8:00 PRC C%sT
# Xinjiang time, used by many in western China; represented by Ürümqi / Ürümchi
# / Wulumuqi. (Please use Asia/Shanghai if you prefer Beijing time.)
-# Vostok base in Antarctica matches this since 1970.
Zone Asia/Urumqi 5:50:20 - LMT 1928
6:00 - +06
# effective December 21st, 2018....
# http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
+# From Zhanbolat Raimbekov (2024-01-19):
+# Kazakhstan (all parts) switching to UTC+5 on March 1, 2024
+# https://www.gov.kz/memleket/entities/mti/press/news/details/688998?lang=ru
+# [in Russian]
+# (2024-01-20): https://primeminister.kz/ru/decisions/19012024-20
+#
+# From Alexander Krivenyshev (2024-01-19):
+# According to a different news and the official web site for the Ministry of
+# Trade and Integration of the Republic of Kazakhstan:
+# https://en.inform.kz/news/kazakhstan-to-switch-to-single-hour-zone-mar-1-54ad0b/
+
# Zone NAME STDOFF RULES FORMAT [UNTIL]
#
# Almaty (formerly Alma-Ata), representing most locations in Kazakhstan
-# This includes KZ-AKM, KZ-ALA, KZ-ALM, KZ-AST, KZ-BAY, KZ-VOS, KZ-ZHA,
-# KZ-KAR, KZ-SEV, KZ-PAV, and KZ-YUZ.
+# This includes Abai/Abay (ISO 3166-2 code KZ-10), Aqmola/Akmola (KZ-11),
+# Almaty (KZ-19), Almaty city (KZ-75), Astana city (KZ-71),
+# East Kazkhstan (KZ-63), Jambyl/Zhambyl (KZ-31), Jetisu/Zhetysu (KZ-33),
+# Karaganda (KZ-35), North Kazakhstan (KZ-59), Pavlodar (KZ-55),
+# Shyumkent city (KZ-79), Turkistan (KZ-61), and Ulytau (KZ-62).
Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s
6:00 RussiaAsia +06/+07 2004 Oct 31 2:00s
- 6:00 - +06
-# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-KZY)
+ 6:00 - +06 2024 Mar 1 0:00
+ 5:00 - +05
+# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-43)
Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06 2018 Dec 21 0:00
5:00 - +05
-#
-# Qostanay (aka Kostanay, Kustanay) (KZ-KUS)
+# Qostanay (aka Kostanay, Kustanay) (KZ-39)
# The 1991/2 rules are unclear partly because of the 1997 Turgai
# reorganization.
Zone Asia/Qostanay 4:14:28 - LMT 1924 May 2
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
- 6:00 - +06
-
-# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT)
+ 6:00 - +06 2024 Mar 1 0:00
+ 5:00 - +05
+# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-15)
Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
5:00 - +05
-# Mangghystaū (KZ-MAN)
+# Mangghystaū (KZ-47)
# Aqtau was not founded until 1963, but it represents an inhabited region,
# so include timestamps before 1963.
Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2
5:00 RussiaAsia +05/+06 1994 Sep 25 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
-# Atyraū (KZ-ATY) is like Mangghystaū except it switched from
+# Atyraū (KZ-23) is like Mangghystaū except it switched from
# +04/+05 to +05/+06 in spring 1999, not fall 1994.
Zone Asia/Atyrau 3:27:44 - LMT 1924 May 2
3:00 - +03 1930 Jun 21
5:00 RussiaAsia +05/+06 1999 Mar 28 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
-# West Kazakhstan (KZ-ZAP)
+# West Kazakhstan (KZ-27)
# From Paul Eggert (2016-03-18):
# The 1989 transition is from USSR act No. 227 (1989-03-14).
Zone Asia/Oral 3:25:24 - LMT 1924 May 2 # or Ural'sk
# From Heba Hamad (2023-03-22):
# ... summer time will begin in Palestine from Saturday 04-29-2023,
# 02:00 AM by 60 minutes forward.
-#
-# From Paul Eggert (2023-03-22):
+# From Heba Hemad (2023-10-09):
+# ... winter time will begin in Palestine from Saturday 10-28-2023,
+# 02:00 AM by 60 minutes back.
