commit 9619cdb7b7f63f2d8a71d35c8672be93fd6255e9
Author: Yoshiki Sato <ysatowse@openjdk.org>
Date: Wed Apr 5 01:19:00 2023 +0000
Backport ed9592c6e81f82e2bf6508ce45ba15aad8232181
diff --git a/make/data/tzdata/VERSION b/make/data/tzdata/VERSION
index 0f328a4a7ff..66bd061e8bc 100644
--- a/make/data/tzdata/VERSION
+++ b/make/data/tzdata/VERSION
@@ -21,4 +21,4 @@
# or visit www.oracle.com if you need additional information or have any
# questions.
#
-tzdata2022g
+tzdata2023c
diff --git a/make/data/tzdata/africa b/make/data/tzdata/africa
index 830d7d10b7e..a73405fdb01 100644
--- a/make/data/tzdata/africa
+++ b/make/data/tzdata/africa
@@ -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 -
@@ -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
@@ -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]
@@ -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
@@ -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:
@@ -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)
@@ -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))
@@ -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 -
@@ -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 -
@@ -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 -
@@ -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 -
@@ -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 -
@@ -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 -
@@ -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 -
@@ -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 -
@@ -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 -
@@ -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 -
@@ -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."
@@ -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
@@ -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
diff --git a/make/data/tzdata/antarctica b/make/data/tzdata/antarctica
index 792542b9224..3de5e726eb4 100644
--- a/make/data/tzdata/antarctica
+++ b/make/data/tzdata/antarctica
@@ -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
diff --git a/make/data/tzdata/asia b/make/data/tzdata/asia
index ff81978bc47..6a048c3ad28 100644
--- a/make/data/tzdata/asia
+++ b/make/data/tzdata/asia
@@ -2714,6 +2714,40 @@ Zone Asia/Pyongyang 8:23:00 - LMT 1908 Apr 1
# Lebanon
+#
+# From Saadallah Itani (2023-03-23):
+# Lebanon ... announced today delay of Spring forward from March 25 to April 20.
+#
+# From Paul Eggert (2023-03-27):
+# This announcement was by the Lebanese caretaker prime minister Najib Mikati.
+# https://www.mtv.com.lb/en/News/Local/1352516/lebanon-postpones-daylight-saving-time-adoption
+# A video was later leaked to the media of parliament speaker Nabih Berri
+# asking Mikati to postpone DST to aid observance of Ramadan, Mikati objecting
+# that this would cause problems such as scheduling airline flights, to which
+# Berri interjected, "What flights?"
+#
+# The change was controversial and led to a partly-sectarian divide.
+# Many Lebanese institutions, including the education ministry, the Maronite
+# church, and two news channels LCBI and MTV, ignored the announcement and
+# went ahead with the long-scheduled spring-forward on March 25/26, some
+# arguing that the prime minister had not followed the law because the change
+# had not been approved by the cabinet. Google went with the announcement;
+# Apple ignored it. At least one bank followed the announcement for its doors,
+# but ignored the announcement in internal computer systems.
+# Beirut international airport listed two times for each departure.
+# Dan Azzi wrote "My view is that this whole thing is a Dumb and Dumber movie."
+# Eventually the prime minister backed down, said the cabinet had decided to
+# stick with its 1998 decision, and that DST would begin midnight March 29/30.
+# https://www.nna-leb.gov.lb/en/miscellaneous/604093/lebanon-has-two-times-of-day-amid-daylight-savings
+# https://www.cnbc.com/2023/03/27/lebanon-in-two-different-time-zones-as-government-disagrees-on-daylight-savings.html
+#
+# Although we could model the chaos with two Zones, that would likely cause
+# more trouble than it would cure. Since so many manual clocks and
+# computer-based timestamps ignored the announcement, stick with official
+# cabinet resolutions in the data while recording the prime minister's
+# announcement as a comment. This is how we treated a similar situation in
+# Rio de Janeiro in spring 1993.
+#
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Lebanon 1920 only - Mar 28 0:00 1:00 S
Rule Lebanon 1920 only - Oct 25 0:00 0 -
@@ -2739,6 +2773,10 @@ Rule Lebanon 1992 only - Oct 4 0:00 0 -
Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S
Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 -
Rule Lebanon 1999 max - Oct lastSun 0:00 0 -
+# This one-time rule, announced by the prime minister first for April 21
+# then for March 30, is commented out for reasons described above.
+#Rule Lebanon 2023 only - Mar 30 0:00 1:00 S
+
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Beirut 2:22:00 - LMT 1880
2:00 Lebanon EE%sT
@@ -2977,7 +3015,7 @@ Zone Asia/Kathmandu 5:41:16 - LMT 1920
# 9pm and moving clocks forward by one hour for the next three months. ...."
#
# http://www.worldtimezone.com/dst_news/dst_news_pakistan01.html
-# http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4
+# http://www.dailytimes.com.pk/default.asp?page=2008\05\15\story_15-5-2008_pg1_4
# From Arthur David Olson (2008-05-19):
# XXX--midnight transitions is a guess; 2008 only is a guess.
@@ -3300,7 +3338,7 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
# Some of many sources in Arabic:
# http://www.samanews.com/index.php?act=Show&id=122638
#
-# http://safa.ps/details/news/74352/%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-%D8%A8%D8%A7%D9%84%D8%B6%D9%81%D8%A9-%D9%88%D8%BA%D8%B2%D8%A9-%D9%84%D9%8A%D9%84%D8%A9-%D8%A7%D9%84%D8%AC%D9%85%D8%B9%D8%A9.html
+# http://safa.ps/details/news/74352/بدء-التوقيت-الصيفي-بالضفة-وغزة-ليلة-الجمعة.html
