Update tzdata to 2023d

python · Dec 23, 2023 · 8af58de · 8af58de
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diff --git a/NEWS.md b/NEWS.md
@@ -1,3 +1,52 @@
+# Version 2023.4
+Upstream version 2023d released 2023-12-22T04:02:24+00:00
+
+## Briefly:
+
+Ittoqqortoormiit, Greenland changes time zones on 2024-03-31. Vostok, Antarctica
+changed time zones on 2023-12-18. Casey, Antarctica changed time zones five
+times since 2020. Code and data fixes for Palestine timestamps starting in 2072.
+A new data file zonenow.tab for timestamps starting now.
+
+## Changes to future timestamps
+
+Ittoqqortoormiit, Greenland (America/Scoresbysund) joins most of the rest of
+Greenland's timekeeping practice on 2024-03-31, by changing its time zone from
+-01/+00 to -02/-01 at the same moment as the spring-forward transition.  Its
+clocks will therefore not spring forward as previously scheduled.  The time zone
+change reverts to its common practice before 1981.
+
+Fix predictions for DST transitions in Palestine in 2072-2075, correcting a typo
+introduced in 2023a.
+
+## Changes to past and future timestamps
+
+Vostok, Antarctica changed to +05 on 2023-12-18.  It had been at +07 (not +06)
+for years.  (Thanks to Zakhary V. Akulov.)
+
+Change data for Casey, Antarctica to agree with timeanddate.com, by adding five
+time zone changes since 2020.  Casey is now at +08 instead of +11.
+
+## Changes to past tm_isdst flags
+
+Much of Greenland, represented by America/Nuuk, changed its standard time from
+-03 to -02 on 2023-03-25, not on 2023-10-28. This does not affect UTC offsets,
+only the tm_isdst flag. (Thanks to Thomas M. Steenholdt.)
+
+## New data file
+
+A new data file zonenow.tab helps configure applications that use timestamps
+dated from now on.  This simplifies configuration, since users choose from a
+smaller Zone set.  The file's format is experimental and subject to change.
+
+## Changes to commentary
+
+Limitations and hazards of the optional support for obsolescent C89 platforms
+are documented better, along with a tentative schedule for removing this
+support.
+
+---
+
 # Version 2023.3
 Upstream version 2023c released 2023-03-28T19:42:14+00:00
 

diff --git a/VERSION b/VERSION
@@ -1 +1 @@
-2023.3
+2023.4rc0
diff --git a/news.d/2023d.md b/news.d/2023d.md
@@ -0,0 +1,46 @@
+# Version 2023.4
+Upstream version 2023d released 2023-12-22T04:02:24+00:00
+
+## Briefly:
+
+Ittoqqortoormiit, Greenland changes time zones on 2024-03-31. Vostok, Antarctica
+changed time zones on 2023-12-18. Casey, Antarctica changed time zones five
+times since 2020. Code and data fixes for Palestine timestamps starting in 2072.
+A new data file zonenow.tab for timestamps starting now.
+
+## Changes to future timestamps
+
+Ittoqqortoormiit, Greenland (America/Scoresbysund) joins most of the rest of
+Greenland's timekeeping practice on 2024-03-31, by changing its time zone from
+-01/+00 to -02/-01 at the same moment as the spring-forward transition.  Its
+clocks will therefore not spring forward as previously scheduled.  The time zone
+change reverts to its common practice before 1981.
+
+Fix predictions for DST transitions in Palestine in 2072-2075, correcting a typo
+introduced in 2023a.
+
+## Changes to past and future timestamps
+
+Vostok, Antarctica changed to +05 on 2023-12-18.  It had been at +07 (not +06)
+for years.  (Thanks to Zakhary V. Akulov.)
+
+Change data for Casey, Antarctica to agree with timeanddate.com, by adding five
+time zone changes since 2020.  Casey is now at +08 instead of +11.
+
+## Changes to past tm_isdst flags
+
+Much of Greenland, represented by America/Nuuk, changed its standard time from
+-03 to -02 on 2023-03-25, not on 2023-10-28. This does not affect UTC offsets,
+only the tm_isdst flag. (Thanks to Thomas M. Steenholdt.)
+
+## New data file
+
+A new data file zonenow.tab helps configure applications that use timestamps
+dated from now on.  This simplifies configuration, since users choose from a
+smaller Zone set.  The file's format is experimental and subject to change.
