Time difference between Oslo and Istanbul
Istanbul is 1 hour ahead of Oslo
Right now
Oslo
18:38
CEST ·
UTC+2
Istanbul
19:38
TRT ·
UTC+3
Best time for a call between Oslo and Istanbul
Hours highlighted in green work for everyone on the list.
- 09:00 Oslo 10:00 Istanbul
- 10:00 Oslo 11:00 Istanbul
- 11:00 Oslo 12:00 Istanbul
Hour by hour: Oslo to Istanbul
Working hours are shaded. The rows marked with a star are the ones we recommend for a call.
| Oslo (reference) | Istanbul | |
|---|---|---|
| 00:00 | 01:00 | |
| 01:00 | 02:00 | |
| 02:00 | 03:00 | |
| 03:00 | 04:00 | |
| 04:00 | 05:00 | |
| 05:00 | 06:00 | |
| 06:00 | 07:00 | |
| 07:00 | 08:00 | |
| 08:00 | 09:00 | |
| ★ | 09:00 | 10:00 |
| ★ | 10:00 | 11:00 |
| ★ | 11:00 | 12:00 |
| 12:00 | 13:00 | |
| 13:00 | 14:00 | |
| 14:00 | 15:00 | |
| 15:00 | 16:00 | |
| 16:00 | 17:00 | |
| 17:00 | 18:00 | |
| 18:00 | 19:00 | |
| 19:00 | 20:00 | |
| 20:00 | 21:00 | |
| 21:00 | 22:00 | |
| 22:00 | 23:00 | |
| 23:00 | 00:00 (next day) |
Table built for August 26, 2026. The live values above update in your browser.
Daylight saving time
Oslo changes its clocks and Istanbul does not, so the difference between them is not the same all year.
Frequently asked questions
What is the time difference between Oslo and Istanbul?
Istanbul is 1 hour ahead of Oslo
What is the best time to call between Oslo and Istanbul?
The most convenient slot is 09:00 Oslo / 10:00 Istanbul. That keeps the call inside working hours in both cities.
Does the difference between Oslo and Istanbul change during the year?
Oslo changes its clocks and Istanbul does not, so the difference between them is not the same all year.