#
# Our brief summary:
# https://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
@@ -3310,7 +3348,7 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
# time from midnight on Friday, March 29, 2013" (translated).
# [These are in Arabic and are for Gaza and for Ramallah, respectively.]
# http://www.samanews.com/index.php?act=Show&id=154120
-# http://safa.ps/details/news/99844/%D8%B1%D8%A7%D9%85-%D8%A7%D9%84%D9%84%D9%87-%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-29-%D8%A7%D9%84%D8%AC%D8%A7%D8%B1%D9%8A.html
+# http://safa.ps/details/news/99844/رام-الله-بدء-التوقيت-الصيفي-29-الجاري.html
# From Steffen Thorsen (2013-09-24):
# The Gaza and West Bank are ending DST Thursday at midnight
@@ -3408,9 +3446,41 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
# (2022-08-31): ... the Saturday before the last Sunday in March and October
# at 2:00 AM ,for the years from 2023 to 2026.
# (2022-09-05): https://mtit.pna.ps/Site/New/1453
-#
-# From Paul Eggert (2022-08-31):
-# For now, assume that this rule will also be used after 2026.
+
+# 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):
+# 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
+# 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,
+# with the results integrated by hand into the table below.
+# Predictions after 2086 are approximated without Ramadan.
+#
+# (let ((islamic-year 1444))
+# (require 'cal-islam)
+# (while (< islamic-year 1510)
+# (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
+# (b (+ 1 (calendar-islamic-to-absolute (list 10 1 islamic-year))))
+# (saturday 6))
+# (while (/= saturday (mod (setq a (1- a)) 7)))
+# (while (/= saturday (mod b 7))
+# (setq b (1+ b)))
+# (setq a (calendar-gregorian-from-absolute a))
+# (setq b (calendar-gregorian-from-absolute b))
+# (insert
+# (format
+# (concat "Rule Palestine\t%d\tonly\t-\t%s\t%2d\t2:00\t0\t-\n"
+# "Rule Palestine\t%d\tonly\t-\t%s\t%2d\t2:00\t1:00\tS\n")
+# (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
+# (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
+# (setq islamic-year (+ 1 islamic-year))))
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
@@ -3450,8 +3520,86 @@ Rule Palestine 2020 2021 - Mar Sat<=30 0:00 1:00 S
Rule Palestine 2020 only - Oct 24 1:00 0 -
Rule Palestine 2021 only - Oct 29 1:00 0 -
Rule Palestine 2022 only - Mar 27 0:00 1:00 S
-Rule Palestine 2022 max - Oct Sat<=30 2:00 0 -
-Rule Palestine 2023 max - Mar Sat<=30 2:00 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 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 2041 only - Aug 24 2:00 0 -
+Rule Palestine 2041 only - Sep 28 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 2043 only - Aug 1 2:00 0 -
+Rule Palestine 2043 only - Sep 12 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 2045 only - Jul 15 2:00 0 -
+Rule Palestine 2045 only - Aug 19 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 2047 only - Jun 22 2:00 0 -
+Rule Palestine 2047 only - Jul 27 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 2049 only - May 29 2:00 0 -
+Rule Palestine 2049 only - Jul 3 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 2051 only - May 6 2:00 0 -
+Rule Palestine 2051 only - Jun 17 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 2053 only - Apr 12 2:00 0 -
+Rule Palestine 2053 only - May 24 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 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 2073 only - Sep 2 2:00 0 -
+Rule Palestine 2073 only - Oct 7 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 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 2076 only - Jul 25 2:00 0 -
+Rule Palestine 2076 only - Sep 5 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 2078 only - Jul 9 2:00 0 -
+Rule Palestine 2078 only - Aug 13 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 2080 only - Jun 15 2:00 0 -
+Rule Palestine 2080 only - Jul 20 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 2082 only - May 23 2:00 0 -
+Rule Palestine 2082 only - Jul 4 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 2084 only - Apr 29 2:00 0 -
+Rule Palestine 2084 only - Jun 10 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 2086 only - Apr 13 2:00 0 -
+Rule Palestine 2086 only - May 18 2:00 1:00 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
@@ -3655,7 +3803,7 @@ Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1
# standard time is SLST.
#
# From Paul Eggert (2016-10-18):
-# "SLST" seems to be reasonably recent and rarely-used outside time
+# "SLST" seems to be reasonably recent and rarely used outside time
# zone nerd sources. I searched Google News and found three uses of
# it in the International Business Times of India in February and
# March of this year when discussing cricket match times, but nothing
diff --git a/make/data/tzdata/australasia b/make/data/tzdata/australasia
index fbe3b8a6d72..893d7055eab 100644
--- a/make/data/tzdata/australasia
+++ b/make/data/tzdata/australasia
@@ -346,7 +346,7 @@ Zone Antarctica/Macquarie 0 - -00 1899 Nov
# From Steffen Thorsen (2013-01-10):
# Fiji will end DST on 2014-01-19 02:00:
-# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVINGS-TO-END-THIS-MONTH-%281%29.aspx
+# http://www.fiji.gov.fj/Media-Center/Press-Releases/DAYLIGHT-SAVINGS-TO-END-THIS-MONTH-(1).aspx
# From Ken Rylander (2014-10-20):
# DST will start Nov. 2 this year.
@@ -746,7 +746,7 @@ Zone Pacific/Pago_Pago 12:37:12 - LMT 1892 Jul 5
#
# Samoa's Daylight Saving Time Act 2009 is available here, but does not
# contain any dates:
-# http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20%28English%29%20-%20Final%207-7-091.pdf
+# http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%202009%20(English)%20-%20Final%207-7-091.pdf
