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Update time zone data files to tzdata release 2026e.

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Canada's Northwest Territories will move to permanent UTC-06 on
2026-11-01.  For now, assume their TZ abbreviation will be CST from
that time forward.  This affects only America/Inuvik as the rest of
the territory is covered by America/Edmonton, for which the
equivalent change was released in 2026c.

Manitoba (America/Winnipeg) will move to permanent UTC-05 on
2026-10-31.  For now, assume their TZ abbreviation will be EST
from that time forward.

(Upstream notes that more changes may be needed soon if smaller
jurisdictions choose to break away from what these have done,
but for now the plan is wait-and-see.)

Historical corrections for Colombia, Iran, and Ireland.

The backward-compatibility zone names EST5EDT, CST6CDT, MST7MDT, and
PST8PDT now conform better to POSIX.  For example, EST5EDT now always
uses the abbreviation "EST" for standard time (now always 5 hours
behind UTC) and "EDT" for daylight saving time, whereas it formerly
had different UT offsets before standard time was introduced and
sometimes used abbreviations like "LMT", "EWT" and "EPT", all contrary
to POSIX.  Also, though not specified by POSIX these names now use US
federal rules rather than rules of specific places like New York,
reverting to 2024a behavior.  This change affects only timestamps
before 1966-10-30 at 01:00 standard time.

Backpatch-through: 14
This commit is contained in:
Tom Lane
2026-09-30 17:28:14 -04:00
parent a78719fb12
commit 9e73b2095f
1 changed files with 37 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
src/timezone/data/tzdata.zi
View File

