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