Istanbul to Kotka: time difference
Kotka is 1 h behind Istanbul. Live clocks for both, the working hours they share, and how each one sits against your own time.
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Istanbul 16:56 4:56 PM Kotka 15:56 3:56 PM You –:–
16:56 4:56 PM
Türkiye Standard Time · UTC+3
☀️ 07:41 · 🌙 17:56
15:56 3:56 PM
Eastern European Standard Time · UTC+2
☀️ 07:49 · 🌙 16:04
·
−1 h
Kotka is 1 h behind Istanbul.
When you, Istanbul and Kotka are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇹🇷 Istanbul
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
🇫🇮 Kotka
23 11 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇷 Istanbul | 🇫🇮 Kotka |
|---|---|---|
| Local time | 16:56 | 15:56 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Türkiye Standard Time | Eastern European Standard Time |
| UTC offset | UTC+3 | UTC+2 |
| Offset from Istanbul | — | −1 h |
| IANA zone | Europe/Istanbul | Europe/Helsinki |
| Daylight saving | Not observed | On standard time → UTC+3, Mar 28, 04:00 |
| Sunrise | 07:41 | 07:49 |
| Sunset | 17:56 | 16:04 |
| Daylight | 10 h 15 min | 8 h 14 min |
| People on this clock | 15,701,602 | 50,488 |
Compare Istanbul with another city
More comparisons with Istanbul: the time zones next to it and the far side of the clock.
Big time differences
Istanbul and Kotka: common questions
How far behind Istanbul is Kotka?
Kotka is 1 hour behind Istanbul: UTC+2 against UTC+3.
If it is 9:00 AM in Istanbul, what time is it in Kotka?
At 9:00 AM in Istanbul, clocks in Kotka show 8:00 AM.
What time is it in Kotka at the end of the working day in Istanbul?
The working day in Istanbul ends at 6:00 PM; in Kotka it is 5:00 PM at that moment.
When do working hours in Istanbul and in Kotka overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Istanbul, which is 9:00 AM to 5:00 PM in Kotka.
When is it still the previous day in Kotka?
Until 1:00 AM in Istanbul it is still the previous day in Kotka. The other way round, from 11:00 PM in Kotka it is already the next day in Istanbul.
Is the time difference between Istanbul and Kotka the same all year?
No. Only Kotka switches to summer time, so the gap changes twice a year. From March 28, 2027, Kotka and Istanbul will have the same time.
