Time in Istanbul vs Yeosu
Istanbul keeps UTC+3 (UTC+3) and Yeosu keeps KST (UTC+9) today. Yeosu is 6 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: 15:00–18:00 in Yeosu (09:00–12:00 your time).
| City | 00:00 in Istanbul | 01:00 in Istanbul | 02:00 in Istanbul | 03:00 in Istanbul | 04:00 in Istanbul | 05:00 in Istanbul | 06:00 in Istanbul | 07:00 in Istanbul | 08:00 in Istanbul | 09:00 in Istanbul | 10:00 in Istanbul | 11:00 in Istanbul | 12:00 in Istanbul | 13:00 in Istanbul | 14:00 in Istanbul | 15:00 in Istanbul | 16:00 in Istanbul | 17:00 in Istanbul | 18:00 in Istanbul | 19:00 in Istanbul | 20:00 in Istanbul | 21:00 in Istanbul | 22:00 in Istanbul | 23:00 in Istanbul |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Yeosu—— | 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 Istanbul and Yeosu
Best hours to call
09:00 in Istanbul
Inside working hours on both sides
15:00 in Yeosu
10:00 in Istanbul
Inside working hours on both sides
16:00 in Yeosu
11:00 in Istanbul
Inside working hours on both sides
17:00 in Yeosu
Where daylight saving pulls them apart
Neither Istanbul nor Yeosu changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Yeosu of Istanbul?
Yeosu is 6 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 Yeosu?
Any hour in 09:00–12:00 Istanbul time is inside working hours in both cities.
Do Istanbul and Yeosu change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.