version 1.1.1.18.2.4, 2019/01/18 08:50:09 |
version 1.1.1.19, 2018/03/24 01:45:11 |
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# tzdb data for Asia and environs |
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# This file is in the public domain, so clarified as of |
# This file is in the public domain, so clarified as of |
# 2009-05-17 by Arthur David Olson. |
# 2009-05-17 by Arthur David Olson. |
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# tz@iana.org for general use in the future). For more, please see |
# tz@iana.org for general use in the future). For more, please see |
# the file CONTRIBUTING in the tz distribution. |
# the file CONTRIBUTING in the tz distribution. |
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# From Paul Eggert (2018-06-19): |
# From Paul Eggert (2017-01-13): |
# |
# |
# Unless otherwise specified, the source for data through 1990 is: |
# Unless otherwise specified, the source for data through 1990 is: |
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), |
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), |
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# A reliable and entertaining source about time zones is |
# A reliable and entertaining source about time zones is |
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). |
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). |
# |
# |
# The following alphabetic abbreviations appear in these tables |
# The following alphabetic abbreviations appear in these tables: |
# (corrections are welcome): |
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# std dst |
# std dst |
# LMT Local Mean Time |
# LMT Local Mean Time |
# 2:00 EET EEST Eastern European Time |
# 2:00 EET EEST Eastern European Time |
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# 7:00 WIB west Indonesia (Waktu Indonesia Barat) |
# 7:00 WIB west Indonesia (Waktu Indonesia Barat) |
# 8:00 WITA central Indonesia (Waktu Indonesia Tengah) |
# 8:00 WITA central Indonesia (Waktu Indonesia Tengah) |
# 8:00 CST China |
# 8:00 CST China |
# 8:00 PST PDT* Philippine Standard Time |
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# 8:30 KST KDT Korea when at +0830 |
# 8:30 KST KDT Korea when at +0830 |
# 9:00 WIT east Indonesia (Waktu Indonesia Timur) |
# 9:00 WIT east Indonesia (Waktu Indonesia Timur) |
# 9:00 JST JDT Japan |
# 9:00 JST JDT Japan |
# 9:00 KST KDT Korea when at +09 |
# 9:00 KST KDT Korea when at +09 |
# 9:30 ACST Australian Central Standard Time |
# 9:30 ACST Australian Central Standard Time |
# *I invented the abbreviation PDT; see "Philippines" below. |
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# Otherwise, these tables typically use numeric abbreviations like +03 |
# Otherwise, these tables typically use numeric abbreviations like +03 |
# and +0330 for integer hour and minute UT offsets. Although earlier |
# and +0330 for integer hour and minute UT offsets. Although earlier |
# editions invented alphabetic time zone abbreviations for every |
# editions invented alphabetic time zone abbreviations for every |
Line 286 Zone Asia/Yangon 6:24:47 - LMT 1880 |
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Line 281 Zone Asia/Yangon 6:24:47 - LMT 1880 |
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# China |
# China |
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# From Paul Eggert (2018-10-02): |
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# The following comes from Table 1 of: |
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# Li Yu. Research on the daylight saving movement in 1940s Shanghai. |
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# Nanjing Journal of Social Sciences. 2014;(2):144-50. |
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# http://oversea.cnki.net/kns55/detail.aspx?dbname=CJFD2014&filename=NJSH201402020 |
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# The table lists dates only; I am guessing 00:00 and 24:00 transition times. |
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# Also, the table lists the planned end of DST in 1949, but the corresponding |
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# zone line cuts this off on May 28, when the Communists took power. |
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# |
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
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Rule Shang 1940 only - Jun 1 0:00 1:00 D |
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Rule Shang 1940 only - Oct 12 24:00 0 S |
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Rule Shang 1941 only - Mar 15 0:00 1:00 D |
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Rule Shang 1941 only - Nov 1 24:00 0 S |
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Rule Shang 1942 only - Jan 31 0:00 1:00 D |
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Rule Shang 1945 only - Sep 1 24:00 0 S |
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Rule Shang 1946 only - May 15 0:00 1:00 D |
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Rule Shang 1946 only - Sep 30 24:00 0 S |
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Rule Shang 1947 only - Apr 15 0:00 1:00 D |
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Rule Shang 1947 only - Oct 31 24:00 0 S |
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Rule Shang 1948 1949 - May 1 0:00 1:00 D |
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Rule Shang 1948 1949 - Sep 30 24:00 0 S #plan |
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# From Guy Harris: |
# From Guy Harris: |
# People's Republic of China. Yes, they really have only one time zone. |
# People's Republic of China. Yes, they really have only one time zone. |
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Line 335 Rule Shang 1948 1949 - Sep 30 24:00 0 S |
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Line 307 Rule Shang 1948 1949 - Sep 30 24:00 0 S |
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# time - sort of", Los Angeles Times, 1986-05-05 ... [says] that China began |
# time - sort of", Los Angeles Times, 1986-05-05 ... [says] that China began |
# observing daylight saving time in 1986. |
# observing daylight saving time in 1986. |
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# From P Chan (2018-05-07): |
# From Paul Eggert (2014-06-30): |
# The start and end time of DST in China [from 1986 on] should be 2:00 |
# Shanks & Pottenger have China switching to a single time zone in 1980, but |
# (i.e. 2:00 to 3:00 at the start and 2:00 to 1:00 at the end).... |
# this doesn't seem to be correct. They also write that China observed summer |
# Government notices about summer time: |
# DST from 1986 through 1991, which seems to match the above commentary, so |
# |
# go with them for DST rules as follows: |
# 1986-04-12 http://www.zj.gov.cn/attach/zfgb/198608.pdf p.21-22 |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
# (To establish summer time from 1986. On 4 May, set the clocks ahead one hour |
Rule Shang 1940 only - Jun 3 0:00 1:00 D |
# at 2 am. On 14 September, set the clocks backward one hour at 2 am.) |
Rule Shang 1940 1941 - Oct 1 0:00 0 S |
# |
Rule Shang 1941 only - Mar 16 0:00 1:00 D |
# 1987-02-15 http://www.gov.cn/gongbao/shuju/1987/gwyb198703.pdf p.114 |
Rule PRC 1986 only - May 4 0:00 1:00 D |
# (Summer time in 1987 to start from 12 April until 13 September) |
Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S |
# |
Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D |
# 1987-09-09 http://www.gov.cn/gongbao/shuju/1987/gwyb198721.pdf p.709 |
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# (From 1988, summer time to start from 2 am of the first Sunday of mid-April |
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# until 2 am of the first Sunday of mid-September) |
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# |
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# 1992-03-03 http://www.gov.cn/gongbao/shuju/1992/gwyb199205.pdf p.152 |
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# (To suspend summer time from 1992) |
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# |
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# The first page of People's Daily on 12 April 1988 stating that summer time |
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# to begin on 17 April. |
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# http://data.people.com.cn/pic/101p/1988/04/1988041201.jpg |
