Time in Hanoi vs Guangzhou
Hanoi keeps ICT (UTC+7) and Guangzhou keeps CST (UTC+8) today. Guangzhou is 1 hour ahead of Hanoi; the rows below read both clocks live.
The working day, side by side
Hours shaded in both rows are inside working hours in both cities: 10:00–18:00 in Guangzhou (09:00–17:00 your time).
| City | 00:00 in Hanoi | 01:00 in Hanoi | 02:00 in Hanoi | 03:00 in Hanoi | 04:00 in Hanoi | 05:00 in Hanoi | 06:00 in Hanoi | 07:00 in Hanoi | 08:00 in Hanoi | 09:00 in Hanoi | 10:00 in Hanoi | 11:00 in Hanoi | 12:00 in Hanoi | 13:00 in Hanoi | 14:00 in Hanoi | 15:00 in Hanoi | 16:00 in Hanoi | 17:00 in Hanoi | 18:00 in Hanoi | 19:00 in Hanoi | 20:00 in Hanoi | 21:00 in Hanoi | 22:00 in Hanoi | 23:00 in Hanoi |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hanoi—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Guangzhou—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with Hanoi and Guangzhou
Best hours to call
09:00 in Hanoi
Inside working hours on both sides
10:00 in Guangzhou
10:00 in Hanoi
Inside working hours on both sides
11:00 in Guangzhou
11:00 in Hanoi
Inside working hours on both sides
12:00 in Guangzhou
12:00 in Hanoi
Inside working hours on both sides
13:00 in Guangzhou
Where daylight saving pulls them apart
Neither Hanoi nor Guangzhou changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Guangzhou of Hanoi?
Guangzhou is 1 hour ahead of Hanoi right now. The gap is not fixed: it moves whenever either side changes its clocks.
What is the best time to call between Hanoi and Guangzhou?
Any hour in 09:00–17:00 Hanoi time is inside working hours in both cities.
Do Hanoi and Guangzhou change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.