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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 Sejong vs Guangzhou

Sejong keeps KST (UTC+9) and Guangzhou keeps CST (UTC+8) today. Guangzhou is 1 hour behind Sejong; 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).

Sejong and Guangzhou hour by hour, with the working-hour overlap shaded
City00:00 in Sejong01:00 in Sejong02:00 in Sejong03:00 in Sejong04:00 in Sejong05:00 in Sejong06:00 in Sejong07:00 in Sejong08:00 in Sejong09:00 in Sejong10:00 in Sejong11:00 in Sejong12:00 in Sejong13:00 in Sejong14:00 in Sejong15:00 in Sejong16:00 in Sejong17:00 in Sejong18:00 in Sejong19:00 in Sejong20:00 in Sejong21:00 in Sejong22:00 in Sejong23:00 in Sejong
Sejong——000102030405060708091011121314151617181920212223
Guangzhou——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Sejong 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 Sejong, Guangzhou and other cities on screen as live clocks, under an animated sky and sun.

Best hours to call

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

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Guangzhou of Sejong?

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

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

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

Do Sejong and Guangzhou change clocks on the same date?

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