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5722 Update timezone info db to 2015a
*** 4,28 ****
# This file is by no means authoritative; if you think you know better,
# go ahead and edit the file (and please send any changes to
# tz@iana.org for general use in the future). For more, please see
# the file CONTRIBUTING in the tz distribution.
! # From Paul Eggert (2013-08-11):
#
! # A good source for time zone historical data outside the U.S. is
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
# San Diego: ACS Publications, Inc. (2003).
#
# Gwillim Law writes that a good source
# for recent time zone data is the International Air Transport
# Association's Standard Schedules Information Manual (IATA SSIM),
# published semiannually. Law sent in several helpful summaries
! # of the IATA's data after 1990.
#
- # Except where otherwise noted, Shanks & Pottenger is the source for
- # entries through 1990, and IATA SSIM is the source for entries afterwards.
- #
# Another source occasionally used is Edward W. Whitman, World Time Differences,
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
# I found in the UCLA library.
#
# For data circa 1899, a common source is:
--- 4,27 ----
# This file is by no means authoritative; if you think you know better,
# go ahead and edit the file (and please send any changes to
# tz@iana.org for general use in the future). For more, please see
# the file CONTRIBUTING in the tz distribution.
! # From Paul Eggert (2014-10-31):
#
! # Unless otherwise specified, the source for data through 1990 is:
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
# San Diego: ACS Publications, Inc. (2003).
+ # Unfortunately this book contains many errors and cites no sources.
#
# Gwillim Law writes that a good source
# for recent time zone data is the International Air Transport
# Association's Standard Schedules Information Manual (IATA SSIM),
# published semiannually. Law sent in several helpful summaries
! # of the IATA's data after 1990. Except where otherwise noted,
! # IATA SSIM is the source for entries after 1990.
#
# Another source occasionally used is Edward W. Whitman, World Time Differences,
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
# I found in the UCLA library.
#
# For data circa 1899, a common source is:
*** 45,58 ****
# 2:00 IST IDT Israel
# 3:00 AST ADT Arabia*
# 3:30 IRST IRDT Iran
# 4:00 GST Gulf*
# 5:30 IST India
! # 7:00 ICT Indochina*
# 7:00 WIB west Indonesia (Waktu Indonesia Barat)
# 8:00 WITA central Indonesia (Waktu Indonesia Tengah)
# 8:00 CST China
# 8:00 JWST Western Standard Time (Japan, 1896/1937)*
# 9:00 JCST Central Standard Time (Japan, 1896/1937)
# 9:00 WIT east Indonesia (Waktu Indonesia Timur)
# 9:00 JST JDT Japan
# 9:00 KST KDT Korea
--- 44,58 ----
# 2:00 IST IDT Israel
# 3:00 AST ADT Arabia*
# 3:30 IRST IRDT Iran
# 4:00 GST Gulf*
# 5:30 IST India
! # 7:00 ICT Indochina, most times and locations*
# 7:00 WIB west Indonesia (Waktu Indonesia Barat)
# 8:00 WITA central Indonesia (Waktu Indonesia Tengah)
# 8:00 CST China
+ # 8:00 IDT Indochina, 1943-45, 1947-55, 1960-75 (some locations)*
# 8:00 JWST Western Standard Time (Japan, 1896/1937)*
# 9:00 JCST Central Standard Time (Japan, 1896/1937)
# 9:00 WIT east Indonesia (Waktu Indonesia Timur)
# 9:00 JST JDT Japan
# 9:00 KST KDT Korea
*** 143,156 ****
4:00 - AZT 1996 # Azerbaijan Time
4:00 EUAsia AZ%sT 1997
4:00 Azer AZ%sT
# Bahrain
! # Zone NAME GMTOFF RULES FORMAT [UNTIL]
! Zone Asia/Bahrain 3:22:20 - LMT 1920 # Manamah
! 4:00 - GST 1972 Jun
! 3:00 - AST
# Bangladesh
# From Alexander Krivenyshev (2009-05-13):
# According to newspaper Asian Tribune (May 6, 2009) Bangladesh may introduce
# Daylight Saving Time from June 16 to Sept 30
--- 143,153 ----
4:00 - AZT 1996 # Azerbaijan Time
4:00 EUAsia AZ%sT 1997
4:00 Azer AZ%sT
# Bahrain
! # See Asia/Qatar.
