Kolbotn to Istanbul: time difference
Istanbul is 1 h ahead of Kolbotn. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Kolbotn 18:33 6:33 PM Istanbul 19:33 7:33 PM You –:–
18:33 6:33 PM
Central European Summer Time · UTC+2
☀️ 08:00 · 🌙 18:05
19:33 7:33 PM
GMT+03:00 · UTC+3
☀️ 07:18 · 🌙 18:22
·
+1 h
Istanbul is 1 h ahead of Kolbotn.
When you, Kolbotn and Istanbul are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇳🇴 Kolbotn
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇹🇷 Istanbul
1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇳🇴 Kolbotn | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 18:33 | 19:33 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Central European Summer Time | GMT+03:00 |
| UTC offset | UTC+2 | UTC+3 |
| Offset from Kolbotn | — | +1 h |
| IANA zone | Europe/Oslo | Europe/Istanbul |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 08:00 | 07:18 |
| Sunset | 18:05 | 18:22 |
| Daylight | 10 h 5 min | 11 h 5 min |
| People on this clock | 4,500 | 15,701,602 |
Compare Kolbotn with another city
More comparisons with Kolbotn: the time zones next to it and the far side of the clock.
Big time differences
Kolbotn and Istanbul: common questions
How many hours ahead of Kolbotn is Istanbul?
The clocks in Istanbul are 1 hour ahead of those in Kolbotn (UTC+3 and UTC+2).
What time is it in Istanbul at the start of the working day in Kolbotn?
The working day in Kolbotn starts at 9:00 AM; in Istanbul it is 10:00 AM at that moment.
What time is it in Istanbul at the end of the working day in Kolbotn?
The working day in Kolbotn ends at 6:00 PM; in Istanbul it is 7:00 PM at that moment.
Is there a time when both Kolbotn and Istanbul are at work?
Yes: from 9:00 AM to 5:00 PM in Kolbotn (10:00 AM to 6:00 PM in Istanbul), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Istanbul compared with Kolbotn?
The new day starts in Istanbul earlier: at 11:00 PM in Kolbotn it is already midnight there. Until 1:00 AM in Istanbul, Kolbotn is still on the previous day.
Does the time difference between Kolbotn and Istanbul change?
Yes. The clocks change only in Kolbotn. From October 25, 2026, Istanbul will be 2 hours ahead of Kolbotn.
