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8305113: (tz) Update Timezone Data to 2023c
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Backport ed9592c6e81f82e2bf6508ce45ba15aad8232181
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@rgithubli
rgithubli committed Apr 13, 2023
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2 changes: 1 addition & 1 deletion make/data/tzdata/VERSION
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Expand Up @@ -21,4 +21,4 @@
# or visit www.oracle.com if you need additional information or have any
# questions.
#
tzdata2022g
tzdata2023c
71 changes: 43 additions & 28 deletions make/data/tzdata/africa
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Expand Up @@ -344,6 +344,14 @@ Rule Egypt 2007 only - Sep Thu>=1 24:00 0 -
# From Mina Samuel (2016-07-04):
# Egyptian government took the decision to cancel the DST,

# From Ahmad ElDardiry (2023-03-01):
# Egypt officially announced today that daylight savings will be
# applied from last Friday of April to last Thursday of October.
# From Paul Eggert (2023-03-01):
# Assume transitions are at 00:00 and 24:00 respectively.
# From Amir Adib (2023-03-07):
# https://www.facebook.com/EgyptianCabinet/posts/638829614954129/

Rule Egypt 2008 only - Aug lastThu 24:00 0 -
Rule Egypt 2009 only - Aug 20 24:00 0 -
Rule Egypt 2010 only - Aug 10 24:00 0 -
Expand All @@ -353,6 +361,8 @@ Rule Egypt 2014 only - May 15 24:00 1:00 S
Rule Egypt 2014 only - Jun 26 24:00 0 -
Rule Egypt 2014 only - Jul 31 24:00 1:00 S
Rule Egypt 2014 only - Sep lastThu 24:00 0 -
Rule Egypt 2023 max - Apr lastFri 0:00 1:00 S
Rule Egypt 2023 max - Oct lastThu 24:00 0 -

# Zone NAME STDOFF RULES FORMAT [UNTIL]
#STDOFF 2:05:08.9
Expand Down Expand Up @@ -452,7 +462,7 @@ Zone Africa/Nairobi 2:27:16 - LMT 1908 May
# President William R. Tolbert, Jr., July 23, 1971-July 31, 1972.
# Monrovia: Executive Mansion.
#
# Use the abbreviation "MMT" before 1972, as the more-accurate numeric
# Use the abbreviation "MMT" before 1972, as the more accurate numeric
# abbreviation "-004430" would be one byte over the POSIX limit.
#
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Expand Down Expand Up @@ -589,8 +599,8 @@ Zone Africa/Tripoli 0:52:44 - LMT 1920
# DST the coming summer...
#
# Some sources, in French:
# http://www.defimedia.info/news/946/Rashid-Beebeejaun-:-%C2%AB-L%E2%80%99heure-d%E2%80%99%C3%A9t%C3%A9-ne-sera-pas-appliqu%C3%A9e-cette-ann%C3%A9e-%C2%BB
# http://lexpress.mu/Story/3398~Beebeejaun---Les-objectifs-d-%C3%A9conomie-d-%C3%A9nergie-de-l-heure-d-%C3%A9t%C3%A9-ont-%C3%A9t%C3%A9-atteints-
# http://www.defimedia.info/news/946/Rashid-Beebeejaun-:-«-L%E2%80%99heure-d%E2%80%99été-ne-sera-pas-appliquée-cette-année-»
# http://lexpress.mu/Story/3398~Beebeejaun---Les-objectifs-d-économie-d-énergie-de-l-heure-d-été-ont-été-atteints-
#
# Our wrap-up:
# https://www.timeanddate.com/news/time/mauritius-dst-will-not-repeat.html
Expand Down Expand Up @@ -721,7 +731,7 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
# More articles in the press
# https://www.yabiladi.com/articles/details/5058/secret-l-heure-d-ete-maroc-leve.html
# http://www.lematin.ma/Actualite/Express/Article.asp?id=148923
# http://www.lavieeco.com/actualite/Le-Maroc-passe-sur-GMT%2B1-a-partir-de-dim
# http://www.lavieeco.com/actualite/Le-Maroc-passe-sur-GMT+1-a-partir-de-dim

# From Petr Machata (2011-03-30):
# They have it written in English here:
Expand All @@ -736,7 +746,7 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
# According to Infomédiaire web site from Morocco (infomediaire.ma),
# on March 9, 2012, (in French) Heure légale:
# Le Maroc adopte officiellement l'heure d'été
# http://www.infomediaire.ma/news/maroc/heure-l%C3%A9gale-le-maroc-adopte-officiellement-lheure-d%C3%A9t%C3%A9
# http://www.infomediaire.ma/news/maroc/heure-légale-le-maroc-adopte-officiellement-lheure-dété
# Governing Council adopted draft decree, that Morocco DST starts on
# the last Sunday of March (March 25, 2012) and ends on
# last Sunday of September (September 30, 2012)
Expand Down Expand Up @@ -860,19 +870,28 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
