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Global ClockTime zone converter & meeting planner
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09
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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 Tehran vs Chengdu

Tehran keeps UTC+3:30 (UTC+3:30) and Chengdu keeps CST (UTC+8) today. Chengdu is 4½ hours ahead of Tehran; 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 Chengdu (09:00–13:00 your time).

Tehran and Chengdu hour by hour, with the working-hour overlap shaded
City00:00 in Tehran01:00 in Tehran02:00 in Tehran03:00 in Tehran04:00 in Tehran05:00 in Tehran06:00 in Tehran07:00 in Tehran08:00 in Tehran09:00 in Tehran10:00 in Tehran11:00 in Tehran12:00 in Tehran13:00 in Tehran14:00 in Tehran15:00 in Tehran16:00 in Tehran17:00 in Tehran18:00 in Tehran19:00 in Tehran20:00 in Tehran21:00 in Tehran22:00 in Tehran23:00 in Tehran
Tehran——000102030405060708091011121314151617181920212223
Chengdu——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Tehran and Chengdu

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

Best hours to call

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

Where daylight saving pulls them apart

Neither Tehran nor Chengdu changes its clocks, so the gap above holds all year.

Also useful

Common questions

How many hours ahead is Chengdu of Tehran?

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

What is the best time to call between Tehran and Chengdu?

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

Do Tehran and Chengdu change clocks on the same date?

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