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Asked: 2026-05-26T20:14:53+00:00

I realize that you can check if a Date is inDaylightTime , but how

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I realize that you can check if a Date is inDaylightTime, but how can I determine when (or if) that Date switches to and from DST? I can iterate over every day and check if it’s inDaylightTime, but is there a cleaner solution/method?

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  1. Editorial Team

    I would suggest using Joda Time – its DateTimeZone class has nextTransition and previousTransition methods.

    Note that transitions can occur for reasons other than DST – a change in standard time, or perhaps a change in the name of the zone interval. But that’s how you’d find out, anyway 🙂

    (Joda Time is a much better date and time library to start with, to be honest.)

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