# Bangladesh
# From Alexander Krivenyshev (2009-05-13):
# According to newspaper Asian Tribune (May 6, 2009) Bangladesh may introduce
# Daylight Saving Time from June 16 to Sept 30
*** 269,285 ****
6:30 - BURT 1942 May # Burma Time
9:00 - JST 1945 May 3
6:30 - MMT # Myanmar Time
# Cambodia
! # Zone NAME GMTOFF RULES FORMAT [UNTIL]
! Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9
! 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
! 7:00 - ICT 1912 May
! 8:00 - ICT 1931 May
! 7:00 - ICT
# China
# From Guy Harris:
# People's Republic of China. Yes, they really have only one time zone.
--- 266,278 ----
6:30 - BURT 1942 May # Burma Time
9:00 - JST 1945 May 3
6:30 - MMT # Myanmar Time
# Cambodia
! # See Asia/Bangkok.
+
# China
# From Guy Harris:
# People's Republic of China. Yes, they really have only one time zone.
*** 891,900 ****
--- 884,897 ----
# Lakshadweep (Laccadive, Minicoy and Amindivi Is)
# Nicobar Is
# Indonesia
#
+ # From Paul Eggert (2014-09-06):
+ # The 1876 Report of the Secretary of the [US] Navy, p 306 says that Batavia
+ # civil time was 7:07:12.5; round to even for Jakarta.
+ #
# From Gwillim Law (2001-05-28), overriding Shanks & Pottenger:
# http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime
# says that Indonesia's time zones changed on 1988-01-01. Looking at some
# time zone maps, I think that must refer to Western Borneo (Kalimantan Barat
# and Kalimantan Tengah) switching from UTC+8 to UTC+7.
*** 1660,1724 ****
###############################################################################
# Korea (North and South)
# From Annie I. Bang (2006-07-10):
! # http://www.koreaherald.co.kr/SITE/data/html_dir/2006/07/10/200607100012.asp
! # The Ministry of Commerce, Industry and Energy has already
! # commissioned a research project [to reintroduce DST] and has said
! # the system may begin as early as 2008.... Korea ran a daylight
! # saving program from 1949-61 but stopped it during the 1950-53 Korean War.
! # From Shanks & Pottenger:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
! Rule ROK 1960 only - May 15 0:00 1:00 D
! Rule ROK 1960 only - Sep 13 0:00 0 S
! Rule ROK 1987 1988 - May Sun>=8 0:00 1:00 D
! Rule ROK 1987 1988 - Oct Sun>=8 0:00 0 S
! # From Paul Eggert (2014-07-01):
! # The following entries are from Shanks & Pottenger, except that I
! # guessed that time zone abbreviations through 1945 followed the same
# rules as discussed under Taiwan, with nominal switches from JST to KST
# when the respective cities were taken over by the Allies after WWII.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
! Zone Asia/Seoul 8:27:52 - LMT 1890
! 8:30 - KST 1904 Dec
! 9:00 - JCST 1928
! 8:30 - KST 1932
9:00 - JCST 1937 Oct 1
9:00 - JST 1945 Sep 8
9:00 - KST 1954 Mar 21
! 8:00 ROK K%sT 1961 Aug 10
! 8:30 - KST 1968 Oct
9:00 ROK K%sT
! Zone Asia/Pyongyang 8:23:00 - LMT 1890
! 8:30 - KST 1904 Dec
! 9:00 - JCST 1928
! 8:30 - KST 1932
9:00 - JCST 1937 Oct 1
9:00 - JST 1945 Aug 24
- 9:00 - KST 1954 Mar 21
- 8:00 - KST 1961 Aug 10
9:00 - KST
###############################################################################
# Kuwait
! # Zone NAME GMTOFF RULES FORMAT [UNTIL]
! Zone Asia/Kuwait 3:11:56 - LMT 1950
! 3:00 - AST
# Laos
! # Zone NAME GMTOFF RULES FORMAT [UNTIL]
! Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9 # or Viangchan
! 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
! 7:00 - ICT 1912 May
! 8:00 - ICT 1931 May
! 7:00 - ICT
# Lebanon
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Lebanon 1920 only - Mar 28 0:00 1:00 S
Rule Lebanon 1920 only - Oct 25 0:00 0 -
Rule Lebanon 1921 only - Apr 3 0:00 1:00 S
--- 1657,1741 ----
###############################################################################
# Korea (North and South)
# From Annie I. Bang (2006-07-10):
! # http://www.koreaherald.com/view.php?ud=200607100012
! # Korea ran a daylight saving program from 1949-61 but stopped it
! # during the 1950-53 Korean War. The system was temporarily enforced
! # between 1987 and 1988 ...
