Time in Guangzhou vs Qom
Guangzhou keeps CST (UTC+8) and Qom keeps UTC+3:30 (UTC+3:30) today. Qom is 4½ hours behind Guangzhou; 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: 09:00–14:00 in Qom (13:00–18:00 your time).
| City | 00:00 in Guangzhou | 01:00 in Guangzhou | 02:00 in Guangzhou | 03:00 in Guangzhou | 04:00 in Guangzhou | 05:00 in Guangzhou | 06:00 in Guangzhou | 07:00 in Guangzhou | 08:00 in Guangzhou | 09:00 in Guangzhou | 10:00 in Guangzhou | 11:00 in Guangzhou | 12:00 in Guangzhou | 13:00 in Guangzhou | 14:00 in Guangzhou | 15:00 in Guangzhou | 16:00 in Guangzhou | 17:00 in Guangzhou | 18:00 in Guangzhou | 19:00 in Guangzhou | 20:00 in Guangzhou | 21:00 in Guangzhou | 22:00 in Guangzhou | 23:00 in Guangzhou |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Qom—— | 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 Guangzhou and Qom
Best hours to call
13:00 in Guangzhou
Inside working hours on both sides
09:00 in Qom
14:00 in Guangzhou
Inside working hours on both sides
10:00 in Qom
15:00 in Guangzhou
Inside working hours on both sides
11:00 in Qom
16:00 in Guangzhou
Inside working hours on both sides
12:00 in Qom
Where daylight saving pulls them apart
Neither Guangzhou nor Qom changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Qom of Guangzhou?
Qom is 4½ hours behind Guangzhou right now. The gap is not fixed: it moves whenever either side changes its clocks.
What is the best time to call between Guangzhou and Qom?
Any hour in 13:00–18:00 Guangzhou time is inside working hours in both cities.
Do Guangzhou and Qom change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.