+
+## Changes to commentary
+
+Limitations and hazards of the optional support for obsolescent C89 platforms
+are documented better, along with a tentative schedule for removing this
+support.
diff --git a/src/tzdata/__init__.py b/src/tzdata/__init__.py
@@ -1,6 +1,6 @@
 # IANA versions like 2020a are not valid PEP 440 identifiers; the recommended
 # way to translate the version is to use YYYY.n where `n` is a 0-based index.
-__version__ = "2023.3"
+__version__ = "2023.4rc0"
 
 # This exposes the original IANA version number.
-IANA_VERSION = "2023c"
+IANA_VERSION = "2023d"
diff --git a/src/tzdata/zoneinfo/America/Ensenada b/src/tzdata/zoneinfo/America/Ensenada
diff --git a/src/tzdata/zoneinfo/America/Godthab b/src/tzdata/zoneinfo/America/Godthab
diff --git a/src/tzdata/zoneinfo/America/Goose_Bay b/src/tzdata/zoneinfo/America/Goose_Bay
diff --git a/src/tzdata/zoneinfo/America/Indiana/Winamac b/src/tzdata/zoneinfo/America/Indiana/Winamac
diff --git a/src/tzdata/zoneinfo/America/Matamoros b/src/tzdata/zoneinfo/America/Matamoros
diff --git a/src/tzdata/zoneinfo/America/Metlakatla b/src/tzdata/zoneinfo/America/Metlakatla
diff --git a/src/tzdata/zoneinfo/America/Moncton b/src/tzdata/zoneinfo/America/Moncton
diff --git a/src/tzdata/zoneinfo/America/Nuuk b/src/tzdata/zoneinfo/America/Nuuk
diff --git a/src/tzdata/zoneinfo/America/Ojinaga b/src/tzdata/zoneinfo/America/Ojinaga
diff --git a/src/tzdata/zoneinfo/America/Santa_Isabel b/src/tzdata/zoneinfo/America/Santa_Isabel
diff --git a/src/tzdata/zoneinfo/America/Scoresbysund b/src/tzdata/zoneinfo/America/Scoresbysund
diff --git a/src/tzdata/zoneinfo/America/St_Johns b/src/tzdata/zoneinfo/America/St_Johns
diff --git a/src/tzdata/zoneinfo/America/Tijuana b/src/tzdata/zoneinfo/America/Tijuana
diff --git a/src/tzdata/zoneinfo/Antarctica/Casey b/src/tzdata/zoneinfo/Antarctica/Casey
diff --git a/src/tzdata/zoneinfo/Antarctica/Macquarie b/src/tzdata/zoneinfo/Antarctica/Macquarie
diff --git a/src/tzdata/zoneinfo/Antarctica/Troll b/src/tzdata/zoneinfo/Antarctica/Troll
diff --git a/src/tzdata/zoneinfo/Antarctica/Vostok b/src/tzdata/zoneinfo/Antarctica/Vostok
diff --git a/src/tzdata/zoneinfo/Asia/Gaza b/src/tzdata/zoneinfo/Asia/Gaza
diff --git a/src/tzdata/zoneinfo/Asia/Hebron b/src/tzdata/zoneinfo/Asia/Hebron
diff --git a/src/tzdata/zoneinfo/Asia/Nicosia b/src/tzdata/zoneinfo/Asia/Nicosia
diff --git a/src/tzdata/zoneinfo/Canada/Newfoundland b/src/tzdata/zoneinfo/Canada/Newfoundland
diff --git a/src/tzdata/zoneinfo/Europe/Belfast b/src/tzdata/zoneinfo/Europe/Belfast
diff --git a/src/tzdata/zoneinfo/Europe/Bucharest b/src/tzdata/zoneinfo/Europe/Bucharest
diff --git a/src/tzdata/zoneinfo/Europe/Chisinau b/src/tzdata/zoneinfo/Europe/Chisinau
diff --git a/src/tzdata/zoneinfo/Europe/Guernsey b/src/tzdata/zoneinfo/Europe/Guernsey
diff --git a/src/tzdata/zoneinfo/Europe/Isle_of_Man b/src/tzdata/zoneinfo/Europe/Isle_of_Man
