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Time difference

Seoul to London time difference

London is 8h behind Seoul (as of 2026-09-30).

Seoul does not use daylight saving time. London does, so the gap changes twice a year.

Check this pair in the DST Drift Checker

Every gap change in 2026 and 2027

Gap means how far London is from Seoul. Times are local at the moment the new gap starts.

2026

Seoul timeLondon timeGap
Sun, Mar 29, 10:00Sun, Mar 29, 02:009h behind to 8h behind (shrinks)
Sun, Oct 25, 10:00Sun, Oct 25, 01:008h behind to 9h behind (grows)

2027

Seoul timeLondon timeGap
Sun, Mar 28, 10:00Sun, Mar 28, 02:009h behind to 8h behind (shrinks)
Sun, Oct 31, 10:00Sun, Oct 31, 01:008h behind to 9h behind (grows)

Business hours overlap

  • 9h behind: Working days of 9:00 to 18:00: no shared hours. Working days of 8:00 to 20:00: 3h shared (Seoul 17:00 to 20:00 is London 08:00 to 11:00).
  • 8h behind: Working days of 9:00 to 18:00: 1h shared (Seoul 17:00 to 18:00 is London 09:00 to 10:00). Working days of 8:00 to 20:00: 4h shared (Seoul 16:00 to 20:00 is London 08:00 to 12:00).

FAQ

What is the time difference between Seoul and London?

London is 9h behind from Jan 1, 2026, then 8h behind from Mar 29, 2026, then 9h behind from Oct 25, 2026, then 8h behind from Mar 28, 2027, then 9h behind from Oct 31, 2027. The exact number depends on daylight saving time.

When does the time difference between Seoul and London change?

It changes on Mar 29, 2026, Oct 25, 2026, Mar 28, 2027, Oct 31, 2027 (dates in Seoul time).

What are good meeting times for Seoul and London?

Working days of 9:00 to 18:00: no shared hours. Working days of 8:00 to 20:00: 3h shared (Seoul 17:00 to 20:00 is London 08:00 to 11:00). Check the table above because the gap moves on the dates listed.

Related pairs

Data comes from the IANA time zone database as built into Node.js. Later rule changes by governments can move these dates.

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