What time is it in Seoul when it's 9 AM in Zurich?

4:00 PM — as of 2 October 2026. Seoul is 7 hours ahead of Zurich.

Does the time difference between Zurich and Seoul change?

Yes. In 2026 it's 8 hours or 7 hours, depending on the date, because only Zurich changes its clocks.

What's the best time for a call between Zurich and Seoul?

Between 09:00 and 10:00 Zurich time, when both cities are in working hours (09:00–17:00).

What time zones are Zurich and Seoul in?

Zurich uses Europe/Zurich (UTC+2 today); Seoul uses Asia/Seoul (UTC+9 today).

Time difference between Zurich and Seoul

Seoul is 7 hours ahead of Zurich. When it's 9:00 in Zurich, it's 16:00 in Seoul.

From

Seoul is 7 hours ahead of Zurich.

On Friday, 2 October 2026, 09:00 in Zurich is 16:00 in Seoul. Zurich is UTC+2; Seoul is UTC+9.

The gap through 2026

1 Jan – 29 MarSeoul is 8 hours ahead of Zurich.
29 Mar – 25 OctSeoul is 7 hours ahead of Zurich.
25 Oct – 31 DecSeoul is 8 hours ahead of Zurich.

Zurich moves its clocks forward on 29 March (UTC+1 → UTC+2).
Zurich moves its clocks back on 25 October (UTC+2 → UTC+1).

Zurich to Seoul, hour by hour

On Friday 2 October.

Zurich	Seoul
07:00 Early morning	14:00 Working hours
08:00 Early morning	15:00 Working hours
09:00 Working hours	16:00 Working hours
10:00 Working hours	17:00 Evening
11:00 Working hours	18:00 Evening
12:00 Working hours	19:00 Evening
13:00 Working hours	20:00 Evening
14:00 Working hours	21:00 Evening
15:00 Working hours	22:00 Sleeping hours
16:00 Working hours	23:00 Sleeping hours
17:00 Evening	00:00+1 Sleeping hours
18:00 Evening	01:00+1 Sleeping hours
19:00 Evening	02:00+1 Sleeping hours
20:00 Evening	03:00+1 Sleeping hours
21:00 Evening	04:00+1 Sleeping hours
22:00 Sleeping hours	05:00+1 Sleeping hours

Daylight saving in 2026

Zurich moves its clocks forward on Sunday 29 March (UTC+1 → UTC+2).
Zurich moves its clocks back on Sunday 25 October (UTC+2 → UTC+1).

1 Jan – 29 MarSeoul is 8 hours ahead of Zurich.
29 Mar – 25 OctSeoul is 7 hours ahead of Zurich.
25 Oct – 31 DecSeoul is 8 hours ahead of Zurich.

Best times for a call

Working hours (09:00–17:00) overlap for 1 hour: 09:00–10:00 in Zurich, which is 16:00–17:00 in Seoul.

Zurich 07:00Early morningSeoul 14:00Working hours
Zurich 08:00Early morningSeoul 15:00Working hours
Zurich 09:00Working hoursSeoul 16:00Working hours

How the time difference calculator works

The difference is each city's offset from UTC on the date you pick, subtracted. Offsets come from the IANA time zone database in your browser.

Because countries change their clocks on different dates — or not at all — the gap between two cities can change for a few weeks a year. The calculator lists every change in the year.

Examples

London is 5 hours ahead of New York for most of the year, but only 4 hours ahead for about three weeks in March and one week in late October.
Dubai doesn't change its clocks, so its gap to London is 4 hours in winter and 3 hours in summer.

Good for

Knowing when a colleague's day starts
Setting expectations for replies across time zones
Planning travel and jet lag

Frequently asked questions

What time is it in Seoul when it's 9 AM in Zurich?: 4:00 PM — as of 2 October 2026. Seoul is 7 hours ahead of Zurich.
Does the time difference between Zurich and Seoul change?: Yes. In 2026 it's 8 hours or 7 hours, depending on the date, because only Zurich changes its clocks.
What's the best time for a call between Zurich and Seoul?: Between 09:00 and 10:00 Zurich time, when both cities are in working hours (09:00–17:00).
What time zones are Zurich and Seoul in?: Zurich uses Europe/Zurich (UTC+2 today); Seoul uses Asia/Seoul (UTC+9 today).

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