On 2024-03-21 03:36, Corinna Vinschen via Cygwin-apps wrote:
On Mar 20 14:59, Brian Inglis via Cygwin-apps wrote:
On 2024-03-19 02:19, brian.ing...@systematicsw.ab.ca wrote:
On 2024-03-18 21:12, Matt Johnson-Pint via tz wrote:
I just learned that Ubuntu Noble (24.04) decided to intentionally
split the tzdata package. Old-style links such as US/Eastern are no
longer included by default, but are available in the tzdata-legacy
package instead.
Just thought I'd share. I wonder if other distributions / platforms
/ libraries will follow suit. What do y'all think?
See:
<https://bugs.launchpad.net/ubuntu/+source/tzdata/+bug/2058249>
<https://stackoverflow.com/questions/78180695/unrecognized-time-zone>
I've been looking at that to reduce Cygwin CI and embedded build server
setup overhead by limiting base install data to:
- only the zones in zonenow.tab;
- optionally those in zone1970.tab not in zonenow.tab;
- additionally those in zone.tab in backward, and/or backzone;
- possibly those not in zone.tab, only in backward, and/or backzone;
- additions those in posix subtree, or right subtree.
As tzdata maintainer, I would like to discuss on this list first, to take
advantage of a wide variety of experience in different environments with
different practices and requirements, before making more definite proposals
on the public list.
Please see the attached log for prioritized subsets of tzdata for consideration:
[...]
What would the impact on tzset conversion from Windows to Olson tzdb be?
We would probably have to add all of these in to any minimal install.
I think I looked at that somewhere, sometime, not too long ago.
We're generating the conversion from Windows to POSIX timezone via
the conversion table from unicode.org:
https://cygwin.com/cgit/newlib-cygwin/tree/winsup/utils/tzmap-from-unicode.org
Plus a few (7, actually) mappings the Unicode consortium missed in
the list (or maybe they are available in the meantime, needs checking).
This is the minimum list of timezone info we need in the tzdata DB.
I generated tzmap.h and generated differences since the last update cldr ~40.
I also searched in the latest for matches for each field attached as first.
I do not know if they will be of help as I see you have already looked at tzmap.
It looks as if the match might better prioritize country code over Windows
label.
--
Take care. Thanks, Brian Inglis Calgary, Alberta, Canada
La perfection est atteinte Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut
-- Antoine de Saint-Exupéry* additional zones - some may now be unnecessary as of latest CLDR 45-a3
current zones are matched by Windows label, country code, zone id
* { L"E. Europe Standard Time", L"", L"Asia/Nicosia" },
* { L"E. Europe Standard Time", L"CY", L"Asia/Nicosia" },
{ L"E. Europe Standard Time", L"", L"Europe/Chisinau" },
{ L"E. Europe Standard Time", L"MD", L"Europe/Chisinau" },
{ L"GTB Standard Time", L"CY", L"Asia/Nicosia Asia/Famagusta" },
* { L"Eastern Standard Time", L"TC", L"America/Grand_Turk" },
{ L"Eastern Standard Time", L"", L"America/New_York" },