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
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Rule PRC 1986 only - May 4 2:00 1:00 D |
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Rule PRC 1986 1991 - Sep Sun>=11 2:00 0 S |
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Rule PRC 1987 1991 - Apr Sun>=11 2:00 1:00 D |
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# From Anthony Fok (2001-12-20): |
# From Anthony Fok (2001-12-20): |
# BTW, I did some research on-line and found some info regarding these five |
# BTW, I did some research on-line and found some info regarding these five |
Line 383 Rule PRC 1987 1991 - Apr Sun>=11 2:00 1 |
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Line 340 Rule PRC 1987 1991 - Apr Sun>=11 2:00 1 |
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# Alois Treindl kindly sent me translations of the following two sources: |
# Alois Treindl kindly sent me translations of the following two sources: |
# |
# |
# (1) |
# (1) |
# Guo Qing-sheng (National Time-Service Center, CAS, Xi'an 710600, China) |
# Guo Qingsheng (National Time-Service Center, CAS, Xi'an 710600, China) |
# Beijing Time at the Beginning of the PRC |
# Beijing Time at the Beginning of the PRC |
# China Historical Materials of Science and Technology |
# China Historical Materials of Science and Technology |
# (Zhongguo ke ji shi liao, ä¸åÖ¿î©Âè³àéï²æËù). 2003;24(1):5-9. |
# (Zhongguo ke ji shi liao, èºåÖ¿î©Âè³àéï²æËù), Vol. 24, No. 1 (2003) |
# http://oversea.cnki.net/kcms/detail/detail.aspx?filename=ZGKS200301000&dbname=CJFD2003 |
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# It gives evidence that at the beginning of the PRC, Beijing time was |
# It gives evidence that at the beginning of the PRC, Beijing time was |
# officially apparent solar time! However, Guo also says that the |
# officially apparent solar time! However, Guo also says that the |
# evidence is dubious, as the relevant institute of astronomy had not |
# evidence is dubious, as the relevant institute of astronomy had not |
Line 564 Rule PRC 1987 1991 - Apr Sun>=11 2:00 1 |
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Line 520 Rule PRC 1987 1991 - Apr Sun>=11 2:00 1 |
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# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
# Beijing time, used throughout China; represented by Shanghai. |
# Beijing time, used throughout China; represented by Shanghai. |
Zone Asia/Shanghai 8:05:43 - LMT 1901 |
Zone Asia/Shanghai 8:05:43 - LMT 1901 |
8:00 Shang C%sT 1949 May 28 |
8:00 Shang C%sT 1949 |
8:00 PRC C%sT |
8:00 PRC C%sT |
# Xinjiang time, used by many in western China; represented by rümqi / rümchi |
# Xinjiang time, used by many in western China; represented by rümqi / rümchi |
# / Wulumuqi. (Please use Asia/Shanghai if you prefer Beijing time.) |
# / Wulumuqi. (Please use Asia/Shanghai if you prefer Beijing time.) |
Line 586 Zone Asia/Urumqi 5:50:20 - LMT 1928 |
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Line 542 Zone Asia/Urumqi 5:50:20 - LMT 1928 |
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# obtained from |
# obtained from |
# http://www.hko.gov.hk/gts/time/Summertime.htm |
# http://www.hko.gov.hk/gts/time/Summertime.htm |
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# From Phake Nick (2018-10-27): |
# From Arthur David Olson (2009-10-28): |
# According to Singaporean newspaper |
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# http://eresources.nlb.gov.sg/newspapers/Digitised/Article/singfreepresswk19041102-1.2.37 |
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# the day that Hong Kong start using GMT+8 should be Oct 30, 1904. |
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# |
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# From Paul Eggert (2018-11-17): |
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# Hong Kong had a time ball near the Marine Police Station, Tsim Sha Tsui. |
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# "The ball was raised manually each day and dropped at exactly 1pm |
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# (except on Sundays and Government holidays)." |
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# Dyson AD. From Time Ball to Atomic Clock. Hong Kong Government. 1983. |
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# <https://www.hko.gov.hk/publica/gen_pub/timeball_atomic_clock.pdf> |
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# "From 1904 October 30 the time-ball at Hong Kong has been dropped by order |
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# of the Governor of the Colony at 17h 0m 0s G.M.T., which is 23m 18s.14 in |
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# advance of 1h 0m 0s of Hong Kong mean time." |
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# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc. |
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# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382 |
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# |
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# From Joseph Myers (2018-11-18): |
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# An astronomer before 1925 referring to GMT would have been using the old |
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# astronomical convention where the day started at noon, not midnight. |
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# |
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# From Steve Allen (2018-11-17): |
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# Meteorological Observations made at the Hongkong Observatory in the year 1904 |
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# page 4 <https://books.google.com/books?id=kgw5AQAAMAAJ&pg=RA4-PA4> |
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# ... the log of drop times in Table II shows that on Sunday 1904-10-30 the |
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# ball was dropped. So that looks like a special case drop for the sake |
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# of broadcasting the new local time. |
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# |
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# From Phake Nick (2018-11-18): |
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# According to The Hong Kong Weekly Press, 1904-10-29, p.324, the |
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# governor of Hong Kong at the time stated that "We are further desired to |
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# make it known that the change will be effected by firing the gun and by the |
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# dropping of the Ball at 23min. 18sec. before one." |
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# From Paul Eggert (2018-11-18): |
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# See <https://mmis.hkpl.gov.hk> for this; unfortunately Flash is required. |
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# From Phake Nick (2018-10-26): |
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# I went to check microfilm records stored at Hong Kong Public Library.... |
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# on September 30 1941, according to Ta Kung Pao (Hong Kong edition), it was |
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# stated that fallback would occur on the next day (the 1st)'s "03:00 am (Hong |
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# Kong Time 04:00 am)" and the clock will fall back for a half hour. (03:00 |
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# probably refer to the time commonly used in mainland China at the time given |
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# the paper's background) ... the sunrise/sunset time given by South China |
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# Morning Post for October 1st was indeed moved by half an hour compares to |
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# before. After that, in December, the battle to capture Hong Kong started and |
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# the library doesn't seems to have any record stored about press during that |
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# period of time. Some media resumed publication soon after that within the |
