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Global ClockTime zone converter & meeting planner
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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 Kollam vs Istanbul

Kollam keeps IST (UTC+5:30) and Istanbul keeps UTC+3 (UTC+3) today. Istanbul is 2½ hours behind Kollam; 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: 09:00–16:00 in Istanbul (11:00–18:00 your time).

Kollam and Istanbul hour by hour, with the working-hour overlap shaded
City00:00 in Kollam01:00 in Kollam02:00 in Kollam03:00 in Kollam04:00 in Kollam05:00 in Kollam06:00 in Kollam07:00 in Kollam08:00 in Kollam09:00 in Kollam10:00 in Kollam11:00 in Kollam12:00 in Kollam13:00 in Kollam14:00 in Kollam15:00 in Kollam16:00 in Kollam17:00 in Kollam18:00 in Kollam19:00 in Kollam20:00 in Kollam21:00 in Kollam22:00 in Kollam23:00 in Kollam
Kollam——000102030405060708091011121314151617181920212223
Istanbul——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Kollam and Istanbul

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

Best hours to call

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

Where daylight saving pulls them apart

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

Also useful

Common questions

How many hours ahead is Istanbul of Kollam?

Istanbul is 2½ hours behind Kollam right now. The gap is not fixed: it moves whenever either side changes its clocks.

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

Any hour in 11:00–18:00 Kollam time is inside working hours in both cities.

Do Kollam and Istanbul change clocks on the same date?

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