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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 Tonk

Istanbul keeps UTC+3 (UTC+3) and Tonk keeps IST (UTC+5:30) today. Tonk is 2½ 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: 12:00–18:00 in Tonk (09:00–15:00 your time).

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

Do more with Istanbul and Tonk

Best hours to call

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

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Tonk of Istanbul?

Tonk is 2½ 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 Tonk?

Any hour in 09:00–15:00 Istanbul time is inside working hours in both cities.

Do Istanbul and Tonk change clocks on the same date?

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