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Working hours
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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 Hyesan vs Guangzhou

Hyesan keeps KST (UTC+9) and Guangzhou keeps CST (UTC+8) today. Guangzhou is 1 hour behind Hyesan; 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: 09:00–17:00 in Guangzhou (10:00–18:00 your time).

Hyesan and Guangzhou hour by hour, with the working-hour overlap shaded
City00:00 in Hyesan01:00 in Hyesan02:00 in Hyesan03:00 in Hyesan04:00 in Hyesan05:00 in Hyesan06:00 in Hyesan07:00 in Hyesan08:00 in Hyesan09:00 in Hyesan10:00 in Hyesan11:00 in Hyesan12:00 in Hyesan13:00 in Hyesan14:00 in Hyesan15:00 in Hyesan16:00 in Hyesan17:00 in Hyesan18:00 in Hyesan19:00 in Hyesan20:00 in Hyesan21:00 in Hyesan22:00 in Hyesan23:00 in Hyesan
Hyesan——000102030405060708091011121314151617181920212223
Guangzhou——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Hyesan and Guangzhou

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

Best hours to call

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

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Guangzhou of Hyesan?

Guangzhou is 1 hour behind Hyesan right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between Hyesan and Guangzhou?

Any hour in 10:00–18:00 Hyesan time is inside working hours in both cities.

Do Hyesan and Guangzhou change clocks on the same date?

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