Hanoi & Singapore Time Difference
🕐 Live Timezone Overlap: Hanoi & Singapore
Meetings between Hanoi and Singapore hinge on a 8-hour window each working day. Hanoi sits 1 hour ahead of Singapore at the time of writing, which puts the comfortable overlap at 9:00 AM to 5:00 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 Singapore
Singapore is currently 1 hour ahead of Hanoi. The live offsets are Hanoi UTC+7 and Singapore UTC+8. Hanoi does not observe daylight saving and Singapore does not, so the offset shifts twice a year if both sides aren't already aligned.
Hanoi does not observe DST, and Singapore does not. 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 8-hour overlap, the best slots depend on local culture. Hanoi tends to favour mid-morning meetings; Singapore 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). Singapore operates on Asia/Singapore (currently UTC+8). The table below maps a standard 9:00 AM–6:00 PM day in Hanoi to Singapore's local time.
| Hanoi time | Singapore time | Status |
|---|---|---|
| 9:00 AM | 10:00 AM | Singapore in business hours |
| 10:00 AM | 11:00 AM | Singapore in business hours |
| 11:00 AM | 12:00 PM | Singapore in business hours |
| 12:00 PM | 1:00 PM | Singapore in business hours |
| 1:00 PM | 2:00 PM | Singapore in business hours |
| 2:00 PM | 3:00 PM | Singapore in business hours |
| 3:00 PM | 4:00 PM | Singapore in business hours |
| 4:00 PM | 5:00 PM | Singapore in business hours |
| 5:00 PM | 6:00 PM | Singapore wrapping up |
| 6:00 PM | 7:00 PM | Singapore outside hours |
Tips for Scheduling Across Hanoi and Singapore
- Aim for around 1:00 PM Hanoi time: the middle of the overlap leaves room for both sides if the call runs long.
- Neither city observes DST, so the offset between Hanoi and Singapore stays constant year-round.
- Watch Singapore's holiday calendar: Chinese New Year (January or February (movable)) 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.
- The gap is small enough that most teams keep one shared calendar in Bangkok time and convert mentally.
Public Holidays and Working Weeks
Vietnam runs a Monday–Friday working week with a standard public holiday calendar among the key closures. Singapore's major holidays include Chinese New Year (January or February (movable)) and National Day (08-09). 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.