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Daylight saving creator left the chat.... (lemmy.world)
submitted 2 years ago by to c/programmerhumor@lemmy.ml
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[–] 1 point 2 years ago (1 child)

It depends. If something needs to happen in local time (like, always at the same time regardless of daylights savings for example) you should be storing times in local timezone

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  • [–] 2 points 2 years ago (1 child)

    Store in UTC with the tz offset and if you're using a modern tz library, that should handle it for you.

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  • [–] 2 points 2 years ago

    tz offset is really not enough. You'd need to save the time zone id and/or offset, to have you library calculate deviations such as daylight savings.

    Even that, that would break if the user moves and now what they setup is using their previous timezone.

    Basically, I'm saying that storing the offset works most of the time, but not all of the time.

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