diff --git a/src/tzdata/zoneinfo/Europe/Jersey b/src/tzdata/zoneinfo/Europe/Jersey
diff --git a/src/tzdata/zoneinfo/Europe/Kiev b/src/tzdata/zoneinfo/Europe/Kiev
diff --git a/src/tzdata/zoneinfo/Europe/Kyiv b/src/tzdata/zoneinfo/Europe/Kyiv
diff --git a/src/tzdata/zoneinfo/Europe/London b/src/tzdata/zoneinfo/Europe/London
diff --git a/src/tzdata/zoneinfo/Europe/Nicosia b/src/tzdata/zoneinfo/Europe/Nicosia
diff --git a/src/tzdata/zoneinfo/Europe/Riga b/src/tzdata/zoneinfo/Europe/Riga
diff --git a/src/tzdata/zoneinfo/Europe/Sofia b/src/tzdata/zoneinfo/Europe/Sofia
diff --git a/src/tzdata/zoneinfo/Europe/Tallinn b/src/tzdata/zoneinfo/Europe/Tallinn
diff --git a/src/tzdata/zoneinfo/Europe/Tiraspol b/src/tzdata/zoneinfo/Europe/Tiraspol
diff --git a/src/tzdata/zoneinfo/Europe/Uzhgorod b/src/tzdata/zoneinfo/Europe/Uzhgorod
diff --git a/src/tzdata/zoneinfo/Europe/Vilnius b/src/tzdata/zoneinfo/Europe/Vilnius
diff --git a/src/tzdata/zoneinfo/Europe/Zaporozhye b/src/tzdata/zoneinfo/Europe/Zaporozhye
diff --git a/src/tzdata/zoneinfo/GB b/src/tzdata/zoneinfo/GB
diff --git a/src/tzdata/zoneinfo/GB-Eire b/src/tzdata/zoneinfo/GB-Eire
diff --git a/src/tzdata/zoneinfo/Mexico/BajaNorte b/src/tzdata/zoneinfo/Mexico/BajaNorte
diff --git a/src/tzdata/zoneinfo/Pacific/Norfolk b/src/tzdata/zoneinfo/Pacific/Norfolk
diff --git a/src/tzdata/zoneinfo/iso3166.tab b/src/tzdata/zoneinfo/iso3166.tab
@@ -3,17 +3,22 @@
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 #
-# From Paul Eggert (2022-11-18):
+# From Paul Eggert (2023-09-06):
 # This file contains a table of two-letter country codes.  Columns are
 # separated by a single tab.  Lines beginning with '#' are comments.
 # All text uses UTF-8 encoding.  The columns of the table are as follows:
 #
 # 1.  ISO 3166-1 alpha-2 country code, current as of
-#     ISO 3166-1 N1087 (2022-09-02).  See: Updates on ISO 3166-1
-#     https://isotc.iso.org/livelink/livelink/Open/16944257
-# 2.  The usual English name for the coded region,
-#     chosen so that alphabetic sorting of subsets produces helpful lists.
-#     This is not the same as the English name in the ISO 3166 tables.
+#     ISO/TC 46 N1108 (2023-04-05).  See: ISO/TC 46 Documents
+#     https://www.iso.org/committee/48750.html?view=documents
+# 2.  The usual English name for the coded region.  This sometimes
+#     departs from ISO-listed names, sometimes so that sorted subsets
+#     of names are useful (e.g., "Samoa (American)" and "Samoa
+#     (western)" rather than "American Samoa" and "Samoa"),
+#     sometimes to avoid confusion among non-experts (e.g.,
+#     "Czech Republic" and "Turkey" rather than "Czechia" and "Türkiye"),
+#     and sometimes to omit needless detail or churn (e.g., "Netherlands"
+#     rather than "Netherlands (the)" or "Netherlands (Kingdom of the)").
