Istanbul to Rostrenen: time difference
Rostrenen 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 04:11 4:11 AM Rostrenen 03:11 3:11 AM You –:–
04:11 4:11 AM
GMT+03:00 · UTC+3
☀️ 07:22 · 🌙 18:16
03:11 3:11 AM
Central European Summer Time · UTC+2
☀️ 08:42 · 🌙 19:15
·
−1 h
Rostrenen is 1 h behind Istanbul.
When you, Istanbul and Rostrenen 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
🇫🇷 Rostrenen
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 | 🇫🇷 Rostrenen |
|---|---|---|
| Local time | 04:11 | 03:11 |
| Local date | Wednesday, October 21, 2026 | Wednesday, October 21, 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/Paris |
| Daylight saving | Not observed | On summer time → UTC+1, Oct 25, 02:00 |
| Sunrise | 07:22 | 08:42 |
| Sunset | 18:16 | 19:15 |
| Daylight | 10 h 54 min | 10 h 33 min |
| People on this clock | 15,701,602 | 3,200 |
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 Rostrenen: common questions
How many hours behind Istanbul is Rostrenen?
The clocks in Rostrenen are 1 hour behind those in Istanbul (UTC+2 and UTC+3).
What time is it in Rostrenen at the start of the working day in Istanbul?
The working day in Istanbul starts at 9:00 AM; in Rostrenen it is 8:00 AM at that moment.
If it is 6:00 PM in Istanbul, what time is it in Rostrenen?
At 6:00 PM in Istanbul, clocks in Rostrenen show 5:00 PM.
Is there a time when both Istanbul and Rostrenen are at work?
Yes: from 10:00 AM to 6:00 PM in Istanbul (9:00 AM to 5:00 PM in Rostrenen), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Rostrenen compared with Istanbul?
The new day starts in Rostrenen later: until 1:00 AM in Istanbul, it is still the previous day there. From 11:00 PM in Rostrenen, Istanbul is already on the next day.
Does the time gap between Istanbul and Rostrenen change during the year?
Yes – daylight saving time is used in Rostrenen but not in Istanbul. From October 25, 2026, Rostrenen will be 2 hours behind Istanbul.
