Time in Guangzhou vs Busan
Guangzhou keeps CST (UTC+8) and Busan keeps KST (UTC+9) today. Busan is 1 hour ahead of 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: 10:00–18:00 in Busan (09:00–17:00 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 |
| Busan—— | 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 Busan
Best hours to call
09:00 in Guangzhou
Inside working hours on both sides
10:00 in Busan
10:00 in Guangzhou
Inside working hours on both sides
11:00 in Busan
11:00 in Guangzhou
Inside working hours on both sides
12:00 in Busan
12:00 in Guangzhou
Inside working hours on both sides
13:00 in Busan
Where daylight saving pulls them apart
Neither Guangzhou nor Busan changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Busan of Guangzhou?
Busan is 1 hour ahead of 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 Busan?
Any hour in 09:00–17:00 Guangzhou time is inside working hours in both cities.
Do Guangzhou and Busan change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.