Ansan to London Time Difference
London is 8 hours behind Ansan. When it is noon in Ansan, it is 04:00 in London.
Seoul (UTC+9) → London (UTC+1)
🕐 Interactive Time Explorer
When it's 09:00 in Ansan, it's 01:00 in London
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Ansan & London◐ Extended Hours (7 hours)
✈️ Travel Information
Distance
8,874 km
Est. Flight Time
~11.4h
Time Difference
-8h
Work Hours Overlap
0h
None
🔴 Office Closed
No overlap available
No overlap
⏰ Quick Conversion
06:00
Ansan
22:00
London (-1)
09:00
Ansan
01:00
London
12:00
Ansan
04:00
London
15:00
Ansan
07:00
London
18:00
Ansan
10:00
London
21:00
Ansan
13:00
London
00:00
Ansan
16:00
London (-1)
03:00
Ansan
19:00
London (-1)
Frequently Asked Questions
How many hours is Ansan ahead of London?
London is 8 hours behind Ansan. When it is 12:00 noon in Ansan, it is 04:00 in London. Ansan operates on Asia/Seoul (UTC+9), while London uses Europe/London (UTC+1).
What is the best time to call London from Ansan?
There is 1 hour of overlapping business time (9 AM–5 PM) between Ansan and London. The best window is 17:00–18:00 Ansan time (09:00–10:00 in London).
Does the Ansan to London time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between Ansan and London
The distance between Ansan and London is approximately 8,874 km. A direct flight typically takes around 11.4 hours. Your arrival clock will show local London time — use our Flight Time Calculator to predict exact arrival times.