 #
 # The table is sorted by country code.
 #

diff --git a/src/tzdata/zoneinfo/leapseconds b/src/tzdata/zoneinfo/leapseconds
@@ -72,11 +72,11 @@ 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	Dec	28	00:00:00
+#Expires 2024	Jun	28	00:00:00
 
 # POSIX timestamps for the data in this file:
 #updated 1467936000 (2016-07-08 00:00:00 UTC)
-#expires 1703721600 (2023-12-28 00:00:00 UTC)
+#expires 1719532800 (2024-06-28 00:00:00 UTC)
 
-#	Updated through IERS Bulletin C65
-#	File expires on:  28 December 2023
+#	Updated through IERS Bulletin C66
+#	File expires on:  28 June 2024
diff --git a/src/tzdata/zoneinfo/tzdata.zi b/src/tzdata/zoneinfo/tzdata.zi
@@ -1,4 +1,4 @@
-# version 2023c
+# version 2023d
 # This zic input file is in the public domain.
 R d 1916 o - Jun 14 23s 1 S
 R d 1916 1919 - O Su>=1 23s 0 -
@@ -394,7 +394,12 @@ Z Antarctica/Casey 0 - -00 1969
 8 - +08 2019 O 4 3
 11 - +11 2020 Mar 8 3
 8 - +08 2020 O 4 0:1
-11 - +11
+11 - +11 2021 Mar 14
+8 - +08 2021 O 3 0:1
+11 - +11 2022 Mar 13
+8 - +08 2022 O 2 0:1
+11 - +11 2023 Mar 9 3
+8 - +08
 Z Antarctica/Davis 0 - -00 1957 Ja 13
 7 - +07 1964 N
 0 - -00 1969 F
@@ -410,6 +415,11 @@ R Tr 2005 ma - Mar lastSu 1u 2 +02
 R Tr 2004 ma - O lastSu 1u 0 +00
 Z Antarctica/Troll 0 - -00 2005 F 12
 0 Tr %s
+Z Antarctica/Vostok 0 - -00 1957 D 16
+7 - +07 1994 F
+0 - -00 1994 N
+7 - +07 2023 D 18 2
+5 - +05
 Z Antarctica/Rothera 0 - -00 1976 D
 -3 - -03
 Z Asia/Kabul 4:36:48 - LMT 1890
@@ -1050,13 +1060,13 @@ R P 2070 o - O 4 2 0 -
 R P 2071 o - S 19 2 0 -
 R P 2072 o - S 10 2 0 -
 R P 2072 o - O 15 2 1 S
+R P 2072 ma - O Sa<=30 2 0 -
 R P 2073 o - S 2 2 0 -
 R P 2073 o - O 7 2 1 S
 R P 2074 o - Au 18 2 0 -
 R P 2074 o - S 29 2 1 S
 R P 2075 o - Au 10 2 0 -
 R P 2075 o - S 14 2 1 S
-R P 2075 ma - O Sa<=30 2 0 -
 R P 2076 o - Jul 25 2 0 -
 R P 2076 o - S 5 2 1 S
 R P 2077 o - Jul 17 2 0 -
@@ -1831,10 +1841,12 @@ Z America/Danmarkshavn -1:14:40 - LMT 1916 Jul 28
 Z America/Scoresbysund -1:27:52 - LMT 1916 Jul 28
 -2 - -02 1980 Ap 6 2
 -2 c -02/-01 1981 Mar 29
--1 E -01/+00
+-1 E -01/+00 2024 Mar 31
+-2 E -02/-01
 Z America/Nuuk -3:26:56 - LMT 1916 Jul 28
 -3 - -03 1980 Ap 6 2
--3 E -03/-02 2023 O 29 1u
+-3 E -03/-02 2023 Mar 26 1u
+-2 - -02 2023 O 29 1u
 -2 E -02/-01
 Z America/Thule -4:35:8 - LMT 1916 Jul 28
 -4 Th A%sT
@@ -4185,7 +4197,6 @@ L America/Puerto_Rico America/Tortola
 L Pacific/Port_Moresby Antarctica/DumontDUrville
 L Pacific/Auckland Antarctica/McMurdo
 L Asia/Riyadh Antarctica/Syowa
-L Asia/Urumqi Antarctica/Vostok
 L Europe/Berlin Arctic/Longyearbyen
 L Asia/Riyadh Asia/Aden
 L Asia/Qatar Asia/Bahrain

diff --git a/src/tzdata/zoneinfo/zone.tab b/src/tzdata/zoneinfo/zone.tab
@@ -48,7 +48,7 @@ AR	-3124-06411	America/Argentina/Cordoba	Argentina (most areas: CB, CC, CN, ER,
 AR	-2447-06525	America/Argentina/Salta	Salta (SA, LP, NQ, RN)
 AR	-2411-06518	America/Argentina/Jujuy	Jujuy (JY)
 AR	-2649-06513	America/Argentina/Tucuman	Tucuman (TM)
-AR	-2828-06547	America/Argentina/Catamarca	Catamarca (CT); Chubut (CH)
+AR	-2828-06547	America/Argentina/Catamarca	Catamarca (CT), Chubut (CH)
