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Diffstat (limited to 'util/locale_database/zonedata.py')
| -rw-r--r-- | util/locale_database/zonedata.py | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/util/locale_database/zonedata.py b/util/locale_database/zonedata.py new file mode 100644 index 0000000000..b73290f330 --- /dev/null +++ b/util/locale_database/zonedata.py @@ -0,0 +1,227 @@ +# Copyright (C) 2024 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0 + +"""Data relating to timezones and CLDR. + +This is not implicated in public APIs, so may safely be changed. +Contrast the enumdata.py, where public API is implicated. + +Scripts digesting CLDR data shall report the updates you need to make, +if any arise. + +The windowsIdList is a list of twoples (ID, offset), associating each +Windows-specific ID for a zone with that zone's offset from UTC, in +seconds. Entries are sorted in case-insensitive lexical order by +ID. If a script reports that it has found a Windows ID not listed +here, research the relevant zone's offset and add a new entry to the +list of twoples, preserving the ordering. Internet search engines and +timeanddate.com can help with researching the offset. Note that some +UTC offset zones (giving only the hour) are present in windowsIdList. +When adding an entry to windowsIdList, check whether its offset +corresponds to that of some entry in utcIdList; if not, add such an +entry. + +The utcIdList is a simple list of various UTC-offset names. Aside from +'UTC' itself, shared with windowsIdList, these include minutes in +their offsets even when they are whole hour offsets. The list contains +the UTC-equivalents of all offsets seen in the windowsIdList, plus the +whole hours out to ±14 hours, the two verbose forms of UTC±00:00 and +any legacy entries from past Windows zone offsets. Entries should not +be removed, even if the relevant Windows ID becomes obsolete or +switches to a different offset, as they make up the available zones of +the UTC back-end. (That recognizes other offset zones, and its +is-available check will accept them, but it leaves them out of its +list. There are, after all, thousands of possible offset zones, but +relatively few are widely used.) + +Note: -00:00 (without the UTC prefix) was introduced in RFC3339 as a +way to indicate that a date-time has been converted to UTC but its use +should not be understood to say anything about the local time of the +origin of the message using it. However, ISO 8601 has, since 2000, +forbidden this as an offset suffix. The more recent compromise is to +use Z to convey the meaning RFC3339 gave to -00:00. So the use of +-00:00 as offset suffix should be avoided (and, by extension, likewise +for UTC-00:00 as a zone ID), but this suffix (and ID) should be +recognized when consuming data generated by other sources, for +backwards compatibility. + +""" + +# Do not remove IDs, as each entry is part of the API/behavior guarantee. +# IDs for the same offset shall be space-joined; list the preferred ID first. +utcIdList = ( + 'UTC-14:00', + 'UTC-13:00', + 'UTC-12:00', + 'UTC-11:00', + 'UTC-10:00', 'UTC-09:30', + 'UTC-09:00', + 'UTC-08:00', + 'UTC-07:00', + 'UTC-06:00', + 'UTC-05:00', 'UTC-04:30', + 'UTC-04:00', 'UTC-03:30', + 'UTC-03:00', + 'UTC-02:00', + 'UTC-01:00', + # UTC Goes first (among zero-offset) to be default: + 'UTC', 'UTC+00:00', 'UTC-00:00', + 'UTC+01:00', + 'UTC+02:00', + 'UTC+03:00', 'UTC+03:30', + 'UTC+04:00', 'UTC+04:30', + 'UTC+05:00', 'UTC+05:30', 'UTC+05:45', + 'UTC+06:00', 'UTC+06:30', + 'UTC+07:00', + 'UTC+08:00', 'UTC+08:30', 'UTC+08:45', + 'UTC+09:00', 'UTC+09:30', + 'UTC+10:00', 'UTC+10:30', + 'UTC+11:00', + 'UTC+12:00', 'UTC+12:45', + 'UTC+13:00', + 'UTC+14:00', +) + +# ( Windows Id, Offset Seconds ) +windowsIdList = ( + ('Afghanistan Standard Time', 16200), + ('Alaskan Standard Time', -32400), + ('Aleutian Standard Time', -36000), + ('Altai Standard Time', 25200), + ('Arab Standard Time', 10800), + ('Arabian Standard Time', 14400), + ('Arabic Standard Time', 10800), + ('Argentina Standard Time', -10800), + ('Astrakhan Standard Time', 14400), + ('Atlantic Standard Time', -14400), + ('AUS Central Standard Time', 34200), + ('Aus Central W. Standard Time', 31500), + ('AUS Eastern Standard Time', 36000), + ('Azerbaijan Standard Time', 14400), + ('Azores Standard Time', -3600), + ('Bahia Standard Time', -10800), + ('Bangladesh Standard Time', 21600), + ('Belarus Standard Time', 10800), + ('Bougainville Standard Time', 39600), + ('Canada Central Standard Time', -21600), + ('Cape Verde Standard Time', -3600), + ('Caucasus Standard Time', 14400), + ('Cen. Australia Standard Time', 34200), + ('Central America Standard Time', -21600), + ('Central Asia Standard Time', 21600), + ('Central Brazilian Standard Time', -14400), + ('Central Europe Standard Time', 3600), + ('Central European Standard Time', 3600), + ('Central Pacific Standard Time', 39600), + ('Central Standard Time', -21600), + ('Central Standard Time (Mexico)', -21600), + ('Chatham Islands Standard Time', 45900), + ('China Standard Time', 28800), + ('Cuba Standard Time', -18000), + ('Dateline Standard Time', -43200), + ('E. Africa Standard Time', 10800), + ('E. Australia Standard Time', 36000), + ('E. Europe Standard Time', 7200), + ('E. South America Standard Time', -10800), + ('Easter Island Standard Time', -21600), + ('Eastern Standard Time', -18000), + ('Eastern Standard Time (Mexico)', -18000), + ('Egypt Standard Time', 7200), + ('Ekaterinburg Standard Time', 18000), + ('Fiji Standard Time', 43200), + ('FLE Standard Time', 7200), + ('Georgian Standard Time', 14400), + ('GMT Standard Time', 0), + ('Greenland Standard Time', -10800), + ('Greenwich Standard Time', 0), + ('GTB Standard Time', 7200), + ('Haiti Standard Time', -18000), + ('Hawaiian Standard Time', -36000), + ('India Standard Time', 19800), + ('Iran Standard Time', 12600), + ('Israel Standard Time', 7200), + ('Jordan Standard Time', 7200), + ('Kaliningrad Standard Time', 7200), + ('Korea Standard Time', 32400), + ('Libya Standard Time', 7200), + ('Line Islands Standard Time', 50400), + ('Lord Howe Standard Time', 37800), + ('Magadan Standard Time', 36000), + ('Magallanes Standard Time', -10800), # permanent DST + ('Marquesas Standard Time', -34200), + ('Mauritius Standard Time', 14400), + ('Middle East Standard Time', 7200), + ('Montevideo Standard Time', -10800), + ('Morocco Standard Time', 0), + ('Mountain Standard Time', -25200), + ('Mountain Standard Time (Mexico)', -25200), + ('Myanmar Standard Time', 23400), + ('N. Central Asia Standard Time', 21600), + ('Namibia Standard Time', 3600), + ('Nepal Standard Time', 20700), + ('New Zealand Standard Time', 43200), + ('Newfoundland Standard Time', -12600), + ('Norfolk Standard Time', 39600), + ('North Asia East Standard Time', 28800), + ('North Asia Standard Time', 25200), + ('North Korea Standard Time', 30600), + ('Omsk Standard Time', 21600), + ('Pacific SA Standard Time', -10800), + ('Pacific Standard Time', -28800), + ('Pacific Standard Time (Mexico)', -28800), + ('Pakistan Standard Time', 18000), + ('Paraguay Standard Time', -14400), + ('Qyzylorda Standard Time', 18000), # a.k.a. Kyzylorda, in Kazakhstan + ('Romance Standard Time', 3600), + ('Russia Time Zone 10', 39600), + ('Russia Time Zone 11', 43200), + ('Russia Time Zone 3', 14400), + ('Russian Standard Time', 10800), + ('SA Eastern Standard Time', -10800), + ('SA Pacific Standard Time', -18000), + ('SA Western Standard Time', -14400), + ('Saint Pierre Standard Time', -10800), # New France + ('Sakhalin Standard Time', 39600), + ('Samoa Standard Time', 46800), + ('Sao Tome Standard Time', 0), + ('Saratov Standard Time', 14400), + ('SE Asia Standard Time', 25200), + ('Singapore Standard Time', 28800), + ('South Africa Standard Time', 7200), + ('South Sudan Standard Time', 7200), + ('Sri Lanka Standard Time', 19800), + ('Sudan Standard Time', 7200), # unless they mean South Sudan, +03:00 + ('Syria Standard Time', 7200), + ('Taipei Standard Time', 28800), + ('Tasmania Standard Time', 36000), + ('Tocantins Standard Time', -10800), + ('Tokyo Standard Time', 32400), + ('Tomsk Standard Time', 25200), + ('Tonga Standard Time', 46800), + ('Transbaikal Standard Time', 32400), # Yakutsk + ('Turkey Standard Time', 7200), + ('Turks And Caicos Standard Time', -14400), + ('Ulaanbaatar Standard Time', 28800), + ('US Eastern Standard Time', -18000), + ('US Mountain Standard Time', -25200), + ('UTC', 0), + # Lexical order: '+' < '-' + ('UTC+12', 43200), + ('UTC+13', 46800), + ('UTC-02', -7200), + ('UTC-08', -28800), + ('UTC-09', -32400), + ('UTC-11', -39600), + ('Venezuela Standard Time', -16200), + ('Vladivostok Standard Time', 36000), + ('Volgograd Standard Time', 14400), + ('W. Australia Standard Time', 28800), + ('W. Central Africa Standard Time', 3600), + ('W. Europe Standard Time', 3600), + ('W. Mongolia Standard Time', 25200), # Hovd + ('West Asia Standard Time', 18000), + ('West Bank Standard Time', 7200), + ('West Pacific Standard Time', 36000), + ('Yakutsk Standard Time', 32400), + ('Yukon Standard Time', -25200), # Non-DST Mountain Standard Time since 2020-11-01 +) |