Daylight Saving Time Checker

Check whether daylight saving time is in effect in any time zone, and find the exact dates it starts and ends this year.

How it works: the zone's offset on your date is compared with its standard-time offset (the smaller of its January and July offsets, read via Intl). The next change is found by scanning forward hour by hour, then narrowing to the exact minute.

Try next: Time Zone Converter · World Clock · UTC Converter