@@ -1,4 +1,4 @@
# version 2026c
# version 2026e
# redo posix_only
# This zic input file is in the public domain.
R d 1916 o - Jun 14 23s 1 S
@@ -264,7 +264,7 @@ R i 1977 o - Mar 21 23 1 -
R i 1977 o - O 20 24 0 -
R i 1978 o - Mar 24 24 1 -
R i 1978 o - Au 5 1 0 -
R i 1979 o - May 26 24 1 -
R i 1979 o - May 26 0 1 -
R i 1979 o - S 18 24 0 -
R i 1980 o - Mar 20 24 1 -
R i 1980 o - S 22 24 0 -
@@ -1863,7 +1863,7 @@ R x 2019 ma - Ap Su>=2 3u 0 -
R x 2019 2021 - S Su>=2 4u 1 -
R x 2022 o - S Su>=9 4u 1 -
R x 2023 ma - S Su>=2 4u 1 -
R CO 1992 o - May 3 0 1 -
R CO 1992 o - May 2 0 1 -
R CO 1993 o - F 6 24 0 -
R EC 1992 o - N 28 0 1 -
R EC 1993 o - F 5 0 0 -
@@ -1959,6 +1959,19 @@ R U 2005 o - Mar 27 2 0 -
R U 2005 o - O 9 2 1 -
R U 2006 2015 - Mar Su>=8 2 0 -
R U 2006 2014 - O Su>=1 2 1 -
R US 1918 1919 - Mar lastSu 2 1 D
R US 1918 1919 - O lastSu 2 0 S
R US 1942 o - F 9 2 1 D
R US 1945 o - Au 14 23u 1 D
R US 1945 o - S 30 2 0 S
R US 1967 2006 - O lastSu 2 0 S
R US 1967 1973 - Ap lastSu 2 1 D
R US 1974 o - Ja 6 2 1 D
R US 1975 o - F lastSu 2 1 D
R US 1976 1986 - Ap lastSu 2 1 D
R US 1987 2006 - Ap Su>=1 2 1 D
R US 2007 ma - Mar Su>=8 2 1 D
R US 2007 ma - N Su>=1 2 0 S
Z Africa/Abidjan -0:16:8 - LMT 1912
0 - GMT
Z Africa/Algiers 0:12:12 - LMT 1891 Mar 16
@@ -2051,7 +2064,7 @@ Z Africa/Windhoek 1:8:24 - LMT 1892 F 8
2 1 SAST 1943 Mar 21 2
2 - SAST 1990 Mar 21
2 NA %s
Z America/Adak 12:13:22 - LMT 1867 O 19 12:44:35
Z America/Adak 12:13:22 - LMT 1867 O 19 0:31:13u
-11:46:38 - LMT 1900 Au 20 12
-11 - NST 1942
-11 u N%sT 1946
@@ -2060,7 +2073,7 @@ Z America/Adak 12:13:22 - LMT 1867 O 19 12:44:35
-11 u B%sT 1983 O 30 2
-10 u AH%sT 1983 N 30
-10 u H%sT
Z America/Anchorage 14:0:24 - LMT 1867 O 19 14:31:37
Z America/Anchorage 14:0:24 - LMT 1867 O 19 0:31:13u
-9:59:36 - LMT 1900 Au 20 12
-10 - AST 1942
-10 u A%sT 1967 Ap
@@ -2360,7 +2373,7 @@ Z America/Detroit -5:32:11 - LMT 1905
Z America/Edmonton -7:33:52 - LMT 1906 S
-7 Ed M%sT 1987
-7 C M%sT 2026 Jun 18
-7 1 MDT 2026 N 1 2
-7 C MDT 2026 N 1 2
-6 - CST
Z America/Eirunepe -4:39:28 - LMT 1914
-5 B %z 1988 S 12
@@ -2502,7 +2515,9 @@ Z America/Indiana/Winamac -5:46:25 - LMT 1883 N 18 18u
Z America/Inuvik 0 - -00 1953
-8 Y P%sT 1979 Ap lastSu 2
-7 Y M%sT 1980
-7 C M%sT
-7 C M%sT 2026 Au 21
-7 C MDT 2026 N 1 2
-6 - CST
Z America/Iqaluit 0 - -00 1942 Au
-5 Y E%sT 1999 O 31 2
-6 C C%sT 2000 O 29 2
@@ -2512,7 +2527,7 @@ Z America/Jamaica -5:7:10 - LMT 1890
-5 - EST 1974
-5 u E%sT 1984
-5 - EST
Z America/Juneau 15:2:19 - LMT 1867 O 19 15:33:32
Z America/Juneau 15:2:19 - LMT 1867 O 19 0:31:13u
-8:57:41 - LMT 1900 Au 20 12
-8 - PST 1942
-8 u P%sT 1946
@@ -2596,7 +2611,7 @@ Z America/Merida -5:58:28 - LMT 1922 Ja 1 6u
-6 - CST 1981 D 26 2
-5 - EST 1982 N 2 2
-6 m C%sT
Z America/Metlakatla 15:13:42 - LMT 1867 O 19 15:44:55
Z America/Metlakatla 15:13:42 - LMT 1867 O 19 0:31:13u
