Live Synchronized Time Difference
LondontoSeoulTime Difference
🇬🇧
London
United Kingdom (GMT)15:10:17UTC+0:00
🇰🇷
Seoul
South Korea (GMT+9)00:10:17UTC+9:00
Direct Distance8,857 km (5,503 miles)
Estimated Flight Time~10.9 hours
Business Overlap0 overlapping hours (9am–5pm)
Feasible Shoulder Hours Window
Recommended calling window between London and Seoul
Off-Peak Calling Window
London Time
7:00 AM – 12:00 PM
Seoul Time
4:00 PM – 9:00 PM
There are no overlapping 9-to-5 working hours between London and Seoul. The optimal compromise window falls during morning/evening shoulder periods (7:00 AM – 9:00 PM) when participants in both locations are awake.
24-Hour Schedule Conversion Matrix
Compare every hour of the day between London and Seoul.
Work (9am-5pm)ShoulderSleep / Off
| London Time (United Kingdom) | Seoul Time (South Korea) | Status & Recommendation |
|---|---|---|
| 00:00AM | 09:00AM | ⚪ Outside Work Hours |
| 01:00AM | 10:00AM | ⚪ Outside Work Hours |
| 02:00AM | 11:00AM | ⚪ Outside Work Hours |
| 03:00AM | 12:00PM | ⚪ Outside Work Hours |
| 04:00AM | 13:00PM | ⚪ Outside Work Hours |
| 05:00AM | 14:00PM | ⚪ Outside Work Hours |
| 06:00AM | 15:00PM | ⚪ Outside Work Hours |
| 07:00AM | 16:00PM | ⚪ Outside Work Hours |
| 08:00AM | 17:00PM | ⚪ Outside Work Hours |
| 09:00AM | 18:00PM | 🟡 Feasible (Shoulder Hour) |
| 10:00AM | 19:00PM | 🟡 Feasible (Shoulder Hour) |
| 11:00AM | 20:00PM | 🟡 Feasible (Shoulder Hour) |
| 12:00PM | 21:00PM | ⚪ Outside Work Hours |
| 13:00PM | 22:00PM | ⚪ Outside Work Hours |
| 14:00PM | 23:00PM | ⚪ Outside Work Hours |
| 15:00PM | 00:00AM | ⚪ Outside Work Hours |
| 16:00PM | 01:00AM | ⚪ Outside Work Hours |
| 17:00PM | 02:00AM | ⚪ Outside Work Hours |
| 18:00PM | 03:00AM | ⚪ Outside Work Hours |
| 19:00PM | 04:00AM | ⚪ Outside Work Hours |
| 20:00PM | 05:00AM | ⚪ Outside Work Hours |
| 21:00PM | 06:00AM | ⚪ Outside Work Hours |
| 22:00PM | 07:00AM | ⚪ Outside Work Hours |
| 23:00PM | 08:00AM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between London and Seoul?
Seoul is 9 hours ahead of London.
What is the best time to schedule a cross-border meeting between London and Seoul?
Because of the wide timezone separation, a compromise meeting window during early morning in one location and evening in the other is recommended.
Does daylight saving time (DST) affect the time difference between London and Seoul?
Yes. If either United Kingdom or South Korea observes seasonal Daylight Saving Time transitions, the offset difference shifts by one hour on scheduled transition dates.