# From Laupue Raymond Hughes (2010-10-07):
# Please see
@@ -1831,7 +1831,7 @@ Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila
# period. It would probably be reasonable to assume Guam use GMT+9 during
# that period of time like the surrounding area.
-# From Paul Eggert (2018-11-18):
+# From Paul Eggert (2023-01-23):
# Howse writes (p 153) "The Spaniards, on the other hand, reached the
# Philippines and the Ladrones from America," and implies that the Ladrones
# (now called the Marianas) kept American date for quite some time.
@@ -1844,7 +1844,7 @@ Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila
# they did as that avoids the need for a separate zone due to our 1970 cutoff.
#
# US Public Law 106-564 (2000-12-23) made UT +10 the official standard time,
-# under the name "Chamorro Standard Time". There is no official abbreviation,
+# under the name "Chamorro standard time". There is no official abbreviation,
# but Congressman Robert A. Underwood, author of the bill that became law,
# wrote in a press release (2000-12-27) that he will seek the use of "ChST".
@@ -2222,24 +2222,18 @@ Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila
# an international standard, there are some places on the high seas where the
# correct date is ambiguous.
-# From Wikipedia <https://en.wikipedia.org/wiki/Time_zone> (2005-08-31):
-# Before 1920, all ships kept local apparent time on the high seas by setting
-# their clocks at night or at the morning sight so that, given the ship's
-# speed and direction, it would be 12 o'clock when the Sun crossed the ship's
-# meridian (12 o'clock = local apparent noon). During 1917, at the
-# Anglo-French Conference on Time-keeping at Sea, it was recommended that all
-# ships, both military and civilian, should adopt hourly standard time zones
-# on the high seas. Whenever a ship was within the territorial waters of any
-# nation it would use that nation's standard time. The captain was permitted
-# to change his ship's clocks at a time of his choice following his ship's
-# entry into another zone time - he often chose midnight. These zones were
-# adopted by all major fleets between 1920 and 1925 but not by many
-# independent merchant ships until World War II.
-
-# From Paul Eggert, using references suggested by Oscar van Vlijmen
-# (2005-03-20):
-#
-# The American Practical Navigator (2002)
-# http://pollux.nss.nima.mil/pubs/pubs_j_apn_sections.html?rid=187
-# talks only about the 180-degree meridian with respect to ships in
-# international waters; it ignores the international date line.
+# From Wikipedia <https://en.wikipedia.org/wiki/Nautical_time> (2023-01-23):
+# The nautical time zone system is analogous to the terrestrial time zone
+# system for use on high seas. Under the system time changes are required for
+# changes of longitude in one-hour steps. The one-hour step corresponds to a
+# time zone width of 15° longitude. The 15° gore that is offset from GMT or
+# UT1 (not UTC) by twelve hours is bisected by the nautical date line into two
+# 7°30' gores that differ from GMT by ±12 hours. A nautical date line is
+# implied but not explicitly drawn on time zone maps. It follows the 180th
+# meridian except where it is interrupted by territorial waters adjacent to
+# land, forming gaps: it is a pole-to-pole dashed line.
+
+# From Paul Eggert (2023-01-23):
+# The American Practical Navigator <https://msi.nga.mil/Publications/APN>,
+# 2019 edition, merely says that the International Date Line
+# "coincides with the 180th meridian over most of its length."
diff --git a/make/data/tzdata/backward b/make/data/tzdata/backward
index fa44f655009..c0746d6dd1b 100644
--- a/make/data/tzdata/backward
+++ b/make/data/tzdata/backward
@@ -297,6 +297,7 @@ Link America/Argentina/Cordoba America/Rosario
Link America/Tijuana America/Santa_Isabel
Link America/Denver America/Shiprock
Link America/Toronto America/Thunder_Bay
+Link America/Edmonton America/Yellowknife
Link Pacific/Auckland Antarctica/South_Pole
Link Asia/Shanghai Asia/Chongqing
Link Asia/Shanghai Asia/Harbin
diff --git a/make/data/tzdata/europe b/make/data/tzdata/europe
index acc5da3ec79..446d2e1e658 100644
--- a/make/data/tzdata/europe
+++ b/make/data/tzdata/europe
@@ -540,9 +540,7 @@ Zone Europe/London -0:01:15 - LMT 1847 Dec 1
# other form with a traditional approximation for Irish timestamps
# after 1971-10-31 02:00 UTC; although this approximation has tm_isdst
# flags that are reversed, its UTC offsets are correct and this often
-# suffices. This source file currently uses only nonnegative SAVE
-# values, but this is intended to change and downstream code should
-# not rely on it.
+# suffices....
#
# The following is like GB-Eire and EU, except with standard time in
# summer and negative daylight saving time in winter. It is for when
@@ -1136,19 +1134,18 @@ Zone Atlantic/Faroe -0:27:04 - LMT 1908 Jan 11 # Tórshavn
#
# From Jürgen Appel (2022-11-25):
# https://ina.gl/samlinger/oversigt-over-samlinger/samling/dagsordener/dagsorden.aspx?lang=da&day=24-11-2022
-# If I understand this correctly, from the next planned switch to
-# summer time, Greenland will permanently stay at that time, i.e. no
-# switch back to winter time in 2023 will occur.
-#
-# From Paul Eggert (2022-11-28):
-# The official document in Danish
-# https://naalakkersuisut.gl/-/media/naalakkersuisut/filer/kundgoerelser/2022/11/2511/31_da_inatsisartutlov-om-tidens-bestemmelse.pdf?la=da&hash=A33597D8A38CC7038465241119EF34F3
-# says standard time for Greenland is -02, that Naalakkersuisut can lay down
-# rules for DST and can require some areas to use a different time zone,
-# and that this all takes effect 2023-03-25 22:00. The abovementioned
-# "bekymringer" URL says the intent is no transition March 25, that
-# Greenland will not go back to winter time in fall 2023, and that
-# only America/Nuuk is affected (though further changes may occur).
