Keflavik to Istanbul: time difference
Istanbul is 3 h ahead of Keflavik. 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.
Keflavik 23:38 11:38 PM Istanbul 02:38 2:38 AM You –:–
23:38 11:38 PM
Greenwich Mean Time · UTC+0
☀️ 08:29 · 🌙 18:03
02:38 2:38 AM
GMT+03:00 · UTC+3
☀️ 07:20 · 🌙 18:19
·
+3 h
Istanbul is 3 h ahead of Keflavik.
When you, Keflavik 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
🇮🇸 Keflavik
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
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 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇮🇸 Keflavik | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 23:38 | 02:38 |
| Local date | Sunday, October 18, 2026 | Monday, October 19, 2026 |
| Time zone | Greenwich Mean Time | GMT+03:00 |
| UTC offset | UTC+0 | UTC+3 |
| Offset from Keflavik | — | +3 h |
| IANA zone | Atlantic/Reykjavik | Europe/Istanbul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 08:29 | 07:20 |
| Sunset | 18:03 | 18:19 |
| Daylight | 9 h 34 min | 10 h 59 min |
| People on this clock | 15,000 | 15,701,602 |
Compare Keflavik with another city
More comparisons with Keflavik: the time zones next to it and the far side of the clock.
Big time differences
Keflavik and Istanbul: common questions
How many hours ahead of Keflavik is Istanbul?
The clocks in Istanbul are 3 hours ahead of those in Keflavik (UTC+3 and UTC+0).
What time is it in Istanbul when it is 9:00 AM in Keflavik?
When it is 9:00 AM in Keflavik, it is 12:00 PM in Istanbul.
What time is it in Istanbul when it is 6:00 PM in Keflavik?
When it is 6:00 PM in Keflavik, it is 9:00 PM in Istanbul.
When is a good time to call Istanbul from Keflavik?
Between 9:00 AM and 3:00 PM in Keflavik – that is 12:00 PM to 6:00 PM in Istanbul – both places are within working hours (9:00 AM–6:00 PM).
From what time in Keflavik is it tomorrow in Istanbul?
Once it is 9:00 PM in Keflavik, the date in Istanbul has already changed. Until 3:00 AM in Istanbul, it is still the previous day in Keflavik.
Does the time difference between Keflavik and Istanbul change?
No. Neither place uses daylight saving time, so the difference stays 3 hours all year.
