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Time difference between Helsinki and Seoul

Seoul is 6 hours ahead of Helsinki

Helsinki, Finland is UTC+2 · Seoul, South Korea is UTC+9 — 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 Helsinki goes forward on the last Sunday in March and back on the last Sunday in October and Seoul does not change its clocks.

Helsinki / Seoul clocksDifferenceHow long
summer / standard6 hours aheadabout 30 weeks
standard / standard7 hours aheadabout 22 weeks

Seoul stays put all year while Helsinki moves, so a meeting fixed in Seoul's calendar shifts by an hour twice a year at Helsinki's end.

When they can both be at their desks

Nine-to-five in both cities overlaps for 2 hours — 9:00 AM to 11:00 AM in Helsinki, the same moment as 3:00 PM to 5:00 PM in Seoul.

Helsinki to Seoul, hour by hour

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

On the usual gap of 6 hours.

Frequently asked questions

What is the time difference between Helsinki and Seoul?

Seoul is 6 hours ahead of Helsinki for most of the year. It is not the same all year — there is one other gap, because Helsinki goes forward on the last Sunday in March and back on the last Sunday in October and Seoul does not change its clocks.

Is Seoul ahead of Helsinki?

Yes — Seoul is 6 hours ahead. Helsinki is UTC+2 and Seoul is UTC+9 on standard time.

What time is 9 AM in Helsinki in Seoul?

3:00 PM, on the usual gap.

When can Helsinki and Seoul meet?

Standard nine-to-five hours overlap for 2 hours: 9:00 AM–11:00 AM in Helsinki, which is 3:00 PM–5:00 PM in Seoul.

Other pairs

Every Helsinki pair · Every Seoul pair · All city pairs · Time zones by abbreviation