# Friday or Saturday (and so the 2 days off are on a weekend), the next time
# shift will be the next weekend.
#
# From Paul Eggert (2020-05-31):
# From Milamber (2021-03-31, 2022-03-10):
# https://www.mmsp.gov.ma/fr/actualites.aspx?id=2076
# https://www.ecoactu.ma/horaires-administration-ramadan-gmtheure-gmt-a-partir-de-dimanche-27-mars/
#
# From Milamber (2023-03-14, 2023-03-15):
# The return to legal GMT time will take place this Sunday, March 19 at 3 a.m.
# ... the return to GMT+1 will be made on Sunday April 23, 2023 at 2 a.m.
# https://www.mmsp.gov.ma/fr/actualites/passage-à-l%E2%80%99heure-gmt-à-partir-du-dimanche-19-mars-2023
#
# From Paul Eggert (2023-03-14):
# For now, guess that in the future Morocco will fall back at 03:00
# the last Sunday before Ramadan, and spring forward at 02:00 the
# first Sunday after two days after Ramadan. To implement this,
# first Sunday after one day after Ramadan. To implement this,
# transition dates and times for 2019 through 2087 were determined by
# running the following program under GNU Emacs 26.3. (This algorithm
# running the following program under GNU Emacs 28.2. (This algorithm
# also produces the correct transition dates for 2016 through 2018,
# though the times differ due to Morocco's time zone change in 2018.)
# (let ((islamic-year 1440))
# (require 'cal-islam)
# (while (< islamic-year 1511)
# (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
# (b (+ 2 (calendar-islamic-to-absolute (list 10 1 islamic-year))))
# (b (+ 1 (calendar-islamic-to-absolute (list 10 1 islamic-year))))
# (sunday 0))
# (while (/= sunday (mod (setq a (1- a)) 7)))
# (while (/= sunday (mod b 7))
Expand All @@ -886,10 +905,6 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
# (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
# (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
# (setq islamic-year (+ 1 islamic-year))))
#
# From Milamber (2021-03-31, 2022-03-10), confirming these predictions:
# https://www.mmsp.gov.ma/fr/actualites.aspx?id=2076
# https://www.ecoactu.ma/horaires-administration-ramadan-gmtheure-gmt-a-partir-de-dimanche-27-mars/

# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Morocco 1939 only - Sep 12 0:00 1:00 -
Expand Down Expand Up @@ -942,7 +957,7 @@ Rule Morocco 2021 only - May 16 2:00 0 -
Rule Morocco 2022 only - Mar 27 3:00 -1:00 -
Rule Morocco 2022 only - May 8 2:00 0 -
Rule Morocco 2023 only - Mar 19 3:00 -1:00 -
Rule Morocco 2023 only - Apr 30 2:00 0 -
Rule Morocco 2023 only - Apr 23 2:00 0 -
Rule Morocco 2024 only - Mar 10 3:00 -1:00 -
Rule Morocco 2024 only - Apr 14 2:00 0 -
Rule Morocco 2025 only - Feb 23 3:00 -1:00 -
Expand All @@ -958,7 +973,7 @@ Rule Morocco 2029 only - Feb 18 2:00 0 -
Rule Morocco 2029 only - Dec 30 3:00 -1:00 -
Rule Morocco 2030 only - Feb 10 2:00 0 -
Rule Morocco 2030 only - Dec 22 3:00 -1:00 -
Rule Morocco 2031 only - Feb 2 2:00 0 -
Rule Morocco 2031 only - Jan 26 2:00 0 -
Rule Morocco 2031 only - Dec 14 3:00 -1:00 -
Rule Morocco 2032 only - Jan 18 2:00 0 -
Rule Morocco 2032 only - Nov 28 3:00 -1:00 -
Expand All @@ -974,7 +989,7 @@ Rule Morocco 2036 only - Nov 23 2:00 0 -
Rule Morocco 2037 only - Oct 4 3:00 -1:00 -
