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Global ClockTime zone converter & meeting planner
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Working hours
Start
09
End
18
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AUTO follows the operating system. Working hours drive the green banding on every grid. All four persist on this device only.

Time in Guangzhou vs Hyesan

Guangzhou keeps CST (UTC+8) and Hyesan keeps KST (UTC+9) today. Hyesan 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 Hyesan (09:00–17:00 your time).

Guangzhou and Hyesan hour by hour, with the working-hour overlap shaded
City00:00 in Guangzhou01:00 in Guangzhou02:00 in Guangzhou03:00 in Guangzhou04:00 in Guangzhou05:00 in Guangzhou06:00 in Guangzhou07:00 in Guangzhou08:00 in Guangzhou09:00 in Guangzhou10:00 in Guangzhou11:00 in Guangzhou12:00 in Guangzhou13:00 in Guangzhou14:00 in Guangzhou15:00 in Guangzhou16:00 in Guangzhou17:00 in Guangzhou18:00 in Guangzhou19:00 in Guangzhou20:00 in Guangzhou21:00 in Guangzhou22:00 in Guangzhou23:00 in Guangzhou
Guangzhou——000102030405060708091011121314151617181920212223
Hyesan——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Guangzhou and Hyesan

Open in the PlannerAdd more cities, find a meeting time that works for everyone, then share it as a link.Open in Watch ViewKeep Guangzhou, Hyesan and other cities on screen as live clocks, under an animated sky and sun.

Best hours to call

09:00 in Guangzhou
Inside working hours on both sides
10:00 in Hyesan
10:00 in Guangzhou
Inside working hours on both sides
11:00 in Hyesan
11:00 in Guangzhou
Inside working hours on both sides
12:00 in Hyesan
12:00 in Guangzhou
Inside working hours on both sides
13:00 in Hyesan

Where daylight saving pulls them apart

Neither Guangzhou nor Hyesan changes its clocks, so the gap above holds all year.

Also useful

Common questions

How many hours ahead is Hyesan of Guangzhou?

Hyesan 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 Hyesan?

Any hour in 09:00–17:00 Guangzhou time is inside working hours in both cities.

Do Guangzhou and Hyesan change clocks on the same date?

Neither city changes its clocks, so the gap between them never moves.