Time in Istanbul vs Tsu
Istanbul keeps UTC+3 (UTC+3) and Tsu keeps JST (UTC+9) today. Tsu 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 Tsu (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 |
| Tsu—— | 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 Tsu
Best hours to call
09:00 in Istanbul
Inside working hours on both sides
15:00 in Tsu
10:00 in Istanbul
Inside working hours on both sides
16:00 in Tsu
11:00 in Istanbul
Inside working hours on both sides
17:00 in Tsu
Where daylight saving pulls them apart
Neither Istanbul nor Tsu changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Tsu of Istanbul?
Tsu 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 Tsu?
Any hour in 09:00–12:00 Istanbul time is inside working hours in both cities.
Do Istanbul and Tsu change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.