! # From Sanghyuk Jung (2014-10-29):
! # http://mm.icann.org/pipermail/tz/2014-October/021830.html
! # According to the Korean Wikipedia
! # http://ko.wikipedia.org/wiki/한국_표준시
! # [oldid=12896437 2014-09-04 08:03 UTC]
! # DST in Republic of Korea was as follows.... And I checked old
! # newspapers in Korean, all articles correspond with data in Wikipedia.
! # For example, the article in 1948 (Korean Language) proved that DST
! # started at June 1 in that year. For another example, the article in
! # 1988 said that DST started at 2:00 AM in that year.
!
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
! Rule ROK 1948 only - Jun 1 0:00 1:00 D
! Rule ROK 1948 only - Sep 13 0:00 0 S
! Rule ROK 1949 only - Apr 3 0:00 1:00 D
! Rule ROK 1949 1951 - Sep Sun>=8 0:00 0 S
! Rule ROK 1950 only - Apr 1 0:00 1:00 D
! Rule ROK 1951 only - May 6 0:00 1:00 D
! Rule ROK 1955 only - May 5 0:00 1:00 D
! Rule ROK 1955 only - Sep 9 0:00 0 S
! Rule ROK 1956 only - May 20 0:00 1:00 D
! Rule ROK 1956 only - Sep 30 0:00 0 S
! Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D
! Rule ROK 1957 1960 - Sep Sun>=18 0:00 0 S
! Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D
! Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S
! # From Paul Eggert (2014-10-30):
! # The Korean Wikipedia entry gives the following sources for UT offsets:
! #
! # 1908: Official Journal Article No. 3994 (Edict No. 5)
! # 1912: Governor-General of Korea Official Gazette Issue No. 367
! # (Announcement No. 338)
! # 1954: Presidential Decree No. 876 (1954-03-17)
! # 1961: Law No. 676 (1961-08-07)
! # 1987: Law No. 3919 (1986-12-31)
! #
! # The Wikipedia entry also has confusing information about a change
! # to UT+9 in April 1910, but then what would be the point of the later change
! # to UT+9 on 1912-01-01? Omit the 1910 change for now.
! #
! # I guessed that time zone abbreviations through 1945 followed the same
# rules as discussed under Taiwan, with nominal switches from JST to KST
# when the respective cities were taken over by the Allies after WWII.
+ #
+ # For Pyongyang we have no information; guess no changes since World War II.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
! Zone Asia/Seoul 8:27:52 - LMT 1908 Apr 1
! 8:30 - KST 1912 Jan 1
9:00 - JCST 1937 Oct 1
9:00 - JST 1945 Sep 8
9:00 - KST 1954 Mar 21
! 8:30 ROK K%sT 1961 Aug 10
9:00 ROK K%sT
! Zone Asia/Pyongyang 8:23:00 - LMT 1908 Apr 1
! 8:30 - KST 1912 Jan 1
9:00 - JCST 1937 Oct 1
9:00 - JST 1945 Aug 24
9:00 - KST
###############################################################################
# Kuwait
! # See Asia/Riyadh.
# Laos
! # See Asia/Bangkok.
+
# Lebanon
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Lebanon 1920 only - Mar 28 0:00 1:00 S
Rule Lebanon 1920 only - Oct 25 0:00 0 -
Rule Lebanon 1921 only - Apr 3 0:00 1:00 S
*** 1930,1946 ****
Zone Asia/Kathmandu 5:41:16 - LMT 1920
5:30 - IST 1986
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 3:54:24 - LMT 1920
- 4:00 - GST
-
# Pakistan
# From Rives McDow (2002-03-13):
# I have been advised that Pakistan has decided to adopt dst on a
# TRIAL basis for one year, starting 00:01 local time on April 7, 2002
--- 1947,1958 ----
Zone Asia/Kathmandu 5:41:16 - LMT 1920
5:30 - IST 1986
5:45 - NPT # Nepal Time
# Oman
+ # See Asia/Dubai.