 AR	-2926-06651	America/Argentina/La_Rioja	La Rioja (LR)
 AR	-3132-06831	America/Argentina/San_Juan	San Juan (SJ)
 AR	-3253-06849	America/Argentina/Mendoza	Mendoza (MZ)
@@ -87,7 +87,7 @@ BN	+0456+11455	Asia/Brunei
 BO	-1630-06809	America/La_Paz
 BQ	+120903-0681636	America/Kralendijk
 BR	-0351-03225	America/Noronha	Atlantic islands
-BR	-0127-04829	America/Belem	Para (east); Amapa
+BR	-0127-04829	America/Belem	Para (east), Amapa
 BR	-0343-03830	America/Fortaleza	Brazil (northeast: MA, PI, CE, RN, PB)
 BR	-0803-03454	America/Recife	Pernambuco
 BR	-0712-04812	America/Araguaina	Tocantins
@@ -107,21 +107,21 @@ BT	+2728+08939	Asia/Thimphu
 BW	-2439+02555	Africa/Gaborone
 BY	+5354+02734	Europe/Minsk
 BZ	+1730-08812	America/Belize
-CA	+4734-05243	America/St_Johns	Newfoundland; Labrador (southeast)
-CA	+4439-06336	America/Halifax	Atlantic - NS (most areas); PE
+CA	+4734-05243	America/St_Johns	Newfoundland, Labrador (SE)
+CA	+4439-06336	America/Halifax	Atlantic - NS (most areas), PE
 CA	+4612-05957	America/Glace_Bay	Atlantic - NS (Cape Breton)
 CA	+4606-06447	America/Moncton	Atlantic - New Brunswick
 CA	+5320-06025	America/Goose_Bay	Atlantic - Labrador (most areas)
 CA	+5125-05707	America/Blanc-Sablon	AST - QC (Lower North Shore)
-CA	+4339-07923	America/Toronto	Eastern - ON, QC (most areas)
+CA	+4339-07923	America/Toronto	Eastern - ON & QC (most areas)
 CA	+6344-06828	America/Iqaluit	Eastern - NU (most areas)
-CA	+484531-0913718	America/Atikokan	EST - ON (Atikokan); NU (Coral H)
-CA	+4953-09709	America/Winnipeg	Central - ON (west); Manitoba
+CA	+484531-0913718	America/Atikokan	EST - ON (Atikokan), NU (Coral H)
+CA	+4953-09709	America/Winnipeg	Central - ON (west), Manitoba
 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); NT (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	+682059-1334300	America/Inuvik	Mountain - NT (west)
 CA	+4906-11631	America/Creston	MST - BC (Creston)
@@ -207,8 +207,8 @@ HT	+1832-07220	America/Port-au-Prince
 HU	+4730+01905	Europe/Budapest
 ID	-0610+10648	Asia/Jakarta	Java, Sumatra
 ID	-0002+10920	Asia/Pontianak	Borneo (west, central)
-ID	-0507+11924	Asia/Makassar	Borneo (east, south); Sulawesi/Celebes, Bali, Nusa Tengarra; Timor (west)
-ID	-0232+14042	Asia/Jayapura	New Guinea (West Papua / Irian Jaya); Malukus/Moluccas
+ID	-0507+11924	Asia/Makassar	Borneo (east, south), Sulawesi/Celebes, Bali, Nusa Tengarra, Timor (west)
+ID	-0232+14042	Asia/Jayapura	New Guinea (West Papua / Irian Jaya), Malukus/Moluccas
 IE	+5320-00615	Europe/Dublin
 IL	+314650+0351326	Asia/Jerusalem
 IM	+5409-00428	Europe/Isle_of_Man
@@ -355,7 +355,7 @@ 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); N 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
@@ -418,7 +418,7 @@ US	+470659-1011757	America/North_Dakota/Center	Central - ND (Oliver)
 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	+433649-1161209	America/Boise	Mountain - ID (south), OR (east)
 US	+332654-1120424	America/Phoenix	MST - AZ (except Navajo)
 US	+340308-1181434	America/Los_Angeles	Pacific
 US	+611305-1495401	America/Anchorage	Alaska (most areas)