+#
+# From Thomas M. Steenholdt (2022-12-02):
+# - The bill to move America/Nuuk from UTC-03 to UTC-02 passed.
+# - The bill to stop observing DST did not (Greenland will stop observing DST
+# when EU does).
+# Details on the implementation are here (section 6):
+# https://ina.gl/dvd/EM%202022/pdf/media/2553529/pkt17_em2022_tidens_bestemmelse_bem_da.pdf
+# This is how the change will be implemented:
+# 1. The shift *to* DST in 2023 happens as normal.
+# 2. The shift *from* DST in 2023 happens as normal, but coincides with the
+# shift to UTC-02 normaltime (people will not change their clocks here).
+# 3. After this, DST is still observed, but as -02/-01 instead of -03/-02.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Thule 1991 1992 - Mar lastSun 2:00 1:00 D
@@ -1172,8 +1169,8 @@ Zone America/Scoresbysund -1:27:52 - LMT 1916 Jul 28 # Ittoqqortoormiit
-1:00 EU -01/+00
Zone America/Nuuk -3:26:56 - LMT 1916 Jul 28 # Godthåb
-3:00 - -03 1980 Apr 6 2:00
- -3:00 EU -03/-02 2023 Mar 25 22:00
- -2:00 - -02
+ -3:00 EU -03/-02 2023 Oct 29 1:00u
+ -2:00 EU -02/-01
Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik
-4:00 Thule A%sT
@@ -1509,9 +1506,9 @@ Zone Europe/Paris 0:09:21 - LMT 1891 Mar 16
Rule Germany 1946 only - Apr 14 2:00s 1:00 S
Rule Germany 1946 only - Oct 7 2:00s 0 -
Rule Germany 1947 1949 - Oct Sun>=1 2:00s 0 -
-# http://www.ptb.de/de/org/4/44/441/salt.htm says the following transition
-# occurred at 3:00 MEZ, not the 2:00 MEZ given in Shanks & Pottenger.
-# Go with the PTB.
+# https://www.ptb.de/cms/en/ptb/fachabteilungen/abt4/fb-44/ag-441/realisation-of-legal-time-in-germany/dst-and-midsummer-dst-in-germany-until-1979.html
+# says the following transition occurred at 3:00 MEZ, not the 2:00 MEZ
+# given in Shanks & Pottenger. Go with the PTB.
Rule Germany 1947 only - Apr 6 3:00s 1:00 S
Rule Germany 1947 only - May 11 2:00s 2:00 M
Rule Germany 1947 only - Jun 29 3:00 1:00 S
@@ -2272,7 +2269,7 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct
# the State Duma has approved ... the draft bill on returning to
# winter time standard and return Russia 11 time zones. The new
# regulations will come into effect on October 26, 2014 at 02:00 ...
-# http://asozd2.duma.gov.ru/main.nsf/%28Spravka%29?OpenAgent&RN=431985-6&02
+# http://asozd2.duma.gov.ru/main.nsf/(Spravka)?OpenAgent&RN=431985-6&02
# Here is a link where we put together table (based on approved Bill N
# 431985-6) with proposed 11 Russian time zones and corresponding
# areas/cities/administrative centers in the Russian Federation (in English):
@@ -2682,13 +2679,13 @@ Zone Europe/Volgograd 2:57:40 - LMT 1920 Jan 3
3:00 - +03 1930 Jun 21
4:00 - +04 1961 Nov 11
4:00 Russia +04/+05 1988 Mar 27 2:00s
- 3:00 Russia +03/+04 1991 Mar 31 2:00s
+ 3:00 Russia MSK/MSD 1991 Mar 31 2:00s
4:00 - +04 1992 Mar 29 2:00s
- 3:00 Russia +03/+04 2011 Mar 27 2:00s
- 4:00 - +04 2014 Oct 26 2:00s
- 3:00 - +03 2018 Oct 28 2:00s
+ 3:00 Russia MSK/MSD 2011 Mar 27 2:00s
+ 4:00 - MSK 2014 Oct 26 2:00s
+ 3:00 - MSK 2018 Oct 28 2:00s
4:00 - +04 2020 Dec 27 2:00s
- 3:00 - +03
+ 3:00 - MSK
# From Paul Eggert (2016-11-11):
# Europe/Saratov covers:
@@ -2719,11 +2716,11 @@ Zone Europe/Saratov 3:04:18 - LMT 1919 Jul 1 0:00u
Zone Europe/Kirov 3:18:48 - LMT 1919 Jul 1 0:00u
3:00 - +03 1930 Jun 21
4:00 Russia +04/+05 1989 Mar 26 2:00s
- 3:00 Russia +03/+04 1991 Mar 31 2:00s
+ 3:00 Russia MSK/MSD 1991 Mar 31 2:00s
4:00 - +04 1992 Mar 29 2:00s
- 3:00 Russia +03/+04 2011 Mar 27 2:00s
- 4:00 - +04 2014 Oct 26 2:00s
- 3:00 - +03
+ 3:00 Russia MSK/MSD 2011 Mar 27 2:00s
+ 4:00 - MSK 2014 Oct 26 2:00s
+ 3:00 - MSK
# From Tim Parenti (2014-07-03), per Oscar van Vlijmen (2001-08-25):
# Europe/Samara covers...
diff --git a/make/data/tzdata/iso3166.tab b/make/data/tzdata/iso3166.tab
index fbfb74bec45..cea17732dd1 100644
--- a/make/data/tzdata/iso3166.tab
+++ b/make/data/tzdata/iso3166.tab
@@ -261,7 +261,7 @@ SY Syria
SZ Eswatini (Swaziland)
TC Turks & Caicos Is
TD Chad
-TF French Southern Territories
+TF French S. Terr.
