March 6, 2026
8:07 p.m.
On 2026-03-06 11:02, Robert Bastian wrote:
Our issue is not with abbreviations (-07/MST), and changing the abbreviation to MST will not fix the issue. ICU checks whether a rule applies (tm_isdst), and chooses the DST name if one does.
Unfortunately I'm not following. If the abbreviation is "MST" and tm_isdst==0, what doesn't work? Several timezones do exactly that already: America/Dawson, America/Whitehorse, America/Dawson_Creek, America/Fort_Nelson, America/Phoenix, America/Hermosillo. Many of these timezones made a change in a past year that is pretty much what America/Vancouver is doing this year. If they don't work why not? and if they do work then what's different in this new case?