London to Ulsan Time Difference
Ulsan is 8 hours ahead of London. When it is noon in London, it is 20:00 in Ulsan.
London (UTC+1) → Seoul (UTC+9)
🕐 Interactive Time Explorer
When it's 01:00 in London, it's 09:00 in Ulsan
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
London & Ulsan◐ Extended Hours (7 hours)
✈️ Travel Information
Distance
9,156 km
Est. Flight Time
~11.8h
Time Difference
+8h
Work Hours Overlap
0h
None
🔴 Office Closed
No overlap available
No overlap
⏰ Quick Conversion
06:00
London
14:00
Ulsan
09:00
London
17:00
Ulsan
12:00
London
20:00
Ulsan
15:00
London
23:00
Ulsan
18:00
London
02:00
Ulsan (+1)
21:00
London
05:00
Ulsan (+1)
00:00
London
08:00
Ulsan
03:00
London
11:00
Ulsan
Frequently Asked Questions
How many hours is London behind Ulsan?
Ulsan is 8 hours ahead of London. When it is 12:00 noon in London, it is 20:00 in Ulsan. London operates on Europe/London (UTC+1), while Ulsan uses Asia/Seoul (UTC+9).
What is the best time to call Ulsan from London?
Standard business hours (9 AM–5 PM) do not overlap between London and Ulsan due to the 8 hours difference. Consider early morning or late evening calls, or use async communication.
Does the London to Ulsan 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 London and Ulsan
The distance between London and Ulsan is approximately 9,156 km. A direct flight typically takes around 11.8 hours. Your arrival clock will show local Ulsan time — use our Flight Time Calculator to predict exact arrival times.