Hi, I'm working on better time zone support for Remind and I have something that is ready for very very very early-adopters to look at and test.
You'll need to clone the Remind git repo from eg https://salsa.debian.org/dskoll/remind and switch to the branch "wip/timezone-support". Build from that branch. I've added a TZ keyword to the REM command, which you should follow with a time zone name. You can only use TZ if you also have an AT clause. Anyway, here's a little taste. Consider this REM command: REM Thursday AT 15:00 TZ Europe/Amsterdam MSG Something at 15:00 CEST (%2) My time zone is America/Toronto which is UTC-5 when standard time is in effect and UTC - 4 when daylight saving time is in effect. If I run Remind against the above command... ... on 2025-09-04, I get: Something at 15:00 CEST (at 9:00am) ... on 2025-10-30, I get: Something at 15:00 CEST (at 10:00am) ... on 2026-03-05, I get: Something at 15:00 CEST (at 9:00am) ... on 2026-03-12, I get: Something at 15:00 CEST (at 10:00am) As you can see, the difference in daylight saving time rules is automatically taken into account and everything Just Works (or at least... Just Works if your C library is high-quality...) Cases like moving things across day boundaries should work. For example: REM Fri AT 23:30 TZ America/Toronto +1000 SATISFY [$Td == 13] \ MSG Fri 13th @23:30 Eastern is %b %2 here SET a $T SET b $Tt MSG a = [a], b = [b] If we run that from the Europe/Amsterdam time zone, we get this: Fri 13th @23:30 Eastern is on Saturday, 14 February, 2026 at 5:30am here a = 2026-02-14, b = 05:30 Note that *within* a SATISFY expression, we see dates within the reminder's time zone (so 2026-02-13 is seen within SATISFY) but *outside* the REM command, the trigger date and time are automatically adjusted to local time. Adding time zone support required touching a lot of code and made Remind even messier internally. :) So I'm sure there might be a few edge-cases I've missed; please give it a test. Regards, Dianne.
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