38,10 @@ CEST 7200 D
CET 3600
CHADT 49500 D
CHAST 45900
CHOST 32400 D
CHOT 28800
CHUT 36000
CKT -36000
CLST -10800 D
CLT -10800
COT -18000
CST -18000
@ -52,7 +52,6 @@ CXT 25200
ChST 36000
DAVT 25200
DDUT 36000
EASST -18000 D
EAST -18000
EAT 10800
ECT -18000
@ -75,9 +74,9 @@ GMT 0
GST -7200
GST 14400
GYT -14400
HADT -32400 D
HAST -36000
HDT -32400 D
HKT 28800
HOVST 28800 D
HOVT 25200
HST -36000
ICT 25200
@ -158,6 +157,7 @@ TLT 32400
TMT 18000
TOT 46800
TVT 43200
ULAST 32400 D
ULAT 28800
UTC 0
UYST -7200 D

6
src/timezone/tznames/America.txt
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@ -231,9 +231,11 @@ GMT 0 # Greenwich Mean Time
# (Europe/London)
GYT America/Guyana # Guyana Time
# (America/Guyana)
HADT -32400 D # Hawaii-Aleutian Daylight Time
HADT -32400 D # Hawaii-Aleutian Daylight Time (obsolete abbreviation)
# (America/Adak)
HAST -36000 # Hawaii-Aleutian Standard Time
HAST -36000 # Hawaii-Aleutian Standard Time (obsolete abbreviation)
# (America/Adak)
HDT -32400 D # Hawaiian-Aleutian Daylight Time
# (America/Adak)
MDT -21600 D # Mexico Mountain Daylight Time
# Mountain Daylight Time

9
src/timezone/tznames/Asia.txt
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@ -55,7 +55,8 @@ BORT 28800 # Borneo Time (Indonesia) (not in zic)
BTT 21600 # Bhutan Time
# (Asia/Thimphu)
CCT 28800 # China Coastal Time (not in zic)
CHOST 36000 D # Choibalsan Summer Time (obsolete)
CHOST Asia/Choibalsan # Choibalsan Summer Time
# (Asia/Choibalsan)
CHOT Asia/Choibalsan # Choibalsan Time
# (Asia/Choibalsan)
CIT 28800 # Central Indonesia Time (obsolete, WITA is now preferred)
@ -126,7 +127,8 @@ GST 14400 # Gulf Standard Time
# (Asia/Dubai)
# (Asia/Muscat)
HKT 28800 # Hong Kong Time (not in zic)
HOVST 28800 D # Hovd Summer Time (obsolete)
HOVST 28800 D # Hovd Summer Time
# (Asia/Hovd)
HOVT Asia/Hovd # Hovd Time
# (Asia/Hovd)
ICT 25200 # Indochina Time
@ -211,7 +213,8 @@ TLT 32400 # East Timor Time
# (Asia/Dili)
TMT Asia/Ashgabat # Turkmenistan Time
# (Asia/Ashgabat)
ULAST 32400 D # Ulan Bator Summer Time (obsolete)
ULAST 32400 D # Ulan Bator Summer Time
# (Asia/Ulaanbaatar)
ULAT Asia/Ulaanbaatar # Ulan Bator Time
# (Asia/Ulaanbaatar)
UZST 21600 D # Uzbekistan Summer Time

5
src/timezone/tznames/Default
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@ -340,7 +340,8 @@ TJT 18000 # Tajikistan Time
# (Asia/Dushanbe)
TMT Asia/Ashgabat # Turkmenistan Time
# (Asia/Ashgabat)
ULAST 32400 D # Ulan Bator Summer Time (obsolete)
ULAST 32400 D # Ulan Bator Summer Time
# (Asia/Ulaanbaatar)
ULAT Asia/Ulaanbaatar # Ulan Bator Time
# (Asia/Ulaanbaatar)
UZST 21600 D # Uzbekistan Summer Time
@ -684,7 +685,7 @@ CHUT 36000 # Chuuk Time
# (Pacific/Chuuk)
CKT Pacific/Rarotonga # Cook Islands Time
# (Pacific/Rarotonga)
EASST Pacific/Easter # Easter Island Summer Time (Chile)
EASST Pacific/Easter # Easter Island Summer Time (obsolete)
# (Pacific/Easter)
EAST Pacific/Easter # Easter Island Time (Chile)
# (Pacific/Easter)

2
src/timezone/tznames/Pacific.txt
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@ -23,7 +23,7 @@ CHUT 36000 # Chuuk Time
# (Pacific/Chuuk)
CKT Pacific/Rarotonga # Cook Islands Time
# (Pacific/Rarotonga)
EASST Pacific/Easter # Easter Island Summer Time (Chile)
EASST Pacific/Easter # Easter Island Summer Time (obsolete)
# (Pacific/Easter)
# CONFLICT! EAST is not unique
# Other timezones:

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