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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 Istanbul vs Sihanoukville

Istanbul keeps UTC+3 (UTC+3) and Sihanoukville keeps ICT (UTC+7) today. Sihanoukville is 4 hours ahead of Istanbul; 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: 13:00–18:00 in Sihanoukville (09:00–14:00 your time).

Istanbul and Sihanoukville hour by hour, with the working-hour overlap shaded
City00:00 in Istanbul01:00 in Istanbul02:00 in Istanbul03:00 in Istanbul04:00 in Istanbul05:00 in Istanbul06:00 in Istanbul07:00 in Istanbul08:00 in Istanbul09:00 in Istanbul10:00 in Istanbul11:00 in Istanbul12:00 in Istanbul13:00 in Istanbul14:00 in Istanbul15:00 in Istanbul16:00 in Istanbul17:00 in Istanbul18:00 in Istanbul19:00 in Istanbul20:00 in Istanbul21:00 in Istanbul22:00 in Istanbul23:00 in Istanbul
Istanbul——000102030405060708091011121314151617181920212223
Sihanoukville——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Istanbul and Sihanoukville

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

Best hours to call

09:00 in Istanbul
Inside working hours on both sides
13:00 in Sihanoukville
10:00 in Istanbul
Inside working hours on both sides
14:00 in Sihanoukville
11:00 in Istanbul
Inside working hours on both sides
15:00 in Sihanoukville
12:00 in Istanbul
Inside working hours on both sides
16:00 in Sihanoukville

Where daylight saving pulls them apart

Neither Istanbul nor Sihanoukville changes its clocks, so the gap above holds all year.

Also useful

Common questions

How many hours ahead is Sihanoukville of Istanbul?

Sihanoukville is 4 hours ahead of Istanbul right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between Istanbul and Sihanoukville?

Any hour in 09:00–14:00 Istanbul time is inside working hours in both cities.

Do Istanbul and Sihanoukville change clocks on the same date?

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