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# same month, but there were not much information about time there. Later they |
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# started including a radio program guide when they restored radio service, |
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# explicitly mentioning it use Tokyo standard time, and later added a note |
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# saying it's half an hour ahead of the old Hong Kong standard time, and it |
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# also seems to indicate that Hong Kong was not using GMT+8 when it was |
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# captured by Japan. |
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# |
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# Image of related sections on newspaper: |
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# * 1941-09-30, Ta Kung Pao (Hong Kong), "Winter Time start tomorrow". |
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# https://i.imgur.com/6waY51Z.jpg (Chinese) |
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# * 1941-09-29, South China Morning Post, Information on sunrise/sunset |
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# time and other things for September 30 and October 1. |
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# https://i.imgur.com/kCiUR78.jpg |
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# * 1942-02-05. The Hong Kong News, Radio Program Guide. |
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# https://i.imgur.com/eVvDMzS.jpg |
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# * 1941-06-14. Hong Kong Daily Press, Daylight Saving from 3am Tomorrow. |
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# https://i.imgur.com/05KkvtC.png |
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# * 1941-09-30, Hong Kong Daily Press, Winter Time Warning. |
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# https://i.imgur.com/dge4kFJ.png |
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# Also, the Liberation day of Hong Kong after WWII which British rule |
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# over the territory resumed was August 30, 1945, which I think should |
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# be the termination date for the use of JST in the territory.... |
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# From Paul Eggert (2018-11-17): |
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# Here are the dates given at |
# Here are the dates given at |
# https://www.hko.gov.hk/gts/time/Summertime.htm |
# http://www.hko.gov.hk/gts/time/Summertime.htm |
# as of 2014-06-19: |
# as of 2009-10-28: |
# Year Period |
# Year Period |
# 1941 15 Jun to 30 Sep |
# 1941 1 Apr to 30 Sep |
# 1942 Whole year |
# 1942 Whole year |
# 1943 Whole year |
# 1943 Whole year |
# 1944 Whole year |
# 1944 Whole year |
Line 672 Zone Asia/Urumqi 5:50:20 - LMT 1928 |
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Line 558 Zone Asia/Urumqi 5:50:20 - LMT 1928 |
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# 1949 3 Apr to 30 Oct |
# 1949 3 Apr to 30 Oct |
# 1950 2 Apr to 29 Oct |
# 1950 2 Apr to 29 Oct |
# 1951 1 Apr to 28 Oct |
# 1951 1 Apr to 28 Oct |
# 1952 6 Apr to 2 Nov |
# 1952 6 Apr to 25 Oct |
# 1953 5 Apr to 1 Nov |
# 1953 5 Apr to 1 Nov |
# 1954 21 Mar to 31 Oct |
# 1954 21 Mar to 31 Oct |
# 1955 20 Mar to 6 Nov |
# 1955 20 Mar to 6 Nov |
Line 701 Zone Asia/Urumqi 5:50:20 - LMT 1928 |
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Line 587 Zone Asia/Urumqi 5:50:20 - LMT 1928 |
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# 1978 Nil |
# 1978 Nil |
# 1979 13 May to 21 Oct |
# 1979 13 May to 21 Oct |
# 1980 to Now Nil |
# 1980 to Now Nil |
# The page does not give times of day for transitions, |
# The page does not give start or end times of day. |
# or dates for the 1942 and 1945 transitions. |
# The page does not give a start date for 1942. |
# The Japanese occupation of Hong Kong began 1941-12-25. |
# The page does not givw an end date for 1945. |
# The Japanese surrender of Hong Kong was signed 1945-09-16; see: |
# The Japanese occupation of Hong Kong began on 1941-12-25. |
# Heaver S. The days after the Pacific war ended: unsettling times |
# The Japanese surrender of Hong Kong was signed 1945-09-15. |
# in Hong Kong. Post Magazine. 2016-06-13. |
# For lack of anything better, use start of those days as the transition times. |
# https://www.scmp.com/magazines/post-magazine/article/1852990/days-after-pacific-war-ended-unsettling-times-hong-kong |
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# For lack of anything better, use start of those days as the |
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# transition times. |
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
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Rule HK 1941 only - Apr 1 3:30 1:00 S |
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Rule HK 1941 only - Sep 30 3:30 0 - |
Rule HK 1946 only - Apr 20 3:30 1:00 S |
Rule HK 1946 only - Apr 20 3:30 1:00 S |
Rule HK 1946 only - Dec 1 3:30 0 - |
Rule HK 1946 only - Dec 1 3:30 0 - |
Rule HK 1947 only - Apr 13 3:30 1:00 S |
Rule HK 1947 only - Apr 13 3:30 1:00 S |
Rule HK 1947 only - Dec 30 3:30 0 - |
Rule HK 1947 only - Dec 30 3:30 0 - |
Rule HK 1948 only - May 2 3:30 1:00 S |
Rule HK 1948 only - May 2 3:30 1:00 S |
Rule HK 1948 1951 - Oct lastSun 3:30 0 - |
Rule HK 1948 1951 - Oct lastSun 3:30 0 - |
Rule HK 1952 1953 - Nov Sun>=1 3:30 0 - |
Rule HK 1952 only - Oct 25 3:30 0 - |
Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S |
Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S |
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Rule HK 1953 only - Nov 1 3:30 0 - |
Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S |
Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S |
Rule HK 1954 only - Oct 31 3:30 0 - |
Rule HK 1954 only - Oct 31 3:30 0 - |
Rule HK 1955 1964 - Nov Sun>=1 3:30 0 - |
Rule HK 1955 1964 - Nov Sun>=1 3:30 0 - |
Line 729 Rule HK 1973 only - Dec 30 3:30 1:00 S |
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Line 615 Rule HK 1973 only - Dec 30 3:30 1:00 S |
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Rule HK 1979 only - May Sun>=8 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 - |
Rule HK 1979 only - Oct Sun>=16 3:30 0 - |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 0:36:42 |
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 |
8:00 - HKT 1941 Jun 15 3:30 |
8:00 HK HK%sT 1941 Dec 25 |
8:00 1:00 HKST 1941 Oct 1 4:00 |
9:00 - JST 1945 Sep 15 |
8:30 - HKT 1941 Dec 25 |
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9:00 - JST 1945 Sep 16 |
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8:00 HK HK%sT |
8:00 HK HK%sT |
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############################################################################### |
############################################################################### |
Line 865 Zone Asia/Taipei 8:06:00 - LMT 1896 Jan |
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Line 749 Zone Asia/Taipei 8:06:00 - LMT 1896 Jan |
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8:00 Taiwan C%sT |
8:00 Taiwan C%sT |
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# Macau (Macao, Aomen) |
# Macau (Macao, Aomen) |
# |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
# From P Chan (2018-05-10): |
Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 D |
# * LegisMac |
Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 S |
# http://legismac.safp.gov.mo/legismac/descqry/Descqry.jsf?lang=pt |
Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 D |
# A database for searching titles of legal documents of Macau in |
Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 D |
# Chinese and Portuguese. The term "HORRIO DE VERO" can be used for |
Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 D |
# searching decrees about summer time. |
Rule Macau 1965 only - Oct 31 0:00 0 S |
# * Archives of Macao |
Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 D |
# http://www.archives.gov.mo/en/bo/ |
Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 S |
# It contains images of old official gazettes. |
Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 D |
# * The Macao Meteorological and Geophysical Bureau have a page listing the |
Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 S |