+#
+# From Heba Hamad (2024-01-25):
+# the summer time for the years 2024,2025 will begin in Palestine
+# from Saturday at 02:00 AM by 60 minutes forward as shown below:
+# year date
+# 2024 2024-04-20
+# 2025 2025-04-12
+#
+# From Paul Eggert (2024-01-25):
# For now, guess that spring and fall transitions will normally
# continue to use 2022's rules, that during DST Palestine will switch
# to standard time at 02:00 the last Saturday before Ramadan and back
-# to DST at 02:00 the first Saturday after Ramadan, and that
+# to DST at 02:00 the second Saturday after Ramadan, and that
# if the normal spring-forward or fall-back transition occurs during
# Ramadan the former is delayed and the latter advanced.
# To implement this, I predicted Ramadan-oriented transition dates for
-# 2023 through 2086 by running the following program under GNU Emacs 28.2,
+# 2026 through 2086 by running the following program under GNU Emacs 29.2,
# with the results integrated by hand into the table below.
# Predictions after 2086 are approximated without Ramadan.
#
-# (let ((islamic-year 1444))
+# (let ((islamic-year 1447))
# (require 'cal-islam)
# (while (< islamic-year 1510)
# (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
# (while (/= saturday (mod (setq a (1- a)) 7)))
# (while (/= saturday (mod b 7))
# (setq b (1+ b)))
+# (setq b (+ 7 b))
# (setq a (calendar-gregorian-from-absolute a))
# (setq b (calendar-gregorian-from-absolute b))
# (insert
Rule Palestine 2022 only - Mar 27 0:00 1:00 S
Rule Palestine 2022 2035 - Oct Sat<=30 2:00 0 -
Rule Palestine 2023 only - Apr 29 2:00 1:00 S
-Rule Palestine 2024 only - Apr 13 2:00 1:00 S
-Rule Palestine 2025 only - Apr 5 2:00 1:00 S
+Rule Palestine 2024 only - Apr 20 2:00 1:00 S
+Rule Palestine 2025 only - Apr 12 2:00 1:00 S
Rule Palestine 2026 2054 - Mar Sat<=30 2:00 1:00 S
Rule Palestine 2036 only - Oct 18 2:00 0 -
Rule Palestine 2037 only - Oct 10 2:00 0 -
Rule Palestine 2038 only - Sep 25 2:00 0 -
Rule Palestine 2039 only - Sep 17 2:00 0 -
-Rule Palestine 2039 only - Oct 22 2:00 1:00 S
-Rule Palestine 2039 2067 - Oct Sat<=30 2:00 0 -
Rule Palestine 2040 only - Sep 1 2:00 0 -
-Rule Palestine 2040 only - Oct 13 2:00 1:00 S
+Rule Palestine 2040 only - Oct 20 2:00 1:00 S
+Rule Palestine 2040 2067 - Oct Sat<=30 2:00 0 -
Rule Palestine 2041 only - Aug 24 2:00 0 -
-Rule Palestine 2041 only - Sep 28 2:00 1:00 S
+Rule Palestine 2041 only - Oct 5 2:00 1:00 S
Rule Palestine 2042 only - Aug 16 2:00 0 -
-Rule Palestine 2042 only - Sep 20 2:00 1:00 S
+Rule Palestine 2042 only - Sep 27 2:00 1:00 S
Rule Palestine 2043 only - Aug 1 2:00 0 -
-Rule Palestine 2043 only - Sep 12 2:00 1:00 S
+Rule Palestine 2043 only - Sep 19 2:00 1:00 S
Rule Palestine 2044 only - Jul 23 2:00 0 -
-Rule Palestine 2044 only - Aug 27 2:00 1:00 S
+Rule Palestine 2044 only - Sep 3 2:00 1:00 S
Rule Palestine 2045 only - Jul 15 2:00 0 -
-Rule Palestine 2045 only - Aug 19 2:00 1:00 S
+Rule Palestine 2045 only - Aug 26 2:00 1:00 S
Rule Palestine 2046 only - Jun 30 2:00 0 -
-Rule Palestine 2046 only - Aug 11 2:00 1:00 S
+Rule Palestine 2046 only - Aug 18 2:00 1:00 S
Rule Palestine 2047 only - Jun 22 2:00 0 -
-Rule Palestine 2047 only - Jul 27 2:00 1:00 S
