Seoul time to London time
London is 9 hours behind Seoul in January and 8 hours behind in July (Seoul GMT+9/UTC+09:00 in summer; London BST/UTC+01:00). Enter a Seoul time below to convert it, or leave it blank to see the current time in both cities.
How to use the Seoul to London time
- Type a Seoul time (24-hour) and optionally a date, or leave blank for now.
- Click Convert.
- Read the London time and the working-hours table.
Time difference between Seoul and London
London is 9 hours behind Seoul in January and 8 hours behind in July. London observes daylight saving time and Seoul does not, so the difference changes twice a year. Seoul uses Asia/Seoul time (UTC+09:00 in January, UTC+09:00 in July); London uses Europe/London (UTC+00:00 in January, UTC+01:00 in July).
Working week in Seoul and London
Seoul: Korea Standard Time, UTC+9 all year. Office hours 09:00–18:00, weekend Saturday–Sunday.
London: Office hours 09:00–17:30, weekend Saturday–Sunday. Clocks go forward on the last Sunday of March (BST, UTC+1) and back on the last Sunday of October (GMT).
Quick conversion table (summer difference)
| Seoul | London |
|---|---|
| 08:00 | 00:00 |
| 09:00 | 01:00 |
| 10:00 | 02:00 |
| 12:00 | 04:00 |
| 14:00 | 06:00 |
| 16:00 | 08:00 |
| 18:00 | 10:00 |
| 20:00 | 12:00 |
| 22:00 | 14:00 |
Table uses the July difference; the tool above applies the exact rule for any date.
Best time to call between Seoul and London
Within normal office hours (09:00–18:00) in both cities: 17:00–17:00 Seoul time. For a compromise outside that window, the fairest slots are the ones nearest each side's start or end of day, alternating who takes the inconvenient hour.
Reverse
Need the other direction? See London to Seoul, or the general time zone converter.
Frequently asked questions
How many hours ahead is London from Seoul?
London is 9 hours behind Seoul in January and 8 hours behind in July.
When it is 12:00 noon in Seoul, what time is it in London?
04:00 in summer (the same or previous day); use the tool for a specific date.
Does the converter handle daylight saving?
Yes, for the exact date you enter, using the IANA time-zone rules in your browser.
Privacy
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Last updated 2026-09-23.