# summer time history. But it is not complete and has some mistakes. |
Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 S |
# http://www.smg.gov.mo/smg/geophysics/e_t_Summer%20Time.htm |
Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 D |
# Macau adopted GMT+8 on 30 Oct 1904 to follow Hong Kong. Clocks were |
Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 D |
# advanced by 25 minutes and 50 seconds. Which means the LMT used was |
Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 S |
# +7:34:10. As stated in the "Portaria No. 204" dated 21 October 1904 |
# See Europe/Lisbon for info about the 1912 transition. |
# and published in the Official Gazette on 29 October 1904. |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
# http://igallery.icm.gov.mo/Images/Archives/BO/MO_AH_PUB_BO_1904_10/MO_AH_PUB_BO_1904_10_00025_Grey.JPG |
Zone Asia/Macau 7:34:20 - LMT 1911 Dec 31 16:00u |
# |
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# Therefore the 1911 decree of Portugal did not change time in Macau. |
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# |
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# From LegisMac, here is a list of decrees that changed the time ... |
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# [Decree Gazette-no. date; titles omitted in this quotation] |
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# DIL 732 BOCM 51 1941.12.20 |
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# DIL 764 BOCM 9S 1942.04.30 |
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# DIL 781 BOCM 21 1942.10.10 |
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# PT 3434 BOCM 8S 1943.04.17 |
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# PT 3504 BOCM 20 1943.09.25 |
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# PT 3843 BOCM 39 1945.09.29 |
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# PT 3961 BOCM 17 1946.04.27 |
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# PT 4026 BOCM 39 1946.09.28 |
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# PT 4153 BOCM 16 1947.04.10 |
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# PT 4271 BOCM 48 1947.11.29 |
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# PT 4374 BOCM 18 1948.05.01 |
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# PT 4465 BOCM 44 1948.10.30 |
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# PT 4590 BOCM 14 1949.04.02 |
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# PT 4666 BOCM 44 1949.10.29 |
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# PT 4771 BOCM 12 1950.03.25 |
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# PT 4838 BOCM 43 1950.10.28 |
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# PT 4946 BOCM 12 1951.03.24 |
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# PT 5025 BO 43 1951.10.27 |
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# PT 5149 BO 14 1952.04.05 |
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# PT 5251 BO 43 1952.10.25 |
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# PT 5366 BO 13 1953.03.28 |
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# PT 5444 BO 44 1953.10.31 |
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# PT 5540 BO 12 1954.03.20 |
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# PT 5589 BO 44 1954.10.30 |
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# PT 5676 BO 12 1955.03.19 |
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# PT 5739 BO 45 1955.11.05 |
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# PT 5823 BO 11 1956.03.17 |
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# PT 5891 BO 44 1956.11.03 |
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# PT 5981 BO 12 1957.03.23 |
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# PT 6064 BO 43 1957.10.26 |
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# PT 6172 BO 12 1958.03.22 |
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# PT 6243 BO 43 1958.10.25 |
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# PT 6341 BO 12 1959.03.21 |
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# PT 6411 BO 43 1959.10.24 |
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# PT 6514 BO 11 1960.03.12 |
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# PT 6584 BO 44 1960.10.29 |
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# PT 6721 BO 10 1961.03.11 |
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# PT 6815 BO 43 1961.10.28 |
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# PT 6947 BO 10 1962.03.10 |
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# PT 7080 BO 43 1962.10.27 |
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# PT 7218 BO 12 1963.03.23 |
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# PT 7340 BO 43 1963.10.26 |
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# PT 7491 BO 11 1964.03.14 |
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# PT 7664 BO 43 1964.10.24 |
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# PT 7846 BO 15 1965.04.10 |
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# PT 7979 BO 42 1965.10.16 |
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# PT 8146 BO 15 1966.04.09 |
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# PT 8252 BO 41 1966.10.08 |
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# PT 8429 BO 15 1967.04.15 |
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# PT 8540 BO 41 1967.10.14 |
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# PT 8735 BO 15 1968.04.13 |
|
# PT 8860 BO 41 1968.10.12 |
|
# PT 9035 BO 16 1969.04.19 |
|
# PT 9156 BO 42 1969.10.18 |
|
# PT 9328 BO 15 1970.04.11 |
|
# PT 9418 BO 41 1970.10.10 |
|
# PT 9587 BO 14 1971.04.03 |
|
# PT 9702 BO 41 1971.10.09 |
|
# PT 38-A/72 BO 14 1972.04.01 |
|
# PT 126-A/72 BO 41 1972.10.07 |
|
# PT 61/73 BO 14 1973.04.07 |
|
# PT 182/73 BO 40 1973.10.06 |
|
# PT 282/73 BO 51 1973.12.22 |
|
# PT 177/74 BO 41 1974.10.12 |
|
# PT 51/75 BO 15 1975.04.12 |
|
# PT 173/75 BO 41 1975.10.11 |
|
# PT 67/76/M BO 14 1976.04.03 |
|
# PT 169/76/M BO 41 1976.10.09 |
|
# PT 78/79/M BO 19 1979.05.12 |
|
# PT 166/79/M BO 42 1979.10.20 |
|
# Note that DIL 732 does not belong to "HORRIO DE VERO" according to |
|
# LegisMac.... Note that between 1942 and 1945, the time switched |
|
# between GMT+9 and GMT+10. Also in 1965 and 1965 the DST ended at 2:30am. |
|
|
|
# From Paul Eggert (2018-05-10): |
|
# The 1904 decree says that Macau changed from the meridian of |
|
# Fortaleza do Monte, presumably the basis for the 7:34:10 for LMT. |
|
|
|
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
|
Rule Macau 1942 1943 - Apr 30 23:00 1:00 - |
|
Rule Macau 1942 only - Nov 17 23:00 0 - |
|
Rule Macau 1943 only - Sep 30 23:00 0 S |
|
Rule Macau 1946 only - Apr 30 23:00s 1:00 D |
|
Rule Macau 1946 only - Sep 30 23:00s 0 S |
|
Rule Macau 1947 only - Apr 19 23:00s 1:00 D |
|
Rule Macau 1947 only - Nov 30 23:00s 0 S |
|
Rule Macau 1948 only - May 2 23:00s 1:00 D |
|
Rule Macau 1948 only - Oct 31 23:00s 0 S |
|
Rule Macau 1949 1950 - Apr Sat>=1 23:00s 1:00 D |
|
Rule Macau 1949 1950 - Oct lastSat 23:00s 0 S |
|
Rule Macau 1951 only - Mar 31 23:00s 1:00 D |
|
Rule Macau 1951 only - Oct 28 23:00s 0 S |
|
Rule Macau 1952 1953 - Apr Sat>=1 23:00s 1:00 D |
|
Rule Macau 1952 only - Nov 1 23:00s 0 S |
|
Rule Macau 1953 1954 - Oct lastSat 23:00s 0 S |
|
Rule Macau 1954 1956 - Mar Sat>=17 23:00s 1:00 D |
|
Rule Macau 1955 only - Nov 5 23:00s 0 S |
|
Rule Macau 1956 1964 - Nov Sun>=1 03:30 0 S |
|
Rule Macau 1957 1964 - Mar Sun>=18 03:30 1:00 D |
|
Rule Macau 1965 1973 - Apr Sun>=16 03:30 1:00 D |
|
Rule Macau 1965 1966 - Oct Sun>=16 02:30 0 S |
|
Rule Macau 1967 1976 - Oct Sun>=16 03:30 0 S |
|
Rule Macau 1973 only - Dec 30 03:30 1:00 D |
|
Rule Macau 1975 1976 - Apr Sun>=16 03:30 1:00 D |
|
Rule Macau 1979 only - May 13 03:30 1:00 D |
|
Rule Macau 1979 only - Oct Sun>=16 03:30 0 S |
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
|
Zone Asia/Macau 7:34:10 - LMT 1904 Oct 30 |
|
8:00 - CST 1941 Dec 21 23:00 |
|
9:00 Macau +09/+10 1945 Sep 30 24:00 |
|
8:00 Macau C%sT |
8:00 Macau C%sT |
|
|
|
|
Line 1129 Zone Asia/Dili 8:22:20 - LMT 1912 Jan 1 |
|
Line 897 Zone Asia/Dili 8:22:20 - LMT 1912 Jan 1 |
|
|
|
# India |
# India |
|
|
# British astronomer Henry Park Hollis disliked India Standard Time's offset: |
|
# "A new time system has been proposed for India, Further India, and Burmah. |
|
# The scheme suggested is that the times of the meridians 5½ and 6½ hours |
|
