Time Difference: London vs Hanoi

Live comparison of current time in London, United Kingdom and Hanoi, Vietnam.

London, United Kingdom
07:05:01AM
Friday, March 27, 2026
7 hours ahead
Hanoi, Vietnam
02:05:01PM
Friday, March 27, 2026

Hour-by-Hour Comparison

LondonHanoi
12:00 AM7:00 AM
1:00 AM8:00 AM
2:00 AM9:00 AM
3:00 AM10:00 AM
4:00 AM11:00 AM
5:00 AM12:00 PM
6:00 AM1:00 PM
7:00 AM2:00 PM
8:00 AM3:00 PM
9:00 AM4:00 PM
10:00 AM5:00 PM
11:00 AM6:00 PM
12:00 PM7:00 PM
1:00 PM8:00 PM
2:00 PM9:00 PM
3:00 PM10:00 PM
4:00 PM11:00 PM
5:00 PM12:00 AM
6:00 PM1:00 AM
7:00 PM2:00 AM
8:00 PM3:00 AM
9:00 PM4:00 AM
10:00 PM5:00 AM
11:00 PM6:00 AM

About Time Difference: London and Hanoi

London, United Kingdom is in the Europe/London timezone with a UTC offset of UTC. Hanoi, Vietnam is in the Asia/Bangkok timezone with a UTC offset of UTC+7. The hour-by-hour table above shows when working hours overlap, helping you find the best time for calls, meetings, and collaboration.

Frequently Asked Questions

What is the time difference between London and Hanoi?

London uses the Europe/London timezone (UTC) and Hanoi uses the Asia/Bangkok timezone (UTC+7). The exact difference may vary during daylight saving transitions.

When is the best time to call from London to Hanoi?

Look for hours highlighted in green in the comparison table above — these are times when both cities are within standard working hours (9 AM - 5 PM).

Does the time difference change?

Yes, if either city observes daylight saving time, the difference can shift by 1 hour during DST transitions. This page always shows the current, live difference.