Rule Morocco 2037 only - Nov 15 2:00 0 -
Rule Morocco 2038 only - Sep 26 3:00 -1:00 -
Rule Morocco 2038 only - Nov 7 2:00 0 -
Rule Morocco 2038 only - Oct 31 2:00 0 -
Rule Morocco 2039 only - Sep 18 3:00 -1:00 -
Rule Morocco 2039 only - Oct 23 2:00 0 -
Rule Morocco 2040 only - Sep 2 3:00 -1:00 -
Expand All @@ -990,7 +1005,7 @@ Rule Morocco 2044 only - Aug 28 2:00 0 -
Rule Morocco 2045 only - Jul 9 3:00 -1:00 -
Rule Morocco 2045 only - Aug 20 2:00 0 -
Rule Morocco 2046 only - Jul 1 3:00 -1:00 -
Rule Morocco 2046 only - Aug 12 2:00 0 -
Rule Morocco 2046 only - Aug 5 2:00 0 -
Rule Morocco 2047 only - Jun 23 3:00 -1:00 -
Rule Morocco 2047 only - Jul 28 2:00 0 -
Rule Morocco 2048 only - Jun 7 3:00 -1:00 -
Expand All @@ -1006,7 +1021,7 @@ Rule Morocco 2052 only - Jun 2 2:00 0 -
Rule Morocco 2053 only - Apr 13 3:00 -1:00 -
Rule Morocco 2053 only - May 25 2:00 0 -
Rule Morocco 2054 only - Apr 5 3:00 -1:00 -
Rule Morocco 2054 only - May 17 2:00 0 -
Rule Morocco 2054 only - May 10 2:00 0 -
Rule Morocco 2055 only - Mar 28 3:00 -1:00 -
Rule Morocco 2055 only - May 2 2:00 0 -
Rule Morocco 2056 only - Mar 12 3:00 -1:00 -
Expand All @@ -1022,7 +1037,7 @@ Rule Morocco 2060 only - Mar 7 2:00 0 -
Rule Morocco 2061 only - Jan 16 3:00 -1:00 -
Rule Morocco 2061 only - Feb 27 2:00 0 -
Rule Morocco 2062 only - Jan 8 3:00 -1:00 -
Rule Morocco 2062 only - Feb 19 2:00 0 -
Rule Morocco 2062 only - Feb 12 2:00 0 -
Rule Morocco 2062 only - Dec 31 3:00 -1:00 -
Rule Morocco 2063 only - Feb 4 2:00 0 -
Rule Morocco 2063 only - Dec 16 3:00 -1:00 -
Expand All @@ -1038,7 +1053,7 @@ Rule Morocco 2067 only - Dec 11 2:00 0 -
Rule Morocco 2068 only - Oct 21 3:00 -1:00 -
Rule Morocco 2068 only - Dec 2 2:00 0 -
Rule Morocco 2069 only - Oct 13 3:00 -1:00 -
Rule Morocco 2069 only - Nov 24 2:00 0 -
Rule Morocco 2069 only - Nov 17 2:00 0 -
Rule Morocco 2070 only - Oct 5 3:00 -1:00 -
Rule Morocco 2070 only - Nov 9 2:00 0 -
Rule Morocco 2071 only - Sep 20 3:00 -1:00 -
Expand All @@ -1054,7 +1069,7 @@ Rule Morocco 2075 only - Sep 15 2:00 0 -
Rule Morocco 2076 only - Jul 26 3:00 -1:00 -
Rule Morocco 2076 only - Sep 6 2:00 0 -
Rule Morocco 2077 only - Jul 18 3:00 -1:00 -
Rule Morocco 2077 only - Aug 29 2:00 0 -
Rule Morocco 2077 only - Aug 22 2:00 0 -
Rule Morocco 2078 only - Jul 10 3:00 -1:00 -
Rule Morocco 2078 only - Aug 14 2:00 0 -
Rule Morocco 2079 only - Jun 25 3:00 -1:00 -
Expand All @@ -1064,13 +1079,13 @@ Rule Morocco 2080 only - Jul 21 2:00 0 -
Rule Morocco 2081 only - Jun 1 3:00 -1:00 -
Rule Morocco 2081 only - Jul 13 2:00 0 -
Rule Morocco 2082 only - May 24 3:00 -1:00 -
Rule Morocco 2082 only - Jul 5 2:00 0 -
Rule Morocco 2082 only - Jun 28 2:00 0 -
Rule Morocco 2083 only - May 16 3:00 -1:00 -
Rule Morocco 2083 only - Jun 20 2:00 0 -
Rule Morocco 2084 only - Apr 30 3:00 -1:00 -
Rule Morocco 2084 only - Jun 11 2:00 0 -
Rule Morocco 2085 only - Apr 22 3:00 -1:00 -
Rule Morocco 2085 only - Jun 3 2:00 0 -
Rule Morocco 2085 only - May 27 2:00 0 -
Rule Morocco 2086 only - Apr 14 3:00 -1:00 -
Rule Morocco 2086 only - May 19 2:00 0 -
Rule Morocco 2087 only - Mar 30 3:00 -1:00 -
Expand Down Expand Up @@ -1213,15 +1228,15 @@ Zone Africa/Windhoek 1:08:24 - LMT 1892 Feb 8
