Time in Kosti vs Istanbul
Kosti keeps CAT (UTC+2) and Istanbul keeps UTC+3 (UTC+3) today. Istanbul is 1 hour ahead of Kosti; 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: 10:00–18:00 in Istanbul (09:00–17:00 your time).
| City | 00:00 in Kosti | 01:00 in Kosti | 02:00 in Kosti | 03:00 in Kosti | 04:00 in Kosti | 05:00 in Kosti | 06:00 in Kosti | 07:00 in Kosti | 08:00 in Kosti | 09:00 in Kosti | 10:00 in Kosti | 11:00 in Kosti | 12:00 in Kosti | 13:00 in Kosti | 14:00 in Kosti | 15:00 in Kosti | 16:00 in Kosti | 17:00 in Kosti | 18:00 in Kosti | 19:00 in Kosti | 20:00 in Kosti | 21:00 in Kosti | 22:00 in Kosti | 23:00 in Kosti |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kosti—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Istanbul—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with Kosti and Istanbul
Best hours to call
09:00 in Kosti
Inside working hours on both sides
10:00 in Istanbul
10:00 in Kosti
Inside working hours on both sides
11:00 in Istanbul
11:00 in Kosti
Inside working hours on both sides
12:00 in Istanbul
12:00 in Kosti
Inside working hours on both sides
13:00 in Istanbul
Where daylight saving pulls them apart
Neither Kosti nor Istanbul changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Istanbul of Kosti?
Istanbul is 1 hour ahead of Kosti right now. The gap is not fixed: it moves whenever either side changes its clocks.
What is the best time to call between Kosti and Istanbul?
Any hour in 09:00–17:00 Kosti time is inside working hours in both cities.
Do Kosti and Istanbul change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.