TG Togo
TH Thailand
TJ Tajikistan
diff --git a/make/data/tzdata/leapseconds b/make/data/tzdata/leapseconds
index d6fb840f512..89ce8b89cd2 100644
--- a/make/data/tzdata/leapseconds
+++ b/make/data/tzdata/leapseconds
@@ -95,11 +95,11 @@ Leap 2016 Dec 31 23:59:60 + S
# Any additional leap seconds will come after this.
# This Expires line is commented out for now,
# so that pre-2020a zic implementations do not reject this file.
-#Expires 2023 Jun 28 00:00:00
+#Expires 2023 Dec 28 00:00:00
# POSIX timestamps for the data in this file:
#updated 1467936000 (2016-07-08 00:00:00 UTC)
-#expires 1687910400 (2023-06-28 00:00:00 UTC)
+#expires 1703721600 (2023-12-28 00:00:00 UTC)
-# Updated through IERS Bulletin C64
-# File expires on: 28 June 2023
+# Updated through IERS Bulletin C65
+# File expires on: 28 December 2023
diff --git a/make/data/tzdata/northamerica b/make/data/tzdata/northamerica
index a5fd701f88c..e240cf35103 100644
--- a/make/data/tzdata/northamerica
+++ b/make/data/tzdata/northamerica
@@ -1,4 +1,3 @@
-#
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
@@ -299,9 +298,10 @@ Zone PST8PDT -8:00 US P%sT
# -10 Standard Alaska Time (AST) Alaska-Hawaii standard time (AHST)
# -11 (unofficial) Nome (NST) Bering standard time (BST)
#
-# From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
-# Public law 106-564 (2000-12-23) introduced ... "Chamorro Standard Time"
+# From Paul Eggert (2023-01-23), from a 2001-01-08 heads-up from Rives McDow:
+# Public law 106-564 (2000-12-23) introduced "Chamorro standard time"
# for time in Guam and the Northern Marianas. See the file "australasia".
+# Also see 15 U.S.C. §263 <https://www.law.cornell.edu/uscode/text/15/263>.
#
# From Paul Eggert (2015-04-17):
# HST and HDT are standardized abbreviations for Hawaii-Aleutian
@@ -618,7 +618,7 @@ Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 20:00u
# local times of other Alaskan locations so that they change simultaneously.
# From Paul Eggert (2014-07-18):
-# One opinion of the early-1980s turmoil in Alaska over time zones and
+# One opinion of the early 1980s turmoil in Alaska over time zones and
# daylight saving time appeared as graffiti on a Juneau airport wall:
# "Welcome to Juneau. Please turn your watch back to the 19th century."
# See: Turner W. Alaska's four time zones now two. NY Times 1983-11-01.
@@ -690,6 +690,10 @@ Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 20:00u
# So they won't be waiting for Alaska to join them on 2019-03-10, but will
# rather change their clocks twice in seven weeks.
+# From Paul Eggert (2023-01-23):
+# America/Adak is for the Aleutian Islands that are part of Alaska
+# and are west of 169.5° W.
+
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone America/Juneau 15:02:19 - LMT 1867 Oct 19 15:33:32
-8:57:41 - LMT 1900 Aug 20 12:00
@@ -2148,10 +2152,6 @@ Zone America/Fort_Nelson -8:10:47 - LMT 1884
# Nunavut ... moved ... to incorporate the whole territory into one time zone.
# Nunavut moves to single time zone Oct. 31
# http://www.nunatsiaq.com/nunavut/nvt90903_13.html
-#
-# From Antoine Leca (1999-09-06):
-# We then need to create a new timezone for the Kitikmeot region of Nunavut
-# to differentiate it from the Yellowknife region.
# From Paul Eggert (1999-09-20):
# Basic Facts: The New Territory
@@ -2345,9 +2345,6 @@ Zone America/Cambridge_Bay 0 - -00 1920 # trading post est.?
-5:00 - EST 2000 Nov 5 0:00
-6:00 - CST 2001 Apr 1 3:00
-7:00 Canada M%sT
-Zone America/Yellowknife 0 - -00 1935 # Yellowknife founded?
- -7:00 NT_YK M%sT 1980
- -7:00 Canada M%sT
Zone America/Inuvik 0 - -00 1953 # Inuvik founded
-8:00 NT_YK P%sT 1979 Apr lastSun 2:00
-7:00 NT_YK M%sT 1980
@@ -2584,7 +2581,7 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
# and in addition changes all of Chihuahua to -06 with no DST.
# From Heitor David Pinto (2022-11-28):
-# Now the northern municipalities want to have the same time zone as the
+# Now the northern [municipios] want to have the same time zone as the
# respective neighboring cities in the US, for example Juárez in UTC-7 with
# DST, matching El Paso, and Ojinaga in UTC-6 with DST, matching Presidio....
# the president authorized the publication of the decree for November 29,
@@ -2621,7 +2618,7 @@ Zone America/Merida -5:58:28 - LMT 1922 Jan 1 6:00u
-5:00 - EST 1982 Dec 2
-6:00 Mexico C%sT
# Coahuila, Nuevo León, Tamaulipas (near US border)
-# This includes the following municipalities:
+# This includes the following municipios:
# in Coahuila: Acuña, Allende, Guerrero, Hidalgo, Jiménez, Morelos, Nava,
# Ocampo, Piedras Negras, Villa Unión, Zaragoza
# in Nuevo León: Anáhuac
@@ -2647,8 +2644,8 @@ Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 7:00u
-6:00 - CST 2002 Feb 20
-6:00 Mexico C%sT
# Chihuahua (near US border - western side)
-# This includes the municipalities of Janos, Ascensión, Juárez, Guadalupe,
-# and Práxedis G Guerrero.
