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Global ClockTime zone converter & meeting planner
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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 Ulaanbaatar

Guangzhou keeps CST (UTC+8) and Ulaanbaatar keeps UTC+8 (UTC+8) today. Ulaanbaatar is the same time as 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: 09:00–18:00 in Ulaanbaatar (09:00–18:00 your time).

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

Do more with Guangzhou and Ulaanbaatar

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

Best hours to call

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

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Ulaanbaatar of Guangzhou?

Ulaanbaatar and Guangzhou read the same clock right now.

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

Any hour in 09:00–18:00 Guangzhou time is inside working hours in both cities.

Do Guangzhou and Ulaanbaatar change clocks on the same date?

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