s/Whitehose/Whitehorse/ Don't be a hoser, eh?
—Doug Sent via the Samsung Galaxy S22 Ultra 5G, an AT&T 5G smartphone Get Outlook for Android<https://aka.ms/AAb9ysg> ________________________________ From: Paul Eggert via tz <[email protected]> Sent: Thursday, 27 August 2026 15:34:10 To: [email protected] <[email protected]> Subject: [tz] [PROPOSED] Document Canada/{Pacific,Mountain} glitches * NEWS: Document 2026b and 2026c changes to the backward compatibility links Canada/Pacific and Canada/Mountain. They will now use the abbreviations MST and CST, respectively, for affected timestamps. That’s confusing, and is an argument for using numeric abbreviations instead, but for now just document the situation. These old names became obsolescent in 1993 and are little used. --- NEWS | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/NEWS b/NEWS index cca58326..b6b57a78 100644 --- a/NEWS +++ b/NEWS @@ -75,6 +75,11 @@ Release 2026c - 2026-07-08 10:23:58 -0700 02:00 instead, for the same reason we introduced a similarly temporary hack for British Columbia in 2026b. + As the change affects both America/Edmonton and its backward + compatibility link, the obsolescent setting TZ="Canada/Mountain" + will now use the abbreviation CST for affected timestamps, + akin to TZ="Canada/Pacific" behavior introduced in 2026b. + Although another TZDB release will likely be needed soon because Northwest Territories will likely follow Alberta, the legal formalities have not yet taken place. @@ -137,6 +142,17 @@ Release 2026b - 2026-04-22 23:06:43 -0700 limitation in CLDR 48.1 (2026-01-08). This temporary hack is planned to be removed after CLDR is fixed. + To match longstanding practice for -07 standard time in North + America, such as for America/Dawson, America/Dawson_Creek, + America/Fort_Nelson and America/Whitehose, affected BC + timestamps use the abbreviation MST. As the change affects both + America/Vancouver and its backward compatibility link, the + obsolescent setting TZ="Canada/Pacific" will now use the + abbreviation MST. Future TZDB releases may change the + abbreviation if something else becomes popular across areas + observing -07, and may change it to "-07" if no alphabetic + consensus emerges. + Changes to code zic no longer mishandles a last transition to a new time type. -- 2.55.0
