Istanbul to Grudziadz: time difference
Grudziadz 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 05:01 5:01 AM Grudziadz 04:01 4:01 AