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Global ClockTime zone converter & meeting planner
SETTINGS
Clock
Working hours
Start
09
End
18
Theme

AUTO follows the operating system. Working hours drive the green banding on every grid. All four persist on this device only.

Time in Gwangju vs Shanghai

Gwangju keeps KST (UTC+9) and Shanghai keeps CST (UTC+8) today. Shanghai is 1 hour behind Gwangju; 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 Shanghai (10:00–18:00 your time).

Gwangju and Shanghai hour by hour, with the working-hour overlap shaded
City00:00 in Gwangju01:00 in Gwangju02:00 in Gwangju03:00 in Gwangju04:00 in Gwangju05:00 in Gwangju06:00 in Gwangju07:00 in Gwangju08:00 in Gwangju09:00 in Gwangju10:00 in Gwangju11:00 in Gwangju12:00 in Gwangju13:00 in Gwangju14:00 in Gwangju15:00 in Gwangju16:00 in Gwangju17:00 in Gwangju18:00 in Gwangju19:00 in Gwangju20:00 in Gwangju21:00 in Gwangju22:00 in Gwangju23:00 in Gwangju
Gwangju——000102030405060708091011121314151617181920212223
Shanghai——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Gwangju and Shanghai

Best hours to call

10:00 in Gwangju
Inside working hours on both sides
09:00 in Shanghai
11:00 in Gwangju
Inside working hours on both sides
10:00 in Shanghai
12:00 in Gwangju
Inside working hours on both sides
11:00 in Shanghai
13:00 in Gwangju
Inside working hours on both sides
12:00 in Shanghai

Where daylight saving pulls them apart

Neither Gwangju nor Shanghai changes its clocks, so the gap above holds all year.

Also useful

Common questions

How many hours ahead is Shanghai of Gwangju?

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

What is the best time to call between Gwangju and Shanghai?

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

Do Gwangju and Shanghai change clocks on the same date?

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