3 commits

Author	SHA1	Message	Date
Timothy Flynn	d50f5e14f8	LibUnicode: Fall back to GMT offset when a time zone name is unavailable ... The following table in TR-35 includes a web of fall back rules when the requested time zone style is unavailable: https://unicode.org/reports/tr35/tr35-dates.html#dfst-zone Conveniently, the subset of styles supported by ECMA-402 (and therefore LibUnicode) all either fall back to GMT offset or to a style that is unsupported but itself falls back to GMT offset.	2022-01-11 23:56:35 +01:00
Timothy Flynn	8d35563f28	LibUnicode: Implement TR-35's localized GMT offset formatting ... This adds an API to use LibTimeZone to convert a time zone such as "America/New_York" to a GMT offset string like "GMT-5" (short form) or "GMT-05:00" (long form).	2022-01-11 23:56:35 +01:00
Timothy Flynn	6d7d9dd324	LibUnicode: Do not assume time zones & meta zones have a 1-to-1 mapping ... The generator parses metaZones.json to form a mapping of meta zones to time zones (AKA "golden zone" in TR-35). This parser errantly assumed this was a 1-to-1 mapping.	2022-01-06 22:28:01 +01:00