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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 Orūmīyeh vs Guangzhou

Orūmīyeh keeps UTC+3:30 (UTC+3:30) and Guangzhou keeps CST (UTC+8) today. Guangzhou is 4½ hours ahead of Orūmīyeh; 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: 14:00–18:00 in Guangzhou (09:00–13:00 your time).

Orūmīyeh and Guangzhou hour by hour, with the working-hour overlap shaded
City00:00 in Orūmīyeh01:00 in Orūmīyeh02:00 in Orūmīyeh03:00 in Orūmīyeh04:00 in Orūmīyeh05:00 in Orūmīyeh06:00 in Orūmīyeh07:00 in Orūmīyeh08:00 in Orūmīyeh09:00 in Orūmīyeh10:00 in Orūmīyeh11:00 in Orūmīyeh12:00 in Orūmīyeh13:00 in Orūmīyeh14:00 in Orūmīyeh15:00 in Orūmīyeh16:00 in Orūmīyeh17:00 in Orūmīyeh18:00 in Orūmīyeh19:00 in Orūmīyeh20:00 in Orūmīyeh21:00 in Orūmīyeh22:00 in Orūmīyeh23:00 in Orūmīyeh
Orūmīyeh——000102030405060708091011121314151617181920212223
Guangzhou——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

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

Best hours to call

09:00 in Orūmīyeh
Inside working hours on both sides
14:00 in Guangzhou
10:00 in Orūmīyeh
Inside working hours on both sides
15:00 in Guangzhou
11:00 in Orūmīyeh
Inside working hours on both sides
16:00 in Guangzhou
12:00 in Orūmīyeh
Inside working hours on both sides
17:00 in Guangzhou

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Guangzhou of Orūmīyeh?

Guangzhou is 4½ hours ahead of Orūmīyeh right now. The gap is not fixed: it moves whenever either side changes its clocks.

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

Any hour in 09:00–13:00 Orūmīyeh time is inside working hours in both cities.

Do Orūmīyeh and Guangzhou change clocks on the same date?

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