Daylight Saving Time Dates
Find the daylight saving time changeover dates for a year.
When the clocks change
Many regions shift their clocks forward in spring and back in autumn for daylight saving time, and the exact dates change each year. This finds the changeover dates, so you know when the clocks go forward or back.
Find the daylight saving dates for a region and year.
A confusing, contested practice
Daylight saving shifts an hour of daylight from morning to evening in the lighter months, and while the idea is simple, the practice causes genuine confusion: the changeover dates differ between countries, not every region observes it, and the dates move each year, which is exactly why time zone conversions go wrong around the changeovers. The switches also disrupt sleep and schedules for a few days. The practice is increasingly debated, with some places moving to abolish it and keep one time year-round, so the rules are not even stable over time. Knowing the dates matters practically for the clock changes themselves, for scheduling across regions during the weeks when offsets are temporarily unusual, and for not being caught out twice a year when the clocks shift.
Daylight Saving Time Dates FAQ
Why do the daylight saving dates change each year?
The changeovers are tied to particular weekends rather than fixed dates, and they differ between countries, so the exact dates move annually.
Why does daylight saving cause scheduling problems?
Because regions change on different dates and some do not observe it at all, so the offset between two places can be temporarily unusual around the changeovers.
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