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Global ClockTime zone converter & meeting planner
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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 Rayong vs Guangzhou

Rayong keeps ICT (UTC+7) and Guangzhou keeps CST (UTC+8) today. Guangzhou is 1 hour ahead of Rayong; 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 Guangzhou (09:00–17:00 your time).

Rayong and Guangzhou hour by hour, with the working-hour overlap shaded
City00:00 in Rayong01:00 in Rayong02:00 in Rayong03:00 in Rayong04:00 in Rayong05:00 in Rayong06:00 in Rayong07:00 in Rayong08:00 in Rayong09:00 in Rayong10:00 in Rayong11:00 in Rayong12:00 in Rayong13:00 in Rayong14:00 in Rayong15:00 in Rayong16:00 in Rayong17:00 in Rayong18:00 in Rayong19:00 in Rayong20:00 in Rayong21:00 in Rayong22:00 in Rayong23:00 in Rayong
Rayong——000102030405060708091011121314151617181920212223
Guangzhou——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

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

Best hours to call

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

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Guangzhou of Rayong?

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

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

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

Do Rayong and Guangzhou change clocks on the same date?

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