Best Meeting Time: Hanoi to London
🕐 Live Timezone Overlap: Hanoi & London
Meetings between Hanoi and London hinge on a 3-hour window each working day. Hanoi sits 6 hours behind London at the time of writing, which puts the comfortable overlap at 3:00 PM to 6:00 PM Hanoi time. Teams that work across these two cities tend to anchor their week-on-week sync into that block and push everything else to written updates. The widget below shows the exact mapping in both directions, including the small DST seasonal shift when one or both cities change clocks.
Time Difference: Hanoi and London
London is currently 6 hours behind Hanoi. The live offsets are Hanoi UTC+7 and London UTC+1. Hanoi does not observe daylight saving and London observes daylight saving, so the offset shifts twice a year if both sides aren't already aligned.
Hanoi does not observe DST, and London also observes DST. When either side switches, the offset shifts by an hour. The US and Europe also change clocks on different weekends, so for one week in spring and one in autumn the usual offset between US and European cities is off by an hour. Always confirm with the live tool above when you're scheduling a recurring meeting that spans a DST changeover.
Best Times to Meet
Inside the 3-hour overlap, the best slots depend on local culture. Hanoi tends to favour mid-morning meetings; London works 9am–6pm as a default. Aim for the middle of the window where neither side is just starting or wrapping up. Avoid Friday afternoons if the other party has a strong end-of-week culture, and skip lunchtime in whichever city is in the 12–2pm block.
Working Hours Overlap Explained
Hanoi operates on Asia/Bangkok (currently UTC+7). London operates on Europe/London (currently UTC+1). The table below maps a standard 9:00 AM–6:00 PM day in Hanoi to London's local time.
| Hanoi time | London time | Status |
|---|---|---|
| 9:00 AM | 3:00 AM | London outside hours |
| 10:00 AM | 4:00 AM | London outside hours |
| 11:00 AM | 5:00 AM | London outside hours |
| 12:00 PM | 6:00 AM | London outside hours |
| 1:00 PM | 7:00 AM | London outside hours |
| 2:00 PM | 8:00 AM | London just starting |
| 3:00 PM | 9:00 AM | London in business hours |
| 4:00 PM | 10:00 AM | London in business hours |
| 5:00 PM | 11:00 AM | London in business hours |
| 6:00 PM | 12:00 PM | London in business hours |
Tips for Scheduling Across Hanoi and London
- Aim for around 4:30 PM Hanoi time: the middle of the overlap leaves room for both sides if the call runs long.
- London observes daylight saving but Hanoi does not, so your offset shifts twice a year. Lock recurring meetings to local time in Hanoi.
- Watch London's holiday calendar: New Year's Day (01-01) takes most offices offline, so plan key meetings around it.
- Send each invite with both cities' local times in the description so neither party has to do the conversion mid-day.
- A 6-hour gap is workable but tight. Hold the live meeting for decisions; push status updates to written async.
Public Holidays and Working Weeks
Vietnam runs a Monday–Friday working week with a standard public holiday calendar among the key closures. United Kingdom's major holidays include New Year's Day (01-01) and May Bank Holiday (first Monday in May). Cross-check both calendars when scheduling recurring meetings: a 30-minute call in one city's holiday week typically gets a much lower attendance rate than the same slot a week later.