+# This includes the municipios of Janos, Ascensión, Juárez, Guadalupe, and
+# Práxedis G Guerrero.
# http://gaceta.diputados.gob.mx/PDF/65/2a022/nov/20221124-VII.pdf
Zone America/Ciudad_Juarez -7:05:56 - LMT 1922 Jan 1 7:00u
-7:00 - MST 1927 Jun 10 23:00
@@ -2662,7 +2659,8 @@ Zone America/Ciudad_Juarez -7:05:56 - LMT 1922 Jan 1 7:00u
-6:00 - CST 2022 Nov 30 0:00
-7:00 US M%sT
# Chihuahua (near US border - eastern side)
-# The municipalities of Coyame del Sotol, Ojinaga, and Manuel Benavides.
+# This includes the municipios of Coyame del Sotol, Ojinaga, and Manuel
+# Benavides.
# http://gaceta.diputados.gob.mx/PDF/65/2a022/nov/20221124-VII.pdf
Zone America/Ojinaga -6:57:40 - LMT 1922 Jan 1 7:00u
-7:00 - MST 1927 Jun 10 23:00
@@ -3083,7 +3081,7 @@ Zone America/Costa_Rica -5:36:13 - LMT 1890 # San José
#
# He supplied these references:
#
-# http://www.prensalatina.com.mx/article.asp?ID=%7B4CC32C1B-A9F7-42FB-8A07-8631AFC923AF%7D&language=ES
+# http://www.prensalatina.com.mx/article.asp?ID={4CC32C1B-A9F7-42FB-8A07-8631AFC923AF}&language=ES
# http://actualidad.terra.es/sociedad/articulo/cuba_llama_ahorrar_energia_cambio_1957044.htm
#
# From Alex Krivenyshev (2007-10-25):
diff --git a/make/data/tzdata/southamerica b/make/data/tzdata/southamerica
index 81fdd793df4..4024e7180cd 100644
--- a/make/data/tzdata/southamerica
+++ b/make/data/tzdata/southamerica
@@ -231,7 +231,7 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 -
# Hora de verano para la República Argentina
# http://buenasiembra.com.ar/esoterismo/astrologia/hora-de-verano-de-la-republica-argentina-27.html
# says that standard time in Argentina from 1894-10-31
-# to 1920-05-01 was -4:16:48.25. Go with this more-precise value
+# to 1920-05-01 was -4:16:48.25. Go with this more precise value
# over Shanks & Pottenger. It is upward compatible with Milne, who
# says Córdoba time was -4:16:48.2.
diff --git a/make/data/tzdata/zone.tab b/make/data/tzdata/zone.tab
index 939432d3456..3edb0d61c80 100644
--- a/make/data/tzdata/zone.tab
+++ b/make/data/tzdata/zone.tab
@@ -144,9 +144,8 @@ CA +744144-0944945 America/Resolute Central - NU (Resolute)
CA +624900-0920459 America/Rankin_Inlet Central - NU (central)
CA +5024-10439 America/Regina CST - SK (most areas)
CA +5017-10750 America/Swift_Current CST - SK (midwest)
-CA +5333-11328 America/Edmonton Mountain - AB; BC (E); SK (W)
+CA +5333-11328 America/Edmonton Mountain - AB; BC (E); NT (E); SK (W)
CA +690650-1050310 America/Cambridge_Bay Mountain - NU (west)
-CA +6227-11421 America/Yellowknife Mountain - NT (central)
CA +682059-1334300 America/Inuvik Mountain - NT (west)
CA +4906-11631 America/Creston MST - BC (Creston)
CA +5546-12014 America/Dawson_Creek MST - BC (Dawson Cr, Ft St John)
@@ -162,7 +161,7 @@ CG -0416+01517 Africa/Brazzaville
CH +4723+00832 Europe/Zurich
CI +0519-00402 Africa/Abidjan
CK -2114-15946 Pacific/Rarotonga
-CL -3327-07040 America/Santiago Chile (most areas)
+CL -3327-07040 America/Santiago most of Chile
CL -5309-07055 America/Punta_Arenas Region of Magallanes
CL -2709-10926 Pacific/Easter Easter Island
CM +0403+00942 Africa/Douala
@@ -174,10 +173,10 @@ CU +2308-08222 America/Havana
CV +1455-02331 Atlantic/Cape_Verde
CW +1211-06900 America/Curacao
CX -1025+10543 Indian/Christmas
-CY +3510+03322 Asia/Nicosia Cyprus (most areas)
+CY +3510+03322 Asia/Nicosia most of Cyprus
CY +3507+03357 Asia/Famagusta Northern Cyprus
CZ +5005+01426 Europe/Prague
-DE +5230+01322 Europe/Berlin Germany (most areas)
+DE +5230+01322 Europe/Berlin most of Germany
DE +4742+00841 Europe/Busingen Busingen
DJ +1136+04309 Africa/Djibouti
DK +5540+01235 Europe/Copenhagen
@@ -210,7 +209,7 @@ GF +0456-05220 America/Cayenne
GG +492717-0023210 Europe/Guernsey
GH +0533-00013 Africa/Accra
GI +3608-00521 Europe/Gibraltar
-GL +6411-05144 America/Nuuk Greenland (most areas)
+GL +6411-05144 America/Nuuk most of Greenland
GL +7646-01840 America/Danmarkshavn National Park (east coast)
GL +7029-02158 America/Scoresbysund Scoresbysund/Ittoqqortoormiit
GL +7634-06847 America/Thule Thule/Pituffik
@@ -258,7 +257,7 @@ KP +3901+12545 Asia/Pyongyang
KR +3733+12658 Asia/Seoul
KW +2920+04759 Asia/Kuwait
KY +1918-08123 America/Cayman
