TimeCubby.

A little clarity, wherever you are.

Daylight Saving Time Checker

Check daylight saving dates and other UTC offset changes by city and year. See when clocks jump forward, repeat an hour, or stay unchanged.

Your locations

The first location is your reference. Search a city or enter an IANA zone such as Europe/London.

    Choose a year

    Check daylight saving dates and clock changes

    See every UTC offset change in the selected year, including changes that are not seasonal daylight saving time. Each row shows the local clock reading immediately before the change boundary, the reading after it, and the exact UTC instant.

    A forward change skips local times; a backward change repeats them. Not every place changes by one hour. No changes means no published offset transition in that UTC calendar year, not that the place has never used daylight saving time.

    Dates supported: 2000–2100. Time-zone rules are checked weekly; future rules can change. All calculations use our server’s time-zone database, not the version installed in your browser.