Daylight Saving Time Checker

When do the clocks change next in your time zone, and which way?

SeoulTime zone
Not observedDaylight saving
UTC+09:00Current UTC offset
Next clock change
none

Seoul keeps the same offset all year round. No clock changes are scheduled in the next 13 months.

About the Daylight Saving Time Checker

Twice a year, in roughly 70 countries, the clocks jump. Daylight saving time (DST) moves clocks forward one hour in spring and back one hour in autumn, and the dates differ by region: the United States and Canada change on the second Sunday in March and first Sunday in November, the European Union on the last Sundays of March and October, and Australia, New Zealand and Chile on their own southern-hemisphere schedules. Many countries, including most of Asia and Africa, do not change at all.

This checker reads the official time-zone database built into your browser, so it is always up to date with the rules for your location. Choose a zone (or let the tool detect yours) to see whether DST is currently in effect, the exact local time of the next change, which direction the clocks move, and the change after that.

The tool is useful for travel planning, scheduling international calls in the weeks when regions are temporarily out of step, and simply remembering whether you gain or lose an hour of sleep this weekend.

How to use the Daylight Saving Time Checker

  1. Select your time zone from the list, or leave "Detect my time zone" to use your device setting.
  2. Read whether daylight saving time is currently in effect and your current UTC offset.
  3. Note the date, local time and direction of the next clock change, and the one after it.

Frequently asked questions

When does daylight saving time start and end in the US?

DST starts on the second Sunday in March at 2:00 AM (clocks go forward to 3:00 AM) and ends on the first Sunday in November at 2:00 AM (clocks go back to 1:00 AM). Hawaii and most of Arizona do not observe it.

When do the clocks change in the UK and Europe?

Clocks go forward on the last Sunday in March at 1:00 AM GMT and back on the last Sunday in October at 2:00 AM BST. The whole EU changes at the same instant (01:00 UTC).

Do I gain or lose an hour?

"Spring forward" means clocks skip ahead and you lose an hour of sleep. "Fall back" means clocks repeat an hour and you gain one.

Which countries do not use daylight saving time?

Most of Asia (including China, India, Japan and Korea), most of Africa, and large parts of South America keep standard time all year. Within the US, Arizona (except the Navajo Nation) and Hawaii do not change.