London to Seoul: time difference and best times to meet

Seoul is 9 hours ahead of London. There is no overlap between a normal working day in each city, so one side has to take the call outside working hours.

By LemCall EditorialUpdated November 3, 2026

London

11:07

Europe/London

Seoul

20:07

Asia/Seoul

London and Seoul time difference

This live comparison uses the current time-zone rules for both cities, so it reflects daylight-saving changes as well as the usual London and Seoul clock gap. Set your working hours below to see the practical overlap before proposing a meeting.

Hour-by-hour overlap

Each row is one hour of the London day and the matching hour in Seoul. Adjust the working hours to match how your team actually works.

Day starts

Day ends

London	Seoul	Suitable?
12am	9am	Working hours in Seoul only
1am	10am	Working hours in Seoul only
2am	11am	Working hours in Seoul only
3am	12pm	Working hours in Seoul only
4am	1pm	Working hours in Seoul only
5am	2pm	Working hours in Seoul only
6am	3pm	Working hours in Seoul only
7am	4pm	Working hours in Seoul only
8am	5pm	Working hours in Seoul only
9am	6pm	Working hours in London only
10am	7pm	Working hours in London only
11am	8pm	Working hours in London only
12pm	9pm	Working hours in London only
1pm	10pm	Working hours in London only
2pm	11pm	Working hours in London only
3pm	12am	Working hours in London only
4pm	1am	Working hours in London only
5pm	2am	Working hours in London only

When the gap changes in the next twelve months

Sunday, March 28, 2027 — Seoul goes from 9 hours ahead of to 8 hours ahead of London.
Sunday, October 31, 2027 — Seoul goes from 8 hours ahead of to 9 hours ahead of London.

Recurring meetings set as a fixed clock time in one city will move by an hour for the other on these dates.

Public holidays to avoid

Dates where one side is off work while the other is not are the most common cause of no-shows on this route.

Monday, November 30, 2026 — Saint Andrew's Day — London is off, Seoul is working.
Friday, December 25, 2026 — Christmas Day and Christmas Day; both cities are off.
Monday, December 28, 2026 — St. Stephen's Day — London is off, Seoul is working.

London and Seoul have no shared working hours, so a recurring live meeting always costs someone their morning or their evening. Rotating the burden, or moving the update to written form, is usually the better answer.

Sending a booking link avoids the arithmetic entirely: each side picks a time in their own zone and both calendars get the correct local time, including after a daylight-saving change. See how LemCall handles cross-timezone bookings.

Frequently asked questions

What is the time difference between London and Seoul?: Seoul is currently 9 hours ahead of London. That changes to 8 hours ahead of on Sunday, March 28, 2027, when one side shifts for daylight saving.
When is the best time to schedule a meeting between London and Seoul?: There is no hour where both cities are inside normal working hours, so one side has to take the call early or late.
How many hours do London and Seoul overlap?: Zero, on a standard 9–18 working day in each city.
Does daylight saving change the London–Seoul gap?: Yes. Over the next twelve months the difference changes 2 times: Sunday, March 28, 2027 (9 hours ahead of becomes 8 hours ahead of); Sunday, October 31, 2027 (8 hours ahead of becomes 9 hours ahead of).
Are there public holidays that affect London–Seoul meetings?: Yes. The next is Monday, November 30, 2026 — a public holiday where London is, but a normal working day in Seoul.

Nearby pairs

Sources

1.IANA. Time Zone Database
2.Nager.Date. Public holidays API · Retrieved 2026-11-03