-8:46:18 - LMT 1900 Au 20 12
-8 - PST 1942
-8 u P%sT 1946
@@ -2650,7 +2665,7 @@ Z America/New_York -4:56:2 - LMT 1883 N 18 17u
-5 u E%sT 1946
-5 NY E%sT 1967
-5 u E%sT
Z America/Nome 12:58:22 - LMT 1867 O 19 13:29:35
Z America/Nome 12:58:22 - LMT 1867 O 19 0:31:13u
-11:1:38 - LMT 1900 Au 20 12
-11 - NST 1942
-11 u N%sT 1946
@@ -2788,7 +2803,7 @@ Z America/Scoresbysund -1:27:52 - LMT 1916 Jul 28
-2 c %z 1981 Mar 29
-1 E %z 2024 Mar 31
-2 E %z
Z America/Sitka 14:58:47 - LMT 1867 O 19 15:30
Z America/Sitka 14:58:47 - LMT 1867 O 19 0:31:13u
-9:1:13 - LMT 1900 Au 20 12
-8 - PST 1942
-8 u P%sT 1946
@@ -2845,7 +2860,7 @@ Z America/Toronto -5:17:32 - LMT 1895
Z America/Vancouver -8:12:28 - LMT 1884
-8 Va P%sT 1987
-8 C P%sT 2026 Mar 9
-8 1 PDT 2026 N 1 2
-8 C PDT 2026 N 1 2
-7 - MST
Z America/Whitehorse -9:0:12 - LMT 1900 Au 20
-9 Y Y%sT 1965
@@ -2855,8 +2870,10 @@ Z America/Whitehorse -9:0:12 - LMT 1900 Au 20
-7 - MST
Z America/Winnipeg -6:28:36 - LMT 1887 Jul 16
-6 W C%sT 2006
-6 C C%sT
Z America/Yakutat 14:41:5 - LMT 1867 O 19 15:12:18
-6 C C%sT 2026 O 31
-6 C CDT 2026 N 1 2
-5 - EST
Z America/Yakutat 14:41:5 - LMT 1867 O 19 0:31:13u
-9:18:55 - LMT 1900 Au 20 12
-9 - YST 1942
-9 u Y%sT 1946
@@ -3457,6 +3474,8 @@ Z Australia/Perth 7:43:24 - LMT 1895 D
Z Australia/Sydney 10:4:52 - LMT 1895 F
10 AU AE%sT 1971
10 AN AE%sT
Z CST6CDT -6 US C%sT
Z EST5EDT -5 US E%sT
Z Etc/GMT 0 - GMT
Z Etc/GMT+1 -1 - %z
Z Etc/GMT+10 -10 - %z
@@ -3553,6 +3572,8 @@ Z Europe/Dublin -0:25:21 - LMT 1880 Au 2
-0:25:21 - DMT 1916 May 21 2s
-0:25:21 1 IST 1916 O 1 2s
0 G %s 1921 D 6
0 G GMT/IST 1925 S Su>=16 2s
0 - GMT 1926
0 G GMT/IST 1940 F 25 2s
0 1 IST 1946 O 6 2s
0 - GMT 1947 Mar 16 2s
@@ -3807,6 +3828,8 @@ Z Indian/Maldives 4:54 - LMT 1880
5 - %z
Z Indian/Mauritius 3:50 - LMT 1907
4 MU %z
Z MST7MDT -7 US M%sT
Z PST8PDT -8 US P%sT
Z Pacific/Apia 12:33:4 - LMT 1892 Jul 5
-11:26:56 - LMT 1911
-11:30 - %z 1950
@@ -3937,7 +3960,6 @@ L America/Noronha Brazil/DeNoronha
L America/Sao_Paulo Brazil/East
L America/Manaus Brazil/West
L Europe/Brussels CET
L America/Chicago CST6CDT
L America/Halifax Canada/Atlantic
L America/Winnipeg Canada/Central
L America/Toronto Canada/Eastern
@@ -3951,7 +3973,6 @@ L Pacific/Easter Chile/EasterIsland
L America/Havana Cuba
L Europe/Athens EET
L America/Panama EST
L America/New_York EST5EDT
L Africa/Cairo Egypt
L Europe/Dublin Eire
L Etc/GMT Etc/GMT+0
@@ -3977,7 +3998,6 @@ L Pacific/Kwajalein Kwajalein
L Africa/Tripoli Libya
L Europe/Brussels MET
L America/Phoenix MST
L America/Denver MST7MDT
L America/Tijuana Mexico/BajaNorte
L America/Mazatlan Mexico/BajaSur
L America/Mexico_City Mexico/General
@@ -4175,6 +4195,5 @@ L Atlantic/Faroe Atlantic/Faeroe
L Europe/Kyiv Europe/Kiev
L Asia/Nicosia Europe/Nicosia
L Pacific/Honolulu HST
L America/Los_Angeles PST8PDT
L Pacific/Guadalcanal Pacific/Ponape
L Pacific/Port_Moresby Pacific/Truk