Hanoi to London Time Difference
London is 6 hours behind Hanoi. When it is noon in Hanoi, it is 06:00 in London.
Ho Chi_Minh (UTC+7) → London (UTC+1)
🕐 Interactive Time Explorer
When it's 16:00 in Hanoi, it's 10:00 in London
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Hanoi & London✓ Perfect Match (2 hours)
◐ Extended Hours (7 hours)
✈️ Travel Information
Distance
9,235 km
Est. Flight Time
~11.9h
Time Difference
-6h
Work Hours Overlap
2h
Limited
🔴 Office Closed
Tomorrow 15:00
15:00 - 17:00
⏰ Quick Conversion
06:00
Hanoi
00:00
London
09:00
Hanoi
03:00
London
12:00
Hanoi
06:00
London
15:00
Hanoi
09:00
London
18:00
Hanoi
12:00
London
21:00
Hanoi
15:00
London
00:00
Hanoi
18:00
London (-1)
03:00
Hanoi
21:00
London (-1)
Frequently Asked Questions
How many hours is Hanoi ahead of London?
London is 6 hours behind Hanoi. When it is 12:00 noon in Hanoi, it is 06:00 in London. Hanoi operates on Asia/Ho Chi Minh (UTC+7), while London uses Europe/London (UTC+1).
What is the best time to call London from Hanoi?
There are 3 hours of overlapping business time (9 AM–5 PM) between Hanoi and London. The best window is 15:00–18:00 Hanoi time (09:00–12:00 in London).
Does the Hanoi 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 Hanoi and London
The distance between Hanoi and London is approximately 9,235 km. A direct flight typically takes around 11.9 hours. Your arrival clock will show local London time — use our Flight Time Calculator to predict exact arrival times.