# Pakistan
# From Rives McDow (2002-03-13):
# I have been advised that Pakistan has decided to adopt dst on a
# TRIAL basis for one year, starting 00:01 local time on April 7, 2002
*** 2429,2438 ****
--- 2441,2451 ----
# Qatar
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha
4:00 - GST 1972 Jun
3:00 - AST
+ Link Asia/Qatar Asia/Bahrain
# Saudi Arabia
#
# From Paul Eggert (2014-07-15):
# Time in Saudi Arabia and other countries in the Arabian peninsula was not
*** 2455,2464 ****
--- 2468,2479 ----
# the country. Ignore this, as it's before our 1970 cutoff.
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Riyadh 3:06:52 - LMT 1947 Mar 14
3:00 - AST
+ Link Asia/Riyadh Asia/Aden # Yemen
+ Link Asia/Riyadh Asia/Kuwait
# Singapore
# taken from Mok Ly Yng (2003-10-30)
# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
*** 2726,2735 ****
--- 2741,2752 ----
# Thailand
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Bangkok 6:42:04 - LMT 1880
6:42:04 - BMT 1920 Apr # Bangkok Mean Time
7:00 - ICT
+ Link Asia/Bangkok Asia/Phnom_Penh # Cambodia
+ Link Asia/Bangkok Asia/Vientiane # Laos
# Turkmenistan
# From Shanks & Pottenger.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad
*** 2741,2750 ****
--- 2758,2768 ----
# United Arab Emirates
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dubai 3:41:12 - LMT 1920
4:00 - GST
+ Link Asia/Dubai Asia/Muscat # Oman
# Uzbekistan
# Byalokoz 1919 says Uzbekistan was 4:27:53.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Samarkand 4:27:53 - LMT 1924 May 2
*** 2763,2793 ****
5:00 RussiaAsia UZ%sT 1992
5:00 - UZT
# 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 Minh
# City"; use Ho_Chi_Minh below to avoid a name of more than 14 characters.
! # From Shanks & Pottenger:
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
! Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jun 9
! 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
! 7:00 - ICT 1912 May
! 8:00 - ICT 1931 May
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 2:59:54 - LMT 1950
! 3:00 - AST
--- 2781,2848 ----
5:00 RussiaAsia UZ%sT 1992
5:00 - UZT
# Vietnam
! # From Paul Eggert (2014-10-04):
# 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 for LMT before 1906.
# From Arthur David Olson (2008-03-18):
# The English-language name of Vietnam's most populous city is "Ho Chi Minh
# City"; use Ho_Chi_Minh below to avoid a name of more than 14 characters.
! # From Paul Eggert (2014-10-21) after a heads-up from Trần Ngọc Quân:
! # Trần Tiến Bình's authoritative book "Lịch Việt Nam: thế kỷ XX-XXI (1901-2100)"
! # (Nhà xuất bản Văn Hoá - Thông Tin, Hanoi, 2005), pp 49-50,
! # is quoted verbatim in:
! # http://www.thoigian.com.vn/?mPage=P80D01
! # is translated by Brian Inglis in:
! # http://mm.icann.org/pipermail/tz/2014-October/021654.html
! # and is the basis for the information below.
! #
! # The 1906 transition was effective July 1 and standardized Indochina to
! # Phù Liễn Observatory, legally 104 deg. 17'17" east of Paris.
! # It's unclear whether this meant legal Paris Mean Time (00:09:21) or
! # the Paris Meridian (2 deg. 20'14.03" E); the former yields 07:06:30.1333...
! # and the latter 07:06:29.333... so either way it rounds to 07:06:30,
! # which is used below even though the modern-day Phù Liễn Observatory
! # is closer to 07:06:31. Abbreviate Phù Liễn Mean Time as PLMT.
! #
! # The following transitions occurred in Indochina in general (before 1954)
! # and in South Vietnam in particular (after 1954):
! # To 07:00 on 1911-05-01.
! # To 08:00 on 1942-12-31 at 23:00.
! # To 09:00 in 1945-03-14 at 23:00.
! # To 07:00 on 1945-09-02 in Vietnam.
! # To 08:00 on 1947-04-01 in French-controlled Indochina.
! # To 07:00 on 1955-07-01 in South Vietnam.
! # To 08:00 on 1959-12-31 at 23:00 in South Vietnam.
! # To 07:00 on 1975-06-13 in South Vietnam.
! #
! # Trần cites the following sources; it's unclear which supplied the info above.
! #
! # Hoàng Xuân Hãn: "Lịch và lịch Việt Nam". Tập san Khoa học Xã hội,
! # No. 9, Paris, February 1982.
! #
! # Lê Thành Lân: "Lịch và niên biểu lịch sử hai mươi thế kỷ (0001-2010)",
! # NXB Thống kê, Hanoi, 2000.
! #
! # Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu",
! # NXB Thuận Hoá, Huế, 1995.
!
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
! Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jul 1
! 7:06:30 - PLMT 1911 May 1
! 7:00 - ICT 1942 Dec 31 23:00
! 8:00 - IDT 1945 Mar 14 23:00
! 9:00 - JST 1945 Sep 2
! 7:00 - ICT 1947 Apr 1
! 8:00 - IDT 1955 Jul 1
! 7:00 - ICT 1959 Dec 31 23:00
! 8:00 - IDT 1975 Jun 13
7:00 - ICT
# Yemen
! # See Asia/Riyadh.