# east of Greenwich should be adopted in these territories. No reason is |
|
# given why hourly meridians five hours and six hours east should not be |
|
# chosen; a plan which would bring the time of India into harmony with |
|
# that of almost the whole of the civilised world." |
|
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc. |
|
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382 |
|
|
|
# From Ian P. Beacock, in "A brief history of (modern) time", The Atlantic |
# From Ian P. Beacock, in "A brief history of (modern) time", The Atlantic |
# https://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/ |
# https://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/ |
# (2015-12-22): |
# (2015-12-22): |
Line 1309 Zone Asia/Jayapura 9:22:48 - LMT 1932 No |
|
Line 1067 Zone Asia/Jayapura 9:22:48 - LMT 1932 No |
|
# leap year calculation involved. There has never been any serious |
# leap year calculation involved. There has never been any serious |
# plan to change that law.... |
# plan to change that law.... |
# |
# |
# From Paul Eggert (2018-11-30): |
# From Paul Eggert (2006-03-22): |
# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter. |
# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter. |
# I used the following code in GNU Emacs 26.1 to generate the "Rule Iran" |
# I used Ed Reingold's cal-persia in GNU Emacs 21.2 to check Persian dates, |
# lines from 2008 through 2087. Emacs 26.1 uses Ed Reingold's |
# stopping after 2037 when 32-bit time_t's overflow. |
# cal-persia implementation of Birashk's approximation, which in the |
# That cal-persia used Birashk's approximation, which disagrees with the solar |
# 2008-2087 range disagrees with the the astronomical Persian calendar |
# calendar predictions for the year 2025, so I corrected those dates by hand. |
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058), |
|
# so the following code special-case those years. See Table 15.1, page 264, of: |
|
# Edward M. Reingold and Nachum Dershowitz, Calendrical Calculations: |
|
# The Ultimate Edition, Cambridge University Press (2018). |
|
# https://www.cambridge.org/fr/academic/subjects/computer-science/computing-general-interest/calendrical-calculations-ultimate-edition-4th-edition |
|
# Page 258, footnote 2, of this book says there is some dispute over what will |
|
# happen in 2091 (and some other years after that), so this code |
|
# stops in 2087, as 2088 and 2089 agree with the "max" rule below. |
|
# (cl-loop |
|
# initially (require 'cal-persia) |
|
# with first-persian-year = 1387 |
|
# with last-persian-year = 1466 |
|
# ;; Exceptional years in the above range, |
|
# ;; from Reingold & Dershowitz Table 15.1, page 264: |
|
# with exceptional-persian-years = '(1404 1437) |
|
# with range-start = nil |
|
# for persian-year from first-persian-year to last-persian-year |
|
# do |
|
# (let* |
|
# ((exceptional-year-offset |
|
# (if (member persian-year exceptional-persian-years) 1 0)) |
|
# (beg-dst-absolute |
|
# (+ (calendar-persian-to-absolute (list 1 1 persian-year)) |
|
# exceptional-year-offset)) |
|
# (end-dst-absolute |
|
# (+ (calendar-persian-to-absolute (list 6 30 persian-year)) |
|
# exceptional-year-offset)) |
|
# (next-year-beg-dst-absolute |
|
# (+ (calendar-persian-to-absolute (list 1 1 (1+ persian-year))) |
|
# (if (member (1+ persian-year) exceptional-persian-years) 1 0))) |
|
# (beg-dst (calendar-gregorian-from-absolute beg-dst-absolute)) |
|
# (end-dst (calendar-gregorian-from-absolute end-dst-absolute)) |
|
# (next-year-beg-dst (calendar-gregorian-from-absolute |
|
# next-year-beg-dst-absolute)) |
|
# (year (calendar-extract-year beg-dst)) |
|
# (range-end (if range-start year "only"))) |
|
# (setq range-start (or range-start year)) |
|
# (when (or (/= (calendar-extract-day beg-dst) |
|
# (calendar-extract-day next-year-beg-dst)) |
|
# (= persian-year last-persian-year)) |
|
# (insert |
|
# (format |
|
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t1:00\t-\n" |
|
# range-start range-end |
|
# (calendar-month-name (calendar-extract-month beg-dst) t) |
|
# (calendar-extract-day beg-dst))) |
|
# (insert |
|
# (format |
|
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t0\t-\n" |
|
# range-start range-end |
|
# (calendar-month-name (calendar-extract-month end-dst) t) |
|
# (calendar-extract-day end-dst))) |
|
# (setq range-start nil)))) |
|
# |
# |
# From Oscar van Vlijmen (2005-03-30), writing about future |
# From Oscar van Vlijmen (2005-03-30), writing about future |
# discrepancies between cal-persia and the Iranian calendar: |
# discrepancies between cal-persia and the Iranian calendar: |
Line 1402 Zone Asia/Jayapura 9:22:48 - LMT 1932 No |
|
Line 1107 Zone Asia/Jayapura 9:22:48 - LMT 1932 No |
|
# thirtieth day of Shahrivar. |
# thirtieth day of Shahrivar. |
# |
# |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
Rule Iran 1978 1980 - Mar 20 24:00 1:00 - |
Rule Iran 1978 1980 - Mar 21 0:00 1:00 - |
Rule Iran 1978 only - Oct 20 24:00 0 - |
Rule Iran 1978 only - Oct 21 0:00 0 - |
Rule Iran 1979 only - Sep 18 24:00 0 - |
Rule Iran 1979 only - Sep 19 0:00 0 - |
Rule Iran 1980 only - Sep 22 24:00 0 - |
Rule Iran 1980 only - Sep 23 0:00 0 - |
Rule Iran 1991 only - May 2 24:00 1:00 - |
Rule Iran 1991 only - May 3 0:00 1:00 - |
Rule Iran 1992 1995 - Mar 21 24:00 1:00 - |
Rule Iran 1992 1995 - Mar 22 0:00 1:00 - |
Rule Iran 1991 1995 - Sep 21 24:00 0 - |
Rule Iran 1991 1995 - Sep 22 0:00 0 - |
Rule Iran 1996 only - Mar 20 24:00 1:00 - |
Rule Iran 1996 only - Mar 21 0:00 1:00 - |
Rule Iran 1996 only - Sep 20 24:00 0 - |
Rule Iran 1996 only - Sep 21 0:00 0 - |
Rule Iran 1997 1999 - Mar 21 24:00 1:00 - |
Rule Iran 1997 1999 - Mar 22 0:00 1:00 - |
Rule Iran 1997 1999 - Sep 21 24:00 0 - |
Rule Iran 1997 1999 - Sep 22 0:00 0 - |
Rule Iran 2000 only - Mar 20 24:00 1:00 - |
Rule Iran 2000 only - Mar 21 0:00 1:00 - |
Rule Iran 2000 only - Sep 20 24:00 0 - |
Rule Iran 2000 only - Sep 21 0:00 0 - |
Rule Iran 2001 2003 - Mar 21 24:00 1:00 - |
Rule Iran 2001 2003 - Mar 22 0:00 1:00 - |
Rule Iran 2001 2003 - Sep 21 24:00 0 - |
Rule Iran 2001 2003 - Sep 22 0:00 0 - |
Rule Iran 2004 only - Mar 20 24:00 1:00 - |
Rule Iran 2004 only - Mar 21 0:00 1:00 - |
Rule Iran 2004 only - Sep 20 24:00 0 - |
Rule Iran 2004 only - Sep 21 0:00 0 - |
Rule Iran 2005 only - Mar 21 24:00 1:00 - |
Rule Iran 2005 only - Mar 22 0:00 1:00 - |
Rule Iran 2005 only - Sep 21 24:00 0 - |
Rule Iran 2005 only - Sep 22 0:00 0 - |
Rule Iran 2008 only - Mar 20 24:00 1:00 - |
Rule Iran 2008 only - Mar 21 0:00 1:00 - |
Rule Iran 2008 only - Sep 20 24:00 0 - |
Rule Iran 2008 only - Sep 21 0:00 0 - |
Rule Iran 2009 2011 - Mar 21 24:00 1:00 - |
Rule Iran 2009 2011 - Mar 22 0:00 1:00 - |
Rule Iran 2009 2011 - Sep 21 24:00 0 - |
Rule Iran 2009 2011 - Sep 22 0:00 0 - |
Rule Iran 2012 only - Mar 20 24:00 1:00 - |
Rule Iran 2012 only - Mar 21 0:00 1:00 - |
Rule Iran 2012 only - Sep 20 24:00 0 - |
Rule Iran 2012 only - Sep 21 0:00 0 - |
Rule Iran 2013 2015 - Mar 21 24:00 1:00 - |
Rule Iran 2013 2015 - Mar 22 0:00 1:00 - |
Rule Iran 2013 2015 - Sep 21 24:00 0 - |
Rule Iran 2013 2015 - Sep 22 0:00 0 - |
Rule Iran 2016 only - Mar 20 24:00 1:00 - |
Rule Iran 2016 only - Mar 21 0:00 1:00 - |
Rule Iran 2016 only - Sep 20 24:00 0 - |
Rule Iran 2016 only - Sep 21 0:00 0 - |
Rule Iran 2017 2019 - Mar 21 24:00 1:00 - |
Rule Iran 2017 2019 - Mar 22 0:00 1:00 - |
Rule Iran 2017 2019 - Sep 21 24:00 0 - |
Rule Iran 2017 2019 - Sep 22 0:00 0 - |
Rule Iran 2020 only - Mar 20 24:00 1:00 - |
Rule Iran 2020 only - Mar 21 0:00 1:00 - |
Rule Iran 2020 only - Sep 20 24:00 0 - |
Rule Iran 2020 only - Sep 21 0:00 0 - |
Rule Iran 2021 2023 - Mar 21 24:00 1:00 - |
Rule Iran 2021 2023 - Mar 22 0:00 1:00 - |
Rule Iran 2021 2023 - Sep 21 24:00 0 - |
Rule Iran 2021 2023 - Sep 22 0:00 0 - |
Rule Iran 2024 only - Mar 20 24:00 1:00 - |
Rule Iran 2024 only - Mar 21 0:00 1:00 - |
Rule Iran 2024 only - Sep 20 24:00 0 - |
Rule Iran 2024 only - Sep 21 0:00 0 - |
Rule Iran 2025 2027 - Mar 21 24:00 1:00 - |
Rule Iran 2025 2027 - Mar 22 0:00 1:00 - |
Rule Iran 2025 2027 - Sep 21 24:00 0 - |
Rule Iran 2025 2027 - Sep 22 0:00 0 - |
Rule Iran 2028 2029 - Mar 20 24:00 1:00 - |
Rule Iran 2028 2029 - Mar 21 0:00 1:00 - |
Rule Iran 2028 2029 - Sep 20 24:00 0 - |
Rule Iran 2028 2029 - Sep 21 0:00 0 - |
Rule Iran 2030 2031 - Mar 21 24:00 1:00 - |
Rule Iran 2030 2031 - Mar 22 0:00 1:00 - |
Rule Iran 2030 2031 - Sep 21 24:00 0 - |
Rule Iran 2030 2031 - Sep 22 0:00 0 - |