-KZ +4315+07657 Asia/Almaty Kazakhstan (most areas)
+KZ +4315+07657 Asia/Almaty most of Kazakhstan
KZ +4448+06528 Asia/Qyzylorda Qyzylorda/Kyzylorda/Kzyl-Orda
KZ +5312+06337 Asia/Qostanay Qostanay/Kostanay/Kustanay
KZ +5017+05710 Asia/Aqtobe Aqtobe/Aktobe
@@ -282,12 +281,12 @@ MD +4700+02850 Europe/Chisinau
ME +4226+01916 Europe/Podgorica
MF +1804-06305 America/Marigot
MG -1855+04731 Indian/Antananarivo
-MH +0709+17112 Pacific/Majuro Marshall Islands (most areas)
+MH +0709+17112 Pacific/Majuro most of Marshall Islands
MH +0905+16720 Pacific/Kwajalein Kwajalein
MK +4159+02126 Europe/Skopje
ML +1239-00800 Africa/Bamako
MM +1647+09610 Asia/Yangon
-MN +4755+10653 Asia/Ulaanbaatar Mongolia (most areas)
+MN +4755+10653 Asia/Ulaanbaatar most of Mongolia
MN +4801+09139 Asia/Hovd Bayan-Olgiy, Govi-Altai, Hovd, Uvs, Zavkhan
MN +4804+11430 Asia/Choibalsan Dornod, Sukhbaatar
MO +221150+1133230 Asia/Macau
@@ -325,7 +324,7 @@ NO +5955+01045 Europe/Oslo
NP +2743+08519 Asia/Kathmandu
NR -0031+16655 Pacific/Nauru
NU -1901-16955 Pacific/Niue
-NZ -3652+17446 Pacific/Auckland New Zealand (most areas)
+NZ -3652+17446 Pacific/Auckland most of New Zealand
NZ -4357-17633 Pacific/Chatham Chatham Islands
OM +2336+05835 Asia/Muscat
PA +0858-07932 America/Panama
@@ -333,7 +332,7 @@ PE -1203-07703 America/Lima
PF -1732-14934 Pacific/Tahiti Society Islands
PF -0900-13930 Pacific/Marquesas Marquesas Islands
PF -2308-13457 Pacific/Gambier Gambier Islands
-PG -0930+14710 Pacific/Port_Moresby Papua New Guinea (most areas)
+PG -0930+14710 Pacific/Port_Moresby most of Papua New Guinea
PG -0613+15534 Pacific/Bougainville Bougainville
PH +1435+12100 Asia/Manila
PK +2452+06703 Asia/Karachi
@@ -379,7 +378,7 @@ RU +4310+13156 Asia/Vladivostok MSK+07 - Amur River
RU +643337+1431336 Asia/Ust-Nera MSK+07 - Oymyakonsky
RU +5934+15048 Asia/Magadan MSK+08 - Magadan
RU +4658+14242 Asia/Sakhalin MSK+08 - Sakhalin Island
-RU +6728+15343 Asia/Srednekolymsk MSK+08 - Sakha (E); North Kuril Is
+RU +6728+15343 Asia/Srednekolymsk MSK+08 - Sakha (E); N Kuril Is
RU +5301+15839 Asia/Kamchatka MSK+09 - Kamchatka
RU +6445+17729 Asia/Anadyr MSK+09 - Bering Sea
RW -0157+03004 Africa/Kigali
@@ -420,7 +419,7 @@ TT +1039-06131 America/Port_of_Spain
TV -0831+17913 Pacific/Funafuti
TW +2503+12130 Asia/Taipei
TZ -0648+03917 Africa/Dar_es_Salaam
-UA +5026+03031 Europe/Kyiv Ukraine (most areas)
+UA +5026+03031 Europe/Kyiv most of Ukraine
UG +0019+03225 Africa/Kampala
UM +2813-17722 Pacific/Midway Midway Islands
UM +1917+16637 Pacific/Wake Wake Island
@@ -443,7 +442,7 @@ US +465042-1012439 America/North_Dakota/New_Salem Central - ND (Morton rural)
US +471551-1014640 America/North_Dakota/Beulah Central - ND (Mercer)
US +394421-1045903 America/Denver Mountain (most areas)
US +433649-1161209 America/Boise Mountain - ID (south); OR (east)
-US +332654-1120424 America/Phoenix MST - Arizona (except Navajo)
+US +332654-1120424 America/Phoenix MST - AZ (except Navajo)
US +340308-1181434 America/Los_Angeles Pacific
US +611305-1495401 America/Anchorage Alaska (most areas)
US +581807-1342511 America/Juneau Alaska - Juneau area
@@ -451,7 +450,7 @@ US +571035-1351807 America/Sitka Alaska - Sitka area
US +550737-1313435 America/Metlakatla Alaska - Annette Island
US +593249-1394338 America/Yakutat Alaska - Yakutat
US +643004-1652423 America/Nome Alaska (west)
-US +515248-1763929 America/Adak Aleutian Islands
+US +515248-1763929 America/Adak Alaska - western Aleutians
US +211825-1575130 Pacific/Honolulu Hawaii
UY -345433-0561245 America/Montevideo
UZ +3940+06648 Asia/Samarkand Uzbekistan (west)
diff --git a/src/java.base/share/classes/sun/util/calendar/ZoneInfoFile.java b/src/java.base/share/classes/sun/util/calendar/ZoneInfoFile.java
index ef278203182..3762eb820bb 100644
--- a/src/java.base/share/classes/sun/util/calendar/ZoneInfoFile.java
+++ b/src/java.base/share/classes/sun/util/calendar/ZoneInfoFile.java
@@ -608,6 +608,17 @@ public final class ZoneInfoFile {
params[8] = endRule.secondOfDay * 1000;
params[9] = toSTZTime[endRule.timeDefinition];
dstSavings = (startRule.offsetAfter - startRule.offsetBefore) * 1000;
+
+ // Note: known mismatching -> Africa/Cairo
+ // ZoneInfo : startDayOfWeek=5 <= Thursday
