Time difference
Hanoi to London Time Difference
London is 6 hours behind Hanoi — when it's 12:00 PM in Hanoi, it's 6:00 AM in London. (Hanoi (Asia/Ho_Chi_Minh, GMT+7); London (Europe/London, BST).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.
London is 6 hours behind Hanoi. The best window for a call is 3 PM–5 PM in Hanoi, which is 9 AM–11 AM in London — a 2-hour overlap inside 9 AM–5 PM on both sides. Clocks change on October 25, 2026, which briefly shifts the gap between Hanoi and London — the converter on this page always reflects the correct offset for the date you pick.
- When it's 9:00 AM in Hanoi, it's 3:00 AM in London.
- When it's 9:00 AM in London, it's 3:00 PM in Hanoi.
London is currently 6 hours behind Hanoi.
Interactive converter
12:00PM
--:----
Best times to meet
The 9 AM – 5 PM business windows in Hanoi and London overlap for 2 hours. 3 PM–5 PM in Hanoi is 9 AM–11 AM in London. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.
Quick conversion table
| Hanoi | London |
|---|---|
| 12 AM | 6:00 PM (prev day) |
| 1 AM | 7:00 PM (prev day) |
| 2 AM | 8:00 PM (prev day) |
| 3 AM | 9:00 PM (prev day) |
| 4 AM | 10:00 PM (prev day) |
| 5 AM | 11:00 PM (prev day) |
| 6 AM | 12:00 AM |
| 7 AM | 1:00 AM |
| 8 AM | 2:00 AM |
| 9 AM | 3:00 AM |
| 10 AM | 4:00 AM |
| 11 AM | 5:00 AM |
| 12 PM | 6:00 AM |
| 1 PM | 7:00 AM |
| 2 PM | 8:00 AM |
| 3 PM | 9:00 AM |
| 4 PM | 10:00 AM |
| 5 PM | 11:00 AM |
| 6 PM | 12:00 PM |
| 7 PM | 1:00 PM |
| 8 PM | 2:00 PM |
| 9 PM | 3:00 PM |
| 10 PM | 4:00 PM |
| 11 PM | 5:00 PM |
Daylight saving
On October 25, 2026, London shifts for daylight saving. After that, London will be 7 hours behind Hanoi (currently 6 hours behind Hanoi). The converter and the tables above always reflect the correct offset for the date you pick.
- Hanoi does not observe daylight saving time.
- London is currently observing daylight saving time.
Frequently asked questions
- Is London ahead of or behind Hanoi?
- London is 6 hours behind Hanoi.
- How many hours behind Hanoi is London?
- London is 6 hours behind Hanoi.
- What time is 9 AM in Hanoi in London?
- 9:00 AM in Hanoi is 3:00 AM in London.
- What time is noon in Hanoi in London?
- 12:00 PM in Hanoi is 6:00 AM in London.
- What time is 5 PM in Hanoi in London?
- 5:00 PM in Hanoi is 11:00 AM in London. Useful for end-of-day handoffs between the two offices.
- What time is 3 PM in Hanoi in London?
- 3:00 PM in Hanoi is 9:00 AM in London.
- Is Hanoi currently observing daylight saving time?
- Hanoi does not observe daylight saving time — its UTC offset stays the same all year.
- Is London currently observing daylight saving time?
- London is currently observing daylight saving time (summer time).
- Do Hanoi and London observe daylight saving?
- On October 25, 2026, London shifts for daylight saving. After that, London will be 7 hours behind Hanoi (currently 6 hours behind Hanoi). The converter and the tables above always reflect the correct offset for the date you pick.
- When is the best time to call London from Hanoi?
- Aim for 3 PM–5 PM in Hanoi, which is 9 AM–11 AM in London.
- When is the best time to call Hanoi from London?
- Aim for 9 AM–11 AM in London, which is 3 PM–5 PM in Hanoi.
- Hanoi (GMT+7) to London (BST) — how do I convert quickly?
- Subtract 6 hours from Hanoi local time to get London local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.
Other conversions
- Hanoi to New York
- Hanoi to Tokyo
- Dubai to Hanoi
- Hanoi to Singapore
- Hanoi to Los Angeles
- Hanoi to Sydney
- Hanoi to Paris
- Hanoi to Mumbai
- Hanoi to Hong Kong
- Hanoi to San Francisco