Rule Iran 2032 2033 - Mar 20 24:00 1:00 - |
Rule Iran 2032 2033 - Mar 21 0:00 1:00 - |
Rule Iran 2032 2033 - Sep 20 24:00 0 - |
Rule Iran 2032 2033 - Sep 21 0:00 0 - |
Rule Iran 2034 2035 - Mar 21 24:00 1:00 - |
Rule Iran 2034 2035 - Mar 22 0:00 1:00 - |
Rule Iran 2034 2035 - Sep 21 24:00 0 - |
Rule Iran 2034 2035 - Sep 22 0:00 0 - |
Rule Iran 2036 2037 - Mar 20 24:00 1:00 - |
# |
Rule Iran 2036 2037 - Sep 20 24:00 0 - |
# The following rules are approximations starting in the year 2038. |
Rule Iran 2038 2039 - Mar 21 24:00 1:00 - |
# These are the best post-2037 approximations available, given the |
Rule Iran 2038 2039 - Sep 21 24:00 0 - |
# restrictions of a single rule using a Gregorian-based data format. |
Rule Iran 2040 2041 - Mar 20 24:00 1:00 - |
|
Rule Iran 2040 2041 - Sep 20 24:00 0 - |
|
Rule Iran 2042 2043 - Mar 21 24:00 1:00 - |
|
Rule Iran 2042 2043 - Sep 21 24:00 0 - |
|
Rule Iran 2044 2045 - Mar 20 24:00 1:00 - |
|
Rule Iran 2044 2045 - Sep 20 24:00 0 - |
|
Rule Iran 2046 2047 - Mar 21 24:00 1:00 - |
|
Rule Iran 2046 2047 - Sep 21 24:00 0 - |
|
Rule Iran 2048 2049 - Mar 20 24:00 1:00 - |
|
Rule Iran 2048 2049 - Sep 20 24:00 0 - |
|
Rule Iran 2050 2051 - Mar 21 24:00 1:00 - |
|
Rule Iran 2050 2051 - Sep 21 24:00 0 - |
|
Rule Iran 2052 2053 - Mar 20 24:00 1:00 - |
|
Rule Iran 2052 2053 - Sep 20 24:00 0 - |
|
Rule Iran 2054 2055 - Mar 21 24:00 1:00 - |
|
Rule Iran 2054 2055 - Sep 21 24:00 0 - |
|
Rule Iran 2056 2057 - Mar 20 24:00 1:00 - |
|
Rule Iran 2056 2057 - Sep 20 24:00 0 - |
|
Rule Iran 2058 2059 - Mar 21 24:00 1:00 - |
|
Rule Iran 2058 2059 - Sep 21 24:00 0 - |
|
Rule Iran 2060 2062 - Mar 20 24:00 1:00 - |
|
Rule Iran 2060 2062 - Sep 20 24:00 0 - |
|
Rule Iran 2063 only - Mar 21 24:00 1:00 - |
|
Rule Iran 2063 only - Sep 21 24:00 0 - |
|
Rule Iran 2064 2066 - Mar 20 24:00 1:00 - |
|
Rule Iran 2064 2066 - Sep 20 24:00 0 - |
|
Rule Iran 2067 only - Mar 21 24:00 1:00 - |
|
Rule Iran 2067 only - Sep 21 24:00 0 - |
|
Rule Iran 2068 2070 - Mar 20 24:00 1:00 - |
|
Rule Iran 2068 2070 - Sep 20 24:00 0 - |
|
Rule Iran 2071 only - Mar 21 24:00 1:00 - |
|
Rule Iran 2071 only - Sep 21 24:00 0 - |
|
Rule Iran 2072 2074 - Mar 20 24:00 1:00 - |
|
Rule Iran 2072 2074 - Sep 20 24:00 0 - |
|
Rule Iran 2075 only - Mar 21 24:00 1:00 - |
|
Rule Iran 2075 only - Sep 21 24:00 0 - |
|
Rule Iran 2076 2078 - Mar 20 24:00 1:00 - |
|
Rule Iran 2076 2078 - Sep 20 24:00 0 - |
|
Rule Iran 2079 only - Mar 21 24:00 1:00 - |
|
Rule Iran 2079 only - Sep 21 24:00 0 - |
|
Rule Iran 2080 2082 - Mar 20 24:00 1:00 - |
|
Rule Iran 2080 2082 - Sep 20 24:00 0 - |
|
Rule Iran 2083 only - Mar 21 24:00 1:00 - |
|
Rule Iran 2083 only - Sep 21 24:00 0 - |
|
Rule Iran 2084 2086 - Mar 20 24:00 1:00 - |
|
Rule Iran 2084 2086 - Sep 20 24:00 0 - |
|
Rule Iran 2087 only - Mar 21 24:00 1:00 - |
|
Rule Iran 2087 only - Sep 21 24:00 0 - |
|
# |
|
# The following rules are approximations starting in the year 2088. |
|
# These are the best post-2088 approximations available, given the |
|
# restrictions of a single rule using ordinary Gregorian dates. |
|
# At some point this table will need to be extended, though quite |
# At some point this table will need to be extended, though quite |
# possibly Iran will change the rules first. |
# possibly Iran will change the rules first. |
Rule Iran 2088 max - Mar 20 24:00 1:00 - |
Rule Iran 2036 max - Mar 21 0:00 1:00 - |
Rule Iran 2088 max - Sep 20 24:00 0 - |
Rule Iran 2036 max - Sep 21 0:00 0 - |
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
Zone Asia/Tehran 3:25:44 - LMT 1916 |
Zone Asia/Tehran 3:25:44 - LMT 1916 |
Line 1818 Zone Asia/Jerusalem 2:20:54 - LMT 1880 |
|
Line 1471 Zone Asia/Jerusalem 2:20:54 - LMT 1880 |
|
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00719500331039.htm |
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00719500331039.htm |
# ... In summary, it is written as follows. From 24:00 on the first Saturday |
# ... In summary, it is written as follows. From 24:00 on the first Saturday |
# in May, until 0:00 on the day after the second Saturday in September. |
# in May, until 0:00 on the day after the second Saturday in September. |
|
|
# From Phake Nick (2018-09-27): |
|
# [T]he webpage authored by National Astronomical Observatory of Japan |
|
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EF.html |
|
# ... mentioned that using Showa 23 (year 1948) as example, 13pm of September |
|
# 11 in summer time will equal to 0am of September 12 in standard time. |
|
# It cited a document issued by the Liaison Office which briefly existed |
|
# during the postwar period of Japan, where the detail on implementation |
|
# of the summer time is described in the document. |
|
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EFB2C6BBFEB9EFA4CEBCC2BBDCA4CBA4C4A4A4A4C6.pdf |
|
# The text in the document do instruct a fall back to occur at |
|
# September 11, 13pm in summer time, while ordinary citizens can |
|
# change the clock before they sleep. |
|
# |
|
# From Paul Eggert (2018-09-27): |
|
# This instruction is equivalent to "Sat>=8 25:00", so use that. zic treats |
|
# it like "Sun>=9 01:00", which is not quite the same but is the best we can |
|
# do in any POSIX or C platform. The "25:00" assumes zic from 2007 or later, |
|
# which should be safe now. |
|
|
|
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
Rule Japan 1948 only - May Sat>=1 24:00 1:00 D |
Rule Japan 1948 only - May Sat>=1 24:00 1:00 D |
Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S |
Rule Japan 1948 1951 - Sep Sun>=9 0:00 0 S |
Rule Japan 1949 only - Apr Sat>=1 24:00 1:00 D |
Rule Japan 1949 only - Apr Sat>=1 24:00 1:00 D |
Rule Japan 1950 1951 - May Sat>=1 24:00 1:00 D |
Rule Japan 1950 1951 - May Sat>=1 24:00 1:00 D |
|
|
Line 1878 Rule Japan 1950 1951 - May Sat>=1 24:00 |
|
Line 1511 Rule Japan 1950 1951 - May Sat>=1 24:00 |
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u |
Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u |
9:00 Japan J%sT |
9:00 Japan J%sT |
# Since 1938, all Japanese possessions have been like Asia/Tokyo, |
# Since 1938, all Japanese possessions have been like Asia/Tokyo. |
# except that Truk (Chuuk), Ponape (Pohnpei), and Jaluit (Kosrae) did not |
|
# switch from +10 to +09 until 1941-04-01; see the 'australasia' file. |
|
|
|
# Jordan |
# Jordan |
# |
# |
Line 2170 Zone Asia/Amman 2:23:44 - LMT 1931 |
|
Line 1801 Zone Asia/Amman 2:23:44 - LMT 1931 |
|
# and in Byalokoz) lists Ural river (plus 10 versts on its left bank) in |
# and in Byalokoz) lists Ural river (plus 10 versts on its left bank) in |
# the third time belt (before 1930 this means +03). |
# the third time belt (before 1930 this means +03). |
|
|
# From Alexander Konzurovski (2018-12-20): |
# From Paul Eggert (2016-12-06): |
# Qyzyolrda Region (Asia/Qyzylorda) is changing its time zone from |
# The tables below reflect Golosunov's remarks, with exceptions as noted. |
# UTC+6 to UTC+5 effective December 21st, 2018. The legal document is |
|
# located here: http://adilet.zan.kz/rus/docs/P1800000817 (russian language). |
|
|
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
# |
# |
Line 2187 Zone Asia/Almaty 5:07:48 - LMT 1924 May |
|
Line 1816 Zone Asia/Almaty 5:07:48 - LMT 1924 May |
|
6:00 RussiaAsia +06/+07 2004 Oct 31 2:00s |
6:00 RussiaAsia +06/+07 2004 Oct 31 2:00s |
6:00 - +06 |
6:00 - +06 |
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-KZY) |
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-KZY) |
|
# This currently includes Qostanay (aka Kostanay, Kustanay) (KZ-KUS); |
|
# see comments below. |
Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2 |
Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2 |
4:00 - +04 1930 Jun 21 |
4:00 - +04 1930 Jun 21 |
5:00 - +05 1981 Apr 1 |
5:00 - +05 1981 Apr 1 |
Line 2197 Zone Asia/Qyzylorda 4:21:52 - LMT 1924 M |
|
Line 1828 Zone Asia/Qyzylorda 4:21:52 - LMT 1924 M |
|
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s |
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s |
6:00 RussiaAsia +06/+07 1992 Mar 29 2:00s |
6:00 RussiaAsia +06/+07 1992 Mar 29 2:00s |
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s |
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s |
6:00 - +06 2018 Dec 21 0:00 |
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5:00 - +05 |
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# |
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# Qostanay (aka Kostanay, Kustanay) (KZ-KUS) |
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# The 1991/2 rules are unclear partly because of the 1997 Turgai |