+Rule Palestine 2047 only - Aug 3 2:00 1:00 S
Rule Palestine 2048 only - Jun 6 2:00 0 -
-Rule Palestine 2048 only - Jul 18 2:00 1:00 S
+Rule Palestine 2048 only - Jul 25 2:00 1:00 S
Rule Palestine 2049 only - May 29 2:00 0 -
-Rule Palestine 2049 only - Jul 3 2:00 1:00 S
+Rule Palestine 2049 only - Jul 10 2:00 1:00 S
Rule Palestine 2050 only - May 21 2:00 0 -
-Rule Palestine 2050 only - Jun 25 2:00 1:00 S
+Rule Palestine 2050 only - Jul 2 2:00 1:00 S
Rule Palestine 2051 only - May 6 2:00 0 -
-Rule Palestine 2051 only - Jun 17 2:00 1:00 S
+Rule Palestine 2051 only - Jun 24 2:00 1:00 S
Rule Palestine 2052 only - Apr 27 2:00 0 -
-Rule Palestine 2052 only - Jun 1 2:00 1:00 S
+Rule Palestine 2052 only - Jun 8 2:00 1:00 S
Rule Palestine 2053 only - Apr 12 2:00 0 -
-Rule Palestine 2053 only - May 24 2:00 1:00 S
+Rule Palestine 2053 only - May 31 2:00 1:00 S
Rule Palestine 2054 only - Apr 4 2:00 0 -
-Rule Palestine 2054 only - May 16 2:00 1:00 S
-Rule Palestine 2055 only - May 1 2:00 1:00 S
-Rule Palestine 2056 only - Apr 22 2:00 1:00 S
-Rule Palestine 2057 only - Apr 7 2:00 1:00 S
-Rule Palestine 2058 max - Mar Sat<=30 2:00 1:00 S
+Rule Palestine 2054 only - May 23 2:00 1:00 S
+Rule Palestine 2055 only - May 8 2:00 1:00 S
+Rule Palestine 2056 only - Apr 29 2:00 1:00 S
+Rule Palestine 2057 only - Apr 14 2:00 1:00 S
+Rule Palestine 2058 only - Apr 6 2:00 1:00 S
+Rule Palestine 2059 max - Mar Sat<=30 2:00 1:00 S
Rule Palestine 2068 only - Oct 20 2:00 0 -
Rule Palestine 2069 only - Oct 12 2:00 0 -
Rule Palestine 2070 only - Oct 4 2:00 0 -
Rule Palestine 2071 only - Sep 19 2:00 0 -
Rule Palestine 2072 only - Sep 10 2:00 0 -
-Rule Palestine 2072 only - Oct 15 2:00 1:00 S
+Rule Palestine 2072 only - Oct 22 2:00 1:00 S
+Rule Palestine 2072 max - Oct Sat<=30 2:00 0 -
Rule Palestine 2073 only - Sep 2 2:00 0 -
-Rule Palestine 2073 only - Oct 7 2:00 1:00 S
+Rule Palestine 2073 only - Oct 14 2:00 1:00 S
Rule Palestine 2074 only - Aug 18 2:00 0 -
-Rule Palestine 2074 only - Sep 29 2:00 1:00 S
+Rule Palestine 2074 only - Oct 6 2:00 1:00 S
Rule Palestine 2075 only - Aug 10 2:00 0 -
-Rule Palestine 2075 only - Sep 14 2:00 1:00 S
-Rule Palestine 2075 max - Oct Sat<=30 2:00 0 -
+Rule Palestine 2075 only - Sep 21 2:00 1:00 S
Rule Palestine 2076 only - Jul 25 2:00 0 -
-Rule Palestine 2076 only - Sep 5 2:00 1:00 S
+Rule Palestine 2076 only - Sep 12 2:00 1:00 S
Rule Palestine 2077 only - Jul 17 2:00 0 -
-Rule Palestine 2077 only - Aug 28 2:00 1:00 S
+Rule Palestine 2077 only - Sep 4 2:00 1:00 S
Rule Palestine 2078 only - Jul 9 2:00 0 -
-Rule Palestine 2078 only - Aug 13 2:00 1:00 S
+Rule Palestine 2078 only - Aug 20 2:00 1:00 S
Rule Palestine 2079 only - Jun 24 2:00 0 -
-Rule Palestine 2079 only - Aug 5 2:00 1:00 S
+Rule Palestine 2079 only - Aug 12 2:00 1:00 S
Rule Palestine 2080 only - Jun 15 2:00 0 -
-Rule Palestine 2080 only - Jul 20 2:00 1:00 S
+Rule Palestine 2080 only - Jul 27 2:00 1:00 S
Rule Palestine 2081 only - Jun 7 2:00 0 -
-Rule Palestine 2081 only - Jul 12 2:00 1:00 S
+Rule Palestine 2081 only - Jul 19 2:00 1:00 S
Rule Palestine 2082 only - May 23 2:00 0 -
-Rule Palestine 2082 only - Jul 4 2:00 1:00 S
+Rule Palestine 2082 only - Jul 11 2:00 1:00 S