# From P Chan (2020-12-03):
# GMT was adopted as the standard time of Lagos on 1905-07-01.
# Lagos Weekly Record, 1905-06-24, p 3
# http://ddsnext.crl.edu/titles/31558#?c=0&m=668&s=0&cv=2&r=0&xywh=1446%2C5221%2C1931%2C1235
# http://ddsnext.crl.edu/titles/31558#?c=0&m=668&s=0&cv=2&r=0&xywh=1446,5221,1931,1235
# says "It is officially notified that on and after the 1st of July 1905
# Greenwich Mean Solar Time will be adopted thought the Colony and
# Greenwich Mean Solar Time will be adopted throughout the Colony and
# Protectorate, and that it will be necessary to put all clocks 13 minutes and
# 35 seconds back, recording local mean time."
#
# It seemed that Lagos returned to LMT on 1908-07-01.
# [The Lagos Standard], 1908-07-01, p 5
# http://ddsnext.crl.edu/titles/31556#?c=0&m=78&s=0&cv=4&r=0&xywh=-92%2C3590%2C3944%2C2523
# http://ddsnext.crl.edu/titles/31556#?c=0&m=78&s=0&cv=4&r=0&xywh=-92,3590,3944,2523
# says "Scarcely have the people become accustomed to this new time, when
# another official notice has now appeared announcing that from and after the
# 1st July next, return will be made to local mean time."
Expand All @@ -1233,7 +1248,7 @@ Zone Africa/Windhoek 1:08:24 - LMT 1892 Feb 8
# https://libsysdigi.library.illinois.edu/ilharvest/Africana/Books2011-05/3064634/3064634_1914/3064634_1914_opt.pdf#page=27
# "On January 1st [1914], a universal standard time for Nigeria was adopted,
# viz., half an hour fast on Greenwich mean time, corresponding to the meridian
# 7 [degrees] 30' E. long."
# 7° 30' E. long."
# Lloyd's Register of Shipping (1915) says "Hitherto the time observed in Lagos
# was the local mean time. On 1st January, 1914, standard time for the whole of
# Nigeria was introduced ... Lagos time has been advanced about 16 minutes
Expand All @@ -1251,7 +1266,7 @@ Zone Africa/Windhoek 1:08:24 - LMT 1892 Feb 8
# The Lagos Weekly Record, 1919-09-20, p 3 details discussion on the first
# reading of this Bill by the Legislative Council of the Colony of Nigeria on
# Thursday 1919-08-28:
# http://ddsnext.crl.edu/titles/31558?terms&item_id=303484#?m=1118&c=1&s=0&cv=2&r=0&xywh=1261%2C3408%2C2994%2C1915
# http://ddsnext.crl.edu/titles/31558?terms&item_id=303484#?m=1118&c=1&s=0&cv=2&r=0&xywh=1261,3408,2994,1915
# "The proposal is that the Globe should be divided into twelve zones East and
# West of Greenwich, of one hour each, Nigeria falling into the zone with a
# standard of one hour fast on Greenwich Mean Time. Nigeria standard time is
Expand Down
2 changes: 1 addition & 1 deletion make/data/tzdata/antarctica
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Expand Up @@ -315,7 +315,7 @@ Zone Antarctica/Rothera 0 - -00 1976 Dec 1
# but that he found it more convenient to keep GMT+12
# as supplies for the station were coming from McMurdo Sound,
# which was on GMT+12 because New Zealand was on GMT+12 all year
# at that time (1957). (Source: Siple's book 90 Degrees South.)
# at that time (1957). (Source: Siple's book 90° South.)
#
# From Susan Smith
# http://www.cybertours.com/whs/pole10.html
Expand Down
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