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Time difference between Seoul and London

London is 8 hours behind Seoul

Seoul, South Korea is UTC+9 · London, the United Kingdom is UTC — on standard time

The gap is not the same all year

Every converter gives one number for this pair. That number is right for most of the year and wrong for part of it, because Seoul does not change its clocks and London goes forward on the last Sunday in March and back on the last Sunday in October.

Seoul / London clocksDifferenceHow long
standard / summer8 hours behindabout 30 weeks
standard / standard9 hours behindabout 22 weeks

Seoul stays put all year while London moves, so the gap changes twice a year from London's side alone. A recurring meeting set in Seoul's calendar will drift by an hour without anyone touching it.

When they can both be at their desks

Nine-to-five in Seoul and nine-to-five in London do not overlap at all. With 8 hours between them, one side is always outside working hours, and the practical question is which side takes the early start or the late finish rather than when to meet.

Seoul to London, hour by hour

SeoulLondon
12:00 AM4:00 PM (previous day)
1:00 AM5:00 PM (previous day)
2:00 AM6:00 PM (previous day)
3:00 AM7:00 PM (previous day)
4:00 AM8:00 PM (previous day)
5:00 AM9:00 PM (previous day)
6:00 AM10:00 PM (previous day)
7:00 AM11:00 PM (previous day)
8:00 AM12:00 AM
9:00 AM1:00 AM
10:00 AM2:00 AM
11:00 AM3:00 AM
12:00 PM4:00 AM
1:00 PM5:00 AM
2:00 PM6:00 AM
3:00 PM7:00 AM
4:00 PM8:00 AM
5:00 PM9:00 AM
6:00 PM10:00 AM
7:00 PM11:00 AM
8:00 PM12:00 PM
9:00 PM1:00 PM
10:00 PM2:00 PM
11:00 PM3:00 PM

On the usual gap of 8 hours.

Frequently asked questions

What is the time difference between Seoul and London?

London is 8 hours behind Seoul for most of the year. It is not the same all year — there is one other gap, because Seoul does not change its clocks and London goes forward on the last Sunday in March and back on the last Sunday in October.

Is London ahead of Seoul?

No — London is 8 hours behind. Seoul is UTC+9 and London is UTC on standard time.

What time is 9 AM in Seoul in London?

1:00 AM, on the usual gap.

When can Seoul and London meet?

Nine-to-five in Seoul and nine-to-five in London do not overlap at all. One side has to take the call outside working hours, and with 8 hours between them it is worth deciding in advance which side that is.

Other pairs

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