Rule Palestine 2083 only - May 15 2:00 0 -
-Rule Palestine 2083 only - Jun 19 2:00 1:00 S
+Rule Palestine 2083 only - Jun 26 2:00 1:00 S
Rule Palestine 2084 only - Apr 29 2:00 0 -
-Rule Palestine 2084 only - Jun 10 2:00 1:00 S
+Rule Palestine 2084 only - Jun 17 2:00 1:00 S
Rule Palestine 2085 only - Apr 21 2:00 0 -
-Rule Palestine 2085 only - Jun 2 2:00 1:00 S
+Rule Palestine 2085 only - Jun 9 2:00 1:00 S
Rule Palestine 2086 only - Apr 13 2:00 0 -
-Rule Palestine 2086 only - May 18 2:00 1:00 S
+Rule Palestine 2086 only - May 25 2:00 1:00 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
# Philippines
-# From Paul Eggert (2018-11-18):
+# From Paul Eggert (2024-01-21):
# 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.
# Philippines, issued a proclamation announcing that 1844-12-30 was to
# be immediately followed by 1845-01-01; see R.H. van Gent's
# History of the International Date Line
-# https://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm
+# https://webspace.science.uu.nl/~gent0113/idl/idl_philippines.htm
# The rest of the data entries are from Shanks & Pottenger.
# From Jesper Nørgaard Welen (2006-04-26):
# 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 (2022-07-27) after a 2014 heads-up from Trần Ngọc Quân:
+# From Paul Eggert (2024-01-14) after a 2014 heads-up from Trần Ngọc Quân
+# and a 2024-01-14 heads-up from Đoàn Trần Công Danh:
# 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:
#
# 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.
+# 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 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.
#
-# Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu",
-# NXB Thuận Hoá, Huế, 1995.
+# Here is the decision for the September 1945 transition:
+# Võ Nguyên Giáp, Việt Nam Dân Quốc Công Báo, No. 1 (1945-09-29), page 13
+# http://baochi.nlv.gov.vn/baochi/cgi-bin/baochi?a=d&d=JwvzO19450929.2.5&dliv=none
+# It says that on 1945-09-01 at 24:00, Vietnam moved back two hours, to +07.
+# It also mentions a 1945-03-29 decree (by a Japanese Goveror-General)
+# to set the time zone to +09, but does not say whether that decree
+# merely legalized an earlier change to +09.
+#
+# July 1955 transition:
+# Ngô Đình Diệm, Công Báo Việt Nam, No. 92 (1955-07-02), page 1780-1781
+# Ordinance (Dụ) No. 46 (1955-06-25)
+# http://ddsnext.crl.edu/titles/32341#?c=0&m=29&s=0&cv=4&r=0&xywh=-89%2C342%2C1724%2C1216
+# It says that on 1955-07-01 at 01:00, South Vietnam moved back 1 hour (to +07).
+#
+# December 1959 transition:
+# Ngô Đình Diệm, Công Báo Việt Nam Cộng Hòa, 1960 part 1 (1960-01-02), page 62
+# Decree (Sắc lệnh) No. 362-TTP (1959-12-30)
+# http://ddsnext.crl.edu/titles/32341#?c=0&m=138&s=0&cv=793&r=0&xywh=-54%2C1504%2C1705%2C1202
+# It says that on 1959-12-31 at 23:00, South Vietnam moved forward 1 hour (to +08).
+
# Zone NAME STDOFF RULES FORMAT [UNTIL]
#STDOFF 7:06:30.13
7:06:30 - PLMT 1911 May 1 # Phù Liễn MT
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
- 9:00 - +09 1945 Sep 2
+ 9:00 - +09 1945 Sep 1 24:00
7:00 - +07 1947 Apr 1
- 8:00 - +08 1955 Jul 1
+ 8:00 - +08 1955 Jul 1 01:00
7:00 - +07 1959 Dec 31 23:00
8:00 - +08 1975 Jun 13
7:00 - +07
projects / factor.git / blobdiff