Istanbul to Celje: time difference
Celje 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 19:54 7:54 PM Celje 18:54 6:54 PM You –:–
19:54 7:54 PM
GMT+03:00 · UTC+3
☀️ 07:21 · 🌙 18:18
18:54 6:54 PM
Central European Summer Time · UTC+2
☀️ 07:23 · 🌙 18:06
·
−1 h
Celje is 1 h behind Istanbul.
When you, Istanbul and Celje 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
🇸🇮 Celje
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 | 🇸🇮 Celje |
|---|---|---|
| Local time | 19:54 | 18:54 |
| 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/Ljubljana |
| Daylight saving | Not observed | On summer time → UTC+1, Oct 25, 02:00 |
| Sunrise | 07:21 | 07:23 |
| Sunset | 18:18 | 18:06 |
| Daylight | 10 h 57 min | 10 h 43 min |
| People on this clock | 15,701,602 | 37,872 |
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 Celje: common questions
How many hours behind Istanbul is Celje?
The clocks in Celje are 1 hour behind those in Istanbul (UTC+2 and UTC+3).
If it is 9:00 AM in Istanbul, what time is it in Celje?
At 9:00 AM in Istanbul, clocks in Celje show 8:00 AM.
What time is it in Celje when it is 6:00 PM in Istanbul?
When it is 6:00 PM in Istanbul, it is 5:00 PM in Celje.
Is there a time when both Istanbul and Celje are at work?
Yes: from 10:00 AM to 6:00 PM in Istanbul (9:00 AM to 5:00 PM in Celje), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Celje compared with Istanbul?
The new day starts in Celje later: until 1:00 AM in Istanbul, it is still the previous day there. From 11:00 PM in Celje, Istanbul is already on the next day.
Does the time difference between Istanbul and Celje change?
Yes. The clocks change only in Celje. From October 25, 2026, Celje will be 2 hours behind Istanbul.