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# reorganization. |
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Zone Asia/Qostanay 4:14:28 - LMT 1924 May 2 |
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4:00 - +04 1930 Jun 21 |
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5:00 - +05 1981 Apr 1 |
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5:00 1:00 +06 1981 Oct 1 |
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6:00 - +06 1982 Apr 1 |
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5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s |
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4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s |
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5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s |
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6:00 - +06 |
6:00 - +06 |
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# The following zone is like Asia/Qyzylorda except for being one |
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# hour earlier from 1991-09-29 to 1992-03-29. The 1991/2 rules for |
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# Qostanay are unclear partly because of the 1997 Turgai |
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# reorganization, so this zone is commented out for now. |
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#Zone Asia/Qostanay 4:14:20 - LMT 1924 May 2 |
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# 4:00 - +04 1930 Jun 21 |
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# 5:00 - +05 1981 Apr 1 |
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# 5:00 1:00 +06 1981 Oct 1 |
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# 6:00 - +06 1982 Apr 1 |
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# 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s |
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# 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s |
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# 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s |
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# 6:00 - +06 |
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# |
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT) |
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT) |
Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2 |
Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2 |
4:00 - +04 1930 Jun 21 |
4:00 - +04 1930 Jun 21 |
Line 2225 Zone Asia/Aqtobe 3:48:40 - LMT 1924 May |
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Line 1855 Zone Asia/Aqtobe 3:48:40 - LMT 1924 May |
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5:00 - +05 |
5:00 - +05 |
# Mangghystaū (KZ-MAN) |
# Mangghystaū (KZ-MAN) |
# Aqtau was not founded until 1963, but it represents an inhabited region, |
# Aqtau was not founded until 1963, but it represents an inhabited region, |
# so include timestamps before 1963. |
# so include time stamps before 1963. |
Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2 |
Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2 |
4:00 - +04 1930 Jun 21 |
4:00 - +04 1930 Jun 21 |
5:00 - +05 1981 Oct 1 |
5:00 - +05 1981 Oct 1 |
Line 2306 Zone Asia/Bishkek 4:58:24 - LMT 1924 May |
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Line 1936 Zone Asia/Bishkek 4:58:24 - LMT 1924 May |
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# started at June 1 in that year. For another example, the article in |
# 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. |
# 1988 said that DST started at 2:00 AM in that year. |
|
|
# From Phake Nick (2018-10-27): |
|
# 1. According to official announcement from Korean government, the DST end |
|
# date in South Korea should be |
|
# 1955-09-08 without specifying time |
|
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027977557 |
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# 1956-09-29 without specifying time |
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# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027978341 |
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# 1957-09-21 24 o'clock |
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# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027979690#3 |
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# 1958-09-20 24 o'clock |
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# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027981189 |
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# 1959-09-19 24 o'clock |
|
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027982974#2 |
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# 1960-09-17 24 o'clock |
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# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0028044104 |
|
# ... |
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# 2.... https://namu.wiki/w/ ïÉüö±¼êµ%20Øî÷ë... [says] |
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# when Korea was using GMT+8:30 as standard time, the international |
|
# aviation/marine/meteorological industry in the country refused to |
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# follow and continued to use GMT+9:00 for interoperability. |
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|
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|
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
# 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 - Jun 1 0:00 1:00 D |
Rule ROK 1948 only - Sep 12 24:00 0 S |
Rule ROK 1948 only - Sep 13 0:00 0 S |
Rule ROK 1949 only - Apr 3 0:00 1:00 D |
Rule ROK 1949 only - Apr 3 0:00 1:00 D |
Rule ROK 1949 1951 - Sep Sat>=7 24:00 0 S |
Rule ROK 1949 1951 - Sep Sun>=8 0:00 0 S |
Rule ROK 1950 only - Apr 1 0:00 1:00 D |
Rule ROK 1950 only - Apr 1 0:00 1:00 D |
Rule ROK 1951 only - May 6 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 - May 5 0:00 1:00 D |
Rule ROK 1955 only - Sep 8 24:00 0 S |
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 - May 20 0:00 1:00 D |
Rule ROK 1956 only - Sep 29 24:00 0 S |
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 - May Sun>=1 0:00 1:00 D |
Rule ROK 1957 1960 - Sep Sat>=17 24:00 0 S |
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 - May Sun>=8 2:00 1:00 D |
Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S |
Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S |
|
|
# From Paul Eggert (2016-08-23): |
# From Paul Eggert (2016-08-23): |
# The Korean Wikipedia entry gives the following sources for UT offsets: |
# The Korean Wikipedia entry gives the following sources for UT offsets: |
Line 2375 Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 |
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Line 1983 Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 |
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# There is no common English-language abbreviation for this time zone. |
# There is no common English-language abbreviation for this time zone. |
# Use KST, as that's what we already use for 1954-1961 in ROK. |
# Use KST, as that's what we already use for 1954-1961 in ROK. |
|
|
# From Kang Seonghoon (2018-04-29): |
|
# North Korea will revert its time zone from UTC+8:30 (PYT; Pyongyang |
|
# Time) back to UTC+9 (KST; Korea Standard Time). |
|
# |
|
# From Seo Sanghyeon (2018-04-30): |
|
# Rodong Sinmun 2018-04-30 announced Pyongyang Time transition plan. |
|
# https://www.nknews.org/kcna/wp-content/uploads/sites/5/2018/04/rodong-2018-04-30.pdf |
|
# ... the transition date is 2018-05-05 ... Citation should be Decree |
|
# No. 2232 of April 30, 2018, of the Presidium of the Supreme People's |
|
# Assembly, as published in Rodong Sinmun. |
|
# From Tim Parenti (2018-04-29): |
|
# It appears to be the front page story at the top in the right-most column. |
|
# |
|
# From Paul Eggert (2018-05-04): |
|
# The BBC reported that the transition was from 23:30 to 24:00 today. |
|
# https://www.bbc.com/news/world-asia-44010705 |
|
|
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# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
Zone Asia/Seoul 8:27:52 - LMT 1908 Apr 1 |
Zone Asia/Seoul 8:27:52 - LMT 1908 Apr 1 |
8:30 - KST 1912 Jan 1 |
8:30 - KST 1912 Jan 1 |
Line 2403 Zone Asia/Pyongyang 8:23:00 - LMT 1908 A |
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Line 1994 Zone Asia/Pyongyang 8:23:00 - LMT 1908 A |