+ // startTime=86400000 <= 24:00
+ // This: startDayOfWeek=6 <= Friday
+ // startTime=0 <= 0:00
+ if (zoneId.equals("Africa/Cairo") &&
+ params[7] == Calendar.FRIDAY && params[8] == 0) {
+ params[7] = Calendar.THURSDAY;
+ params[8] = SECONDS_PER_DAY * 1000;
+ }
} else if (nTrans > 0) { // only do this if there is something in table already
if (lastyear < LASTYEAR) {
// ZoneInfo has an ending entry for 2037
diff --git a/src/java.base/share/classes/sun/util/resources/TimeZoneNames.java b/src/java.base/share/classes/sun/util/resources/TimeZoneNames.java
index bf7918659ae..2763ac30ca7 100644
--- a/src/java.base/share/classes/sun/util/resources/TimeZoneNames.java
+++ b/src/java.base/share/classes/sun/util/resources/TimeZoneNames.java
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1996, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -845,9 +845,7 @@ public final class TimeZoneNames extends TimeZoneNamesBundle {
{"Europe/Jersey", GMTBST},
{"Europe/Kaliningrad", EET},
{"Europe/Kiev", EET},
- {"Europe/Kirov", new String[] {"Kirov Standard Time", "GMT+03:00",
- "Kirov Daylight Time", "GMT+03:00",
- "Kirov Time", "GMT+03:00"}},
+ {"Europe/Kirov", MSK},
{"Europe/Lisbon", WET},
{"Europe/Ljubljana", CET},
{"Europe/London", GMTBST},
diff --git a/test/jdk/java/util/TimeZone/TimeZoneData/VERSION b/test/jdk/java/util/TimeZone/TimeZoneData/VERSION
index 0f66ee12c94..c5483b48512 100644
--- a/test/jdk/java/util/TimeZone/TimeZoneData/VERSION
+++ b/test/jdk/java/util/TimeZone/TimeZoneData/VERSION
@@ -1 +1 @@
-tzdata2022g
+tzdata2023c
diff --git a/test/jdk/java/util/TimeZone/TimeZoneData/aliases.txt b/test/jdk/java/util/TimeZone/TimeZoneData/aliases.txt
index d495743b268..07c5edbafee 100644
--- a/test/jdk/java/util/TimeZone/TimeZoneData/aliases.txt
+++ b/test/jdk/java/util/TimeZone/TimeZoneData/aliases.txt
@@ -211,6 +211,7 @@ Link America/Argentina/Cordoba America/Rosario
Link America/Tijuana America/Santa_Isabel
Link America/Denver America/Shiprock
Link America/Toronto America/Thunder_Bay
+Link America/Edmonton America/Yellowknife
Link Pacific/Auckland Antarctica/South_Pole
Link Asia/Shanghai Asia/Chongqing
Link Asia/Shanghai Asia/Harbin
diff --git a/test/jdk/java/util/TimeZone/TimeZoneData/displaynames.txt b/test/jdk/java/util/TimeZone/TimeZoneData/displaynames.txt
index 44db4dbdb81..03f5305e65e 100644
--- a/test/jdk/java/util/TimeZone/TimeZoneData/displaynames.txt
+++ b/test/jdk/java/util/TimeZone/TimeZoneData/displaynames.txt
@@ -92,7 +92,6 @@ America/Vancouver PST PDT
America/Whitehorse MST
America/Winnipeg CST CDT
America/Yakutat AKST AKDT
-America/Yellowknife MST MDT
Antarctica/Macquarie AEST AEDT
Asia/Beirut EET EEST
Asia/Famagusta EET EEST
@@ -144,6 +143,7 @@ Europe/Dublin IST/GMT IST/GMT
Europe/Gibraltar CET CEST
Europe/Helsinki EET EEST
Europe/Kaliningrad EET
+Europe/Kirov MSK
Europe/Kyiv EET EEST
Europe/Lisbon WET WEST
Europe/London GMT/BST GMT/BST
@@ -160,6 +160,7 @@ Europe/Tallinn EET EEST
Europe/Tirane CET CEST
Europe/Vienna CET CEST
Europe/Vilnius EET EEST
+Europe/Volgograd MSK
Europe/Warsaw CET CEST
Europe/Zurich CET CEST
HST HST
diff --git a/test/jdk/java/util/TimeZone/TimeZoneTest.java b/test/jdk/java/util/TimeZone/TimeZoneTest.java
index d31d1722b7b..8e5d403f87b 100644
--- a/test/jdk/java/util/TimeZone/TimeZoneTest.java
+++ b/test/jdk/java/util/TimeZone/TimeZoneTest.java
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2021, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -25,7 +25,7 @@
* @test
* @bug 4028006 4044013 4096694 4107276 4107570 4112869 4130885 7039469 7126465 7158483
* 8008577 8077685 8098547 8133321 8138716 8148446 8151876 8159684 8166875 8181157
- * 8228469 8274407
+ * 8228469 8274407 8305113
* @modules java.base/sun.util.resources
* @library /java/text/testlib
* @summary test TimeZone
@@ -121,7 +121,7 @@ public class TimeZoneTest extends IntlTest
new ZoneDescriptor("GMT", 0, false),
new ZoneDescriptor("UTC", 0, false),
new ZoneDescriptor("ECT", 60, true),
- new ZoneDescriptor("ART", 120, false),
+ new ZoneDescriptor("ART", 120, true),
new ZoneDescriptor("EET", 120, true),
new ZoneDescriptor("EAT", 180, false),
new ZoneDescriptor("MET", 60, true),