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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 Istanbul vs Kassala

Istanbul keeps UTC+3 (UTC+3) and Kassala keeps CAT (UTC+2) today. Kassala is 1 hour behind 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: 09:00–17:00 in Kassala (10:00–18:00 your time).

Istanbul and Kassala 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
Kassala——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Istanbul and Kassala

Best hours to call

10:00 in Istanbul
Inside working hours on both sides
09:00 in Kassala
11:00 in Istanbul
Inside working hours on both sides
10:00 in Kassala
12:00 in Istanbul
Inside working hours on both sides
11:00 in Kassala
13:00 in Istanbul
Inside working hours on both sides
12:00 in Kassala

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Kassala of Istanbul?

Kassala is 1 hour behind 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 Kassala?

Any hour in 10:00–18:00 Istanbul time is inside working hours in both cities.

Do Istanbul and Kassala change clocks on the same date?

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