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8:30 - KST 1912 Jan 1 |
8:30 - KST 1912 Jan 1 |
9:00 - JST 1945 Aug 24 |
9:00 - JST 1945 Aug 24 |
9:00 - KST 2015 Aug 15 00:00 |
9:00 - KST 2015 Aug 15 00:00 |
8:30 - KST 2018 May 4 23:30 |
8:30 - KST |
9:00 - KST |
|
|
|
############################################################################### |
############################################################################### |
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|
Line 3068 Zone Asia/Karachi 4:28:12 - LMT 1907 |
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Line 2658 Zone Asia/Karachi 4:28:12 - LMT 1907 |
|
# From Sharef Mustafa (2018-03-16): |
# From Sharef Mustafa (2018-03-16): |
# Palestine summer time will start on Mar 24th 2018 by advancing the |
# Palestine summer time will start on Mar 24th 2018 by advancing the |
# clock by 60 minutes as per Palestinian cabinet decision published on |
# clock by 60 minutes as per Palestinian cabinet decision published on |
# the official website, though the decree did not specify the exact |
# the offical website, though the decree did not specify the exact |
# time of the time shift. |
# time of the time shift. |
# http://www.palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e7a42ab7-ee23-435a-b9c8-a4f7e81f3817 |
# http://www.palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e7a42ab7-ee23-435a-b9c8-a4f7e81f3817 |
# |
# |
Line 3132 Zone Asia/Hebron 2:20:23 - LMT 1900 Oct |
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Line 2722 Zone Asia/Hebron 2:20:23 - LMT 1900 Oct |
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# no information |
# no information |
|
|
# Philippines |
# Philippines |
|
|
# From Paul Eggert (2018-11-18): |
|
# The Spanish initially used American (west-of-Greenwich) time. |
|
# It is unknown what time Manila kept when the British occupied it from |
|
# 1762-10-06 through 1764-04; for now assume it kept American time. |
|
# On 1844-08-16, Narciso ClaverÃa, governor-general of the |
# On 1844-08-16, Narciso ClaverÃa, governor-general of the |
# Philippines, issued a proclamation announcing that 1844-12-30 was to |
# Philippines, issued a proclamation announcing that 1844-12-30 was to |
# be immediately followed by 1845-01-01; see R.H. van Gent's |
# be immediately followed by 1845-01-01; see R.H. van Gent's |
Line 3158 Zone Asia/Hebron 2:20:23 - LMT 1900 Oct |
|
Line 2743 Zone Asia/Hebron 2:20:23 - LMT 1900 Oct |
|
# Philippine Star 2014-08-05 |
# Philippine Star 2014-08-05 |
# http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use-daylight-saving-time |
# http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use-daylight-saving-time |
|
|
# From Paul Goyette (2018-06-15): |
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
# In the Philippines, there is a national law, Republic Act No. 10535 |
Rule Phil 1936 only - Nov 1 0:00 1:00 - |
# which declares the official time here as "Philippine Standard Time". |
Rule Phil 1937 only - Feb 1 0:00 0 - |
# The act [1] even specifies use of PST as the abbreviation, although |
Rule Phil 1954 only - Apr 12 0:00 1:00 - |
# the FAQ provided by PAGASA [2] uses the "acronym PhST to distinguish |
Rule Phil 1954 only - Jul 1 0:00 0 - |
# it from the Pacific Standard Time (PST)." |
Rule Phil 1978 only - Mar 22 0:00 1:00 - |
# [1] http://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/ |
Rule Phil 1978 only - Sep 21 0:00 0 - |
# [2] https://www1.pagasa.dost.gov.ph/index.php/astronomy/philippine-standard-time#republic-act-10535 |
|
# |
|
# From Paul Eggert (2018-06-19): |
|
# I surveyed recent news reports, and my impression is that "PST" is |
|
# more popular among reliable English-language news sources. This is |
|
# not just a measure of Google hit counts: it's also the sizes and |
|
# influence of the sources. There is no current abbreviation for DST, |
|
# so use "PDT", the usual American style. |
|
|
|
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S |
|
Rule Phil 1936 only - Nov 1 0:00 1:00 D |
|
Rule Phil 1937 only - Feb 1 0:00 0 S |
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Rule Phil 1954 only - Apr 12 0:00 1:00 D |
|
Rule Phil 1954 only - Jul 1 0:00 0 S |
|
Rule Phil 1978 only - Mar 22 0:00 1:00 D |
|
Rule Phil 1978 only - Sep 21 0:00 0 S |
|
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31 |
Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31 |
8:04:00 - LMT 1899 May 11 |
8:04:00 - LMT 1899 May 11 |
8:00 Phil P%sT 1942 May |
8:00 Phil +08/+09 1942 May |
9:00 - JST 1944 Nov |
9:00 - +09 1944 Nov |
8:00 Phil P%sT |
8:00 Phil +08/+09 |
|
|
# Qatar |
# Qatar |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
Line 3197 Link Asia/Qatar Asia/Bahrain |
|
Line 2766 Link Asia/Qatar Asia/Bahrain |
|
|
|
# Saudi Arabia |
# Saudi Arabia |
# |
# |
# From Paul Eggert (2018-08-29): |
# From Paul Eggert (2014-07-15): |
# Time in Saudi Arabia and other countries in the Arabian peninsula was not |
# Time in Saudi Arabia and other countries in the Arabian peninsula was not |
# standardized until 1968 or so; we don't know exactly when, and possibly it |
# standardized until relatively recently; we don't know when, and possibly it |
# has never been made official. Richard P Hunt, in "Islam city yielding to |
# has never been made official. Richard P Hunt, in "Islam city yielding to |
# modern times", New York Times (1961-04-09), p 20, wrote that only airlines |
# modern times", New York Times (1961-04-09), p 20, wrote that only airlines |
# observed standard time, and that people in Jeddah mostly observed quasi-solar |
# observed standard time, and that people in Jeddah mostly observed quasi-solar |
# time, doing so by setting their watches at sunrise to 6 o'clock (or to 12 |
# time, doing so by setting their watches at sunrise to 6 o'clock (or to 12 |
# o'clock for "Arab" time). |
# o'clock for "Arab" time). |
# |
# |
# Timekeeping differed depending on who you were and which part of Saudi |
|
# Arabia you were in. In 1969, Elias Antar wrote that although a common |
|
# practice had been to set one's watch to 12:00 (i.e., midnight) at sunset - |
|
# which meant that the time on one side of a mountain could differ greatly from |
|
# the time on the other side - many foreigners set their watches to 6pm |
|
# instead, while airlines instead used UTC +03 (except in Dhahran, where they |
|
# used UTC +04), Aramco used UTC +03 with DST, and the Trans-Arabian Pipe Line |
|
# Company used Aramco time in eastern Saudi Arabia and airline time in western. |
|
# (The American Military Aid Advisory Group used plain UTC.) Antar writes, |
|
# "A man named Higgins, so the story goes, used to run a local power |
|
# station. One day, the whole thing became too much for Higgins and he |
|
# assembled his staff and laid down the law. 'I've had enough of this,' he |
|
# shrieked. 'It is now 12 o'clock Higgins Time, and from now on this station is |
|
# going to run on Higgins Time.' And so, until last year, it did." See: |
|
# Antar E. Dinner at When? Saudi Aramco World, 1969 March/April. 2-3. |
|
# http://archive.aramcoworld.com/issue/196902/dinner.at.when.htm |
|
# Also see: Antar EN. Arabian flying is confusing. |
|
# Port Angeles (WA) Evening News. 1965-03-10. page 3. |
|
# |
|
# The TZ database cannot represent quasi-solar time; airline time is the best |
# The TZ database cannot represent quasi-solar time; airline time is the best |
# we can do. The 1946 foreign air news digest of the U.S. Civil Aeronautics |
# we can do. The 1946 foreign air news digest of the U.S. Civil Aeronautics |
# Board (OCLC 42299995) reported that the "... Arabian Government, inaugurated |
# Board (OCLC 42299995) reported that the "... Arabian Government, inaugurated |
Line 3234 Link Asia/Qatar Asia/Bahrain |
|
Line 2784 Link Asia/Qatar Asia/Bahrain |
|
# |
# |
# Shanks & Pottenger also state that until 1968-05-01 Saudi Arabia had two |
# Shanks & Pottenger also state that until 1968-05-01 Saudi Arabia had two |
# time zones; the other zone, at UT +04, was in the far eastern part of |
# time zones; the other zone, at UT +04, was in the far eastern part of |
# the country. Presumably this is documenting airline time. Ignore this, |
# the country. Ignore this, as it's before our 1970 cutoff. |
# as it's before our 1970 cutoff. |
|
# |
# |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
# Zone NAME GMTOFF RULES FORMAT [UNTIL] |
Zone Asia/Riyadh 3:06:52 - LMT 1947 Mar 14 |
Zone Asia/Riyadh 3:06:52 - LMT 1947 Mar 14 |