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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 Lanzhou

Guangzhou keeps CST (UTC+8) and Lanzhou keeps CST (UTC+8) today. Lanzhou 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 Lanzhou (09:00–18:00 your time).

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

Do more with Guangzhou and Lanzhou

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, Lanzhou 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 Lanzhou
10:00 in Guangzhou
Inside working hours on both sides
10:00 in Lanzhou
11:00 in Guangzhou
Inside working hours on both sides
11:00 in Lanzhou
12:00 in Guangzhou
Inside working hours on both sides
12:00 in Lanzhou

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Lanzhou of Guangzhou?

Lanzhou and Guangzhou read the same clock right now.

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

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

Do Guangzhou and Lanzhou change clocks on the same date?

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