Istanbul to Koło: time difference
Koło is 1 h behind Istanbul. 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.
Istanbul 02:42 2:42 AM Koło 01:42 1:42 AM You –:–
02:42 2:42 AM
GMT+03:00 · UTC+3
☀️ 07:21 · 🌙 18:18
01:42 1:42 AM
Central European Summer Time · UTC+2
☀️ 07:19 · 🌙 17:43
·
−1 h
Koło is 1 h behind Istanbul.
When you, Istanbul and Koło 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
🇵🇱 Koło
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 | 🇵🇱 Koło |
|---|---|---|
| Local time | 02:42 | 01:42 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | GMT+03:00 | Central European Summer Time |
| UTC offset | UTC+3 | UTC+2 |
| Offset from Istanbul | — | −1 h |
| IANA zone | Europe/Istanbul | Europe/Warsaw |
| Daylight saving | Not observed | On summer time → UTC+1, Oct 25, 02:00 |
| Sunrise | 07:21 | 07:19 |
| Sunset | 18:18 | 17:43 |
| Daylight | 10 h 57 min | 10 h 23 min |
| People on this clock | 15,701,602 | 21,035 |
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 Koło: common questions
What is the time difference between Istanbul and Koło?
Koło is 1 hour behind: it uses UTC+2, while Istanbul is on UTC+3.
If it is 9:00 AM in Istanbul, what time is it in Koło?
At 9:00 AM in Istanbul, clocks in Koło show 8:00 AM.
If it is 6:00 PM in Istanbul, what time is it in Koło?
At 6:00 PM in Istanbul, clocks in Koło show 5:00 PM.
When is a good time to call Koło from Istanbul?
Between 10:00 AM and 6:00 PM in Istanbul – that is 9:00 AM to 5:00 PM in Koło – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Koło?
Until 1:00 AM in Istanbul it is still the previous day in Koło. The other way round, from 11:00 PM in Koło it is already the next day in Istanbul.
Does the time gap between Istanbul and Koło change during the year?
Yes – daylight saving time is used in Koło but not in Istanbul. From October 25, 2026, Koło will be 2 hours behind Istanbul.
