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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 Guangzhou vs Ōtsu

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

Guangzhou and Ōtsu 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
Ōtsu——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Guangzhou and Ōtsu

Best hours to call

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

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Ōtsu of Guangzhou?

Ōtsu 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 Ōtsu?

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

Do Guangzhou and Ōtsu change clocks on the same date?

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