{ L"Eastern Standard Time", L"BS", L"America/Nassau" },
{ L"Eastern Standard Time", L"CA", L"America/Toronto America/Iqaluit" },
{ L"Eastern Standard Time", L"US", L"America/New_York America/Detroit
America/Indiana/Petersburg America/Indiana/Vincennes America/Indiana/Winamac
America/Kentucky/Monticello America/Louisville" },
{ L"Eastern Standard Time", L"ZZ", L"EST5EDT" },
{ L"Turks And Caicos Standard Time", L"TC", L"America/Grand_Turk" },
{ L"Turks And Caicos Standard Time", L"", L"America/Grand_Turk" },
* { L"Egypt Standard Time", L"PS", L"Asia/Gaza Asia/Hebron" },
{ L"Egypt Standard Time", L"", L"Africa/Cairo" },
{ L"Egypt Standard Time", L"EG", L"Africa/Cairo" },
{ L"West Bank Standard Time", L"", L"Asia/Hebron" },
{ L"West Bank Standard Time", L"PS", L"Asia/Hebron Asia/Gaza" },
* { L"Greenwich Standard Time", L"EH", L"Africa/El_Aaiun" },
{ L"Greenwich Standard Time", L"", L"Atlantic/Reykjavik" },
{ L"Greenwich Standard Time", L"BF", L"Africa/Ouagadougou" },
{ L"Greenwich Standard Time", L"CI", L"Africa/Abidjan" },
{ L"Greenwich Standard Time", L"GH", L"Africa/Accra" },
{ L"Greenwich Standard Time", L"GL", L"America/Danmarkshavn" },
{ L"Greenwich Standard Time", L"GM", L"Africa/Banjul" },
{ L"Greenwich Standard Time", L"GN", L"Africa/Conakry" },
{ L"Greenwich Standard Time", L"GW", L"Africa/Bissau" },
{ L"Greenwich Standard Time", L"IS", L"Atlantic/Reykjavik" },
{ L"Greenwich Standard Time", L"LR", L"Africa/Monrovia" },
{ L"Greenwich Standard Time", L"ML", L"Africa/Bamako" },
{ L"Greenwich Standard Time", L"MR", L"Africa/Nouakchott" },
{ L"Greenwich Standard Time", L"SH", L"Atlantic/St_Helena" },
{ L"Greenwich Standard Time", L"SL", L"Africa/Freetown" },
{ L"Greenwich Standard Time", L"SN", L"Africa/Dakar" },
{ L"Greenwich Standard Time", L"TG", L"Africa/Lome" },
{ L"Morocco Standard Time", L"EH", L"Africa/El_Aaiun" },
* { L"Kaliningrad Standard Time", L"BY", L"Europe/Minsk" },
{ L"Kaliningrad Standard Time", L"", L"Europe/Kaliningrad" },
{ L"Kaliningrad Standard Time", L"RU", L"Europe/Kaliningrad" },
{ L"Belarus Standard Time", L"BY", L"Europe/Minsk" },
{ L"Belarus Standard Time", L"", L"Europe/Minsk" },
* { L"Kamchatka Standard Time", L"", L"Asia/Kamchatka" },
{ L"Russia Time Zone 11", L"", L"Asia/Kamchatka" },
* { L"Hawaiian Standard Time", L"TK", L"Pacific/Fakaofo" },
{ L"Hawaiian Standard Time", L"", L"Pacific/Honolulu" },
{ L"Hawaiian Standard Time", L"CK", L"Pacific/Rarotonga" },
{ L"Hawaiian Standard Time", L"PF", L"Pacific/Tahiti" },
{ L"Hawaiian Standard Time", L"US", L"Pacific/Honolulu" },
{ L"Hawaiian Standard Time", L"ZZ", L"Etc/GMT+10" },
{ L"UTC+13", L"TK", L"Pacific/Fakaofo" },
* { L"Mid-Atlantic Standard Time", L"", L"Atlantic/South_Georgia" },
{ L"UTC-02", L"GS", L"Atlantic/South_Georgia" },
* { L"SA Pacific Standard Time", L"HT", L"America/Port-au-Prince" },
{ L"SA Pacific Standard Time", L"", L"America/Bogota" },
{ L"SA Pacific Standard Time", L"BR", L"America/Rio_Branco America/Eirunepe"
},
{ L"SA Pacific Standard Time", L"CA", L"America/Coral_Harbour" },
{ L"SA Pacific Standard Time", L"CO", L"America/Bogota" },
{ L"SA Pacific Standard Time", L"EC", L"America/Guayaquil" },
{ L"SA Pacific Standard Time", L"JM", L"America/Jamaica" },
{ L"SA Pacific Standard Time", L"KY", L"America/Cayman" },
{ L"SA Pacific Standard Time", L"PA", L"America/Panama" },
{ L"SA Pacific Standard Time", L"PE", L"America/Lima" },
{ L"SA Pacific Standard Time", L"ZZ", L"Etc/GMT+5" },
{ L"Haiti Standard Time", L"HT", L"America/Port-au-Prince" },
{ L"Haiti Standard Time", L"", L"America/Port-au-Prince" },
* { L"South Africa Standard Time", L"LY", L"Africa/Tripoli" },
};
{ L"South Africa Standard Time", L"", L"Africa/Johannesburg" },
{ L"South Africa Standard Time", L"BI", L"Africa/Bujumbura" },
{ L"South Africa Standard Time", L"BW", L"Africa/Gaborone" },
{ L"South Africa Standard Time", L"CD", L"Africa/Lubumbashi" },
{ L"South Africa Standard Time", L"LS", L"Africa/Maseru" },
{ L"South Africa Standard Time", L"MW", L"Africa/Blantyre" },
{ L"South Africa Standard Time", L"MZ", L"Africa/Maputo" },
{ L"South Africa Standard Time", L"RW", L"Africa/Kigali" },
{ L"South Africa Standard Time", L"SZ", L"Africa/Mbabane" },
{ L"South Africa Standard Time", L"ZA", L"Africa/Johannesburg" },
{ L"South Africa Standard Time", L"ZM", L"Africa/Lusaka" },
{ L"South Africa Standard Time", L"ZW", L"Africa/Harare" },
{ L"South Africa Standard Time", L"ZZ", L"Etc/GMT-2" },
{ L"Libya Standard Time", L"", L"Africa/Tripoli" },
{ L"Libya Standard Time", L"LY", L"Africa/Tripoli" },
--- tzmap-cldr-42.h 2024-03-22 09:29:06.248366800 -0600
+++ tzmap-cldr-43.h 2024-03-22 09:29:18.388208900 -0600
@@ -95,11 +95,11 @@
{ L"Central Pacific Standard Time", L"ZZ", L"Etc/GMT-11" },
{ L"Central Standard Time", L"", L"America/Chicago" },
{ L"Central Standard Time", L"CA", L"America/Winnipeg America/Rainy_River
America/Rankin_Inlet America/Resolute" },
- { L"Central Standard Time", L"MX", L"America/Matamoros" },
+ { L"Central Standard Time", L"MX", L"America/Matamoros America/Ojinaga" },
{ L"Central Standard Time", L"US", L"America/Chicago America/Indiana/Knox
America/Indiana/Tell_City America/Menominee America/North_Dakota/Beulah
America/North_Dakota/Center America/North_Dakota/New_Salem" },
{ L"Central Standard Time", L"ZZ", L"CST6CDT" },
{ L"Central Standard Time (Mexico)", L"", L"America/Mexico_City" },
- { L"Central Standard Time (Mexico)", L"MX", L"America/Mexico_City
America/Bahia_Banderas America/Merida America/Monterrey" },
+ { L"Central Standard Time (Mexico)", L"MX", L"America/Mexico_City
America/Bahia_Banderas America/Merida America/Monterrey America/Chihuahua " },
{ L"Chatham Islands Standard Time", L"", L"Pacific/Chatham" },
{ L"Chatham Islands Standard Time", L"NZ", L"Pacific/Chatham" },
{ L"China Standard Time", L"", L"Asia/Shanghai" },
@@ -231,11 +231,11 @@
{ L"Morocco Standard Time", L"MA", L"Africa/Casablanca" },
{ L"Mountain Standard Time", L"", L"America/Denver" },
{ L"Mountain Standard Time", L"CA", L"America/Edmonton America/Cambridge_Bay
America/Inuvik America/Yellowknife" },
- { L"Mountain Standard Time", L"MX", L"America/Ojinaga" },
+ { L"Mountain Standard Time", L"MX", L"America/Ciudad_Juarez" },
{ L"Mountain Standard Time", L"US", L"America/Denver America/Boise" },
{ L"Mountain Standard Time", L"ZZ", L"MST7MDT" },
- { L"Mountain Standard Time (Mexico)", L"", L"America/Chihuahua" },
- { L"Mountain Standard Time (Mexico)", L"MX", L"America/Chihuahua
America/Mazatlan" },
+ { L"Mountain Standard Time (Mexico)", L"", L"America/Mazatlan" },
+ { L"Mountain Standard Time (Mexico)", L"MX", L"America/Mazatlan" },
{ L"Myanmar Standard Time", L"", L"Asia/Rangoon" },
{ L"Myanmar Standard Time", L"CC", L"Indian/Cocos" },
{ L"Myanmar Standard Time", L"MM", L"Asia/Rangoon" },
--- tzmap-cldr-44-1.h 2024-03-21 08:58:13.462059500 -0600
+++ tzmap-cldr-45-a3.h 2024-03-21 08:58:35.203692800 -0600
@@ -64,12 +64,11 @@
{ L"Central America Standard Time", L"NI", L"America/Managua" },
{ L"Central America Standard Time", L"SV", L"America/El_Salvador" },
{ L"Central America Standard Time", L"ZZ", L"Etc/GMT+6" },
- { L"Central Asia Standard Time", L"", L"Asia/Almaty" },
+ { L"Central Asia Standard Time", L"", L"Asia/Bishkek" },
{ L"Central Asia Standard Time", L"AQ", L"Antarctica/Vostok" },
{ L"Central Asia Standard Time", L"CN", L"Asia/Urumqi" },
{ L"Central Asia Standard Time", L"IO", L"Indian/Chagos" },
{ L"Central Asia Standard Time", L"KG", L"Asia/Bishkek" },
- { L"Central Asia Standard Time", L"KZ", L"Asia/Almaty Asia/Qostanay" },
{ L"Central Asia Standard Time", L"ZZ", L"Etc/GMT-6" },
{ L"Central Brazilian Standard Time", L"", L"America/Cuiaba" },
{ L"Central Brazilian Standard Time", L"BR", L"America/Cuiaba
America/Campo_Grande" },
@@ -94,7 +93,7 @@
{ L"Central Pacific Standard Time", L"VU", L"Pacific/Efate" },
{ L"Central Pacific Standard Time", L"ZZ", L"Etc/GMT-11" },
{ L"Central Standard Time", L"", L"America/Chicago" },
- { L"Central Standard Time", L"CA", L"America/Winnipeg America/Rainy_River
America/Rankin_Inlet America/Resolute" },
+ { L"Central Standard Time", L"CA", L"America/Winnipeg America/Rankin_Inlet
America/Resolute" },
{ L"Central Standard Time", L"MX", L"America/Matamoros America/Ojinaga" },
{ L"Central Standard Time", L"US", L"America/Chicago America/Indiana/Knox
America/Indiana/Tell_City America/Menominee America/North_Dakota/Beulah
America/North_Dakota/Center America/North_Dakota/New_Salem" },
{ L"Central Standard Time", L"ZZ", L"CST6CDT" },
@@ -133,7 +132,7 @@
{ L"Easter Island Standard Time", L"CL", L"Pacific/Easter" },
{ L"Eastern Standard Time", L"", L"America/New_York" },
{ L"Eastern Standard Time", L"BS", L"America/Nassau" },
- { L"Eastern Standard Time", L"CA", L"America/Toronto America/Iqaluit
America/Montreal America/Nipigon America/Pangnirtung America/Thunder_Bay" },
+ { L"Eastern Standard Time", L"CA", L"America/Toronto America/Iqaluit" },
{ L"Eastern Standard Time", L"US", L"America/New_York America/Detroit
America/Indiana/Petersburg America/Indiana/Vincennes America/Indiana/Winamac
America/Kentucky/Monticello America/Louisville" },
{ L"Eastern Standard Time", L"ZZ", L"EST5EDT" },
{ L"Eastern Standard Time (Mexico)", L"", L"America/Cancun" },
@@ -149,7 +148,7 @@
{ L"FLE Standard Time", L"FI", L"Europe/Helsinki" },
{ L"FLE Standard Time", L"LT", L"Europe/Vilnius" },
{ L"FLE Standard Time", L"LV", L"Europe/Riga" },
- { L"FLE Standard Time", L"UA", L"Europe/Kiev Europe/Uzhgorod
Europe/Zaporozhye" },
+ { L"FLE Standard Time", L"UA", L"Europe/Kiev" },
{ L"Fiji Standard Time", L"", L"Pacific/Fiji" },
{ L"Fiji Standard Time", L"FJ", L"Pacific/Fiji" },
{ L"GMT Standard Time", L"", L"Europe/London" },
@@ -190,7 +189,6 @@
{ L"Hawaiian Standard Time", L"", L"Pacific/Honolulu" },
{ L"Hawaiian Standard Time", L"CK", L"Pacific/Rarotonga" },
{ L"Hawaiian Standard Time", L"PF", L"Pacific/Tahiti" },
- { L"Hawaiian Standard Time", L"UM", L"Pacific/Johnston" },
{ L"Hawaiian Standard Time", L"US", L"Pacific/Honolulu" },
{ L"Hawaiian Standard Time", L"ZZ", L"Etc/GMT+10" },
{ L"India Standard Time", L"", L"Asia/Kolkata" },
@@ -230,7 +228,7 @@
{ L"Morocco Standard Time", L"EH", L"Africa/El_Aaiun" },
{ L"Morocco Standard Time", L"MA", L"Africa/Casablanca" },
{ L"Mountain Standard Time", L"", L"America/Denver" },
- { L"Mountain Standard Time", L"CA", L"America/Edmonton America/Cambridge_Bay
America/Inuvik America/Yellowknife" },
+ { L"Mountain Standard Time", L"CA", L"America/Edmonton America/Cambridge_Bay
America/Inuvik" },
{ L"Mountain Standard Time", L"MX", L"America/Ciudad_Juarez" },
{ L"Mountain Standard Time", L"US", L"America/Denver America/Boise" },
{ L"Mountain Standard Time", L"ZZ", L"MST7MDT" },
@@ -267,7 +265,7 @@
{ L"Pacific Standard Time", L"US", L"America/Los_Angeles" },
{ L"Pacific Standard Time", L"ZZ", L"PST8PDT" },
{ L"Pacific Standard Time (Mexico)", L"", L"America/Tijuana" },
- { L"Pacific Standard Time (Mexico)", L"MX", L"America/Tijuana
America/Santa_Isabel" },
+ { L"Pacific Standard Time (Mexico)", L"MX", L"America/Tijuana" },
{ L"Pakistan Standard Time", L"", L"Asia/Karachi" },
{ L"Pakistan Standard Time", L"PK", L"Asia/Karachi" },
{ L"Paraguay Standard Time", L"", L"America/Asuncion" },
@@ -383,7 +381,7 @@
{ L"Taipei Standard Time", L"", L"Asia/Taipei" },
{ L"Taipei Standard Time", L"TW", L"Asia/Taipei" },
{ L"Tasmania Standard Time", L"", L"Australia/Hobart" },
- { L"Tasmania Standard Time", L"AU", L"Australia/Hobart Australia/Currie
Antarctica/Macquarie" },
+ { L"Tasmania Standard Time", L"AU", L"Australia/Hobart Antarctica/Macquarie"
},
{ L"Tocantins Standard Time", L"", L"America/Araguaina" },
{ L"Tocantins Standard Time", L"BR", L"America/Araguaina" },
{ L"Tokyo Standard Time", L"", L"Asia/Tokyo" },
@@ -484,7 +482,7 @@
{ L"W. Mongolia Standard Time", L"MN", L"Asia/Hovd" },
{ L"West Asia Standard Time", L"", L"Asia/Tashkent" },
{ L"West Asia Standard Time", L"AQ", L"Antarctica/Mawson" },
- { L"West Asia Standard Time", L"KZ", L"Asia/Oral Asia/Aqtau Asia/Aqtobe
Asia/Atyrau" },
+ { L"West Asia Standard Time", L"KZ", L"Asia/Oral Asia/Almaty Asia/Aqtau
Asia/Aqtobe Asia/Atyrau Asia/Qostanay" },
{ L"West Asia Standard Time", L"MV", L"Indian/Maldives" },
{ L"West Asia Standard Time", L"TF", L"Indian/Kerguelen" },
{ L"West Asia Standard Time", L"TJ", L"Asia/Dushanbe" },
