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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 Catia La Mar

Guangzhou keeps CST (UTC+8) and Catia La Mar keeps UTC−4 (UTC−4) today. Catia La Mar is 12 hours behind Guangzhou; the rows below read both clocks live.

The working day, side by side

The working days do not meet. there is no working-hour overlap with Catia La Mar — the nearest workable window is 05:00–06:00 your time (17:00 there).

Guangzhou and Catia La Mar 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
Catia La Mar——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Guangzhou and Catia La Mar

Best hours to call

there is no working-hour overlap with Catia La Mar — the nearest workable window is 05:00–06:00 your time (17:00 there).

Where daylight saving pulls them apart

Neither Guangzhou nor Catia La Mar changes its clocks, so the gap above holds all year.

Also useful

Common questions

How many hours ahead is Catia La Mar of Guangzhou?

Catia La Mar is 12 hours behind 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 Catia La Mar?

There is no hour inside working hours in both cities. 05:00–06:00 your time (17:00 there) is the cheapest compromise, and one side is taking a shoulder hour.

Do Guangzhou and Catia La Mar change clocks on the same date?

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