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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 Cheonan vs Shanghai

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

Cheonan and Shanghai hour by hour, with the working-hour overlap shaded
City00:00 in Cheonan01:00 in Cheonan02:00 in Cheonan03:00 in Cheonan04:00 in Cheonan05:00 in Cheonan06:00 in Cheonan07:00 in Cheonan08:00 in Cheonan09:00 in Cheonan10:00 in Cheonan11:00 in Cheonan12:00 in Cheonan13:00 in Cheonan14:00 in Cheonan15:00 in Cheonan16:00 in Cheonan17:00 in Cheonan18:00 in Cheonan19:00 in Cheonan20:00 in Cheonan21:00 in Cheonan22:00 in Cheonan23:00 in Cheonan
Cheonan——000102030405060708091011121314151617181920212223
Shanghai——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Cheonan and Shanghai

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

Best hours to call

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

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Shanghai of Cheonan?

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

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

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

Do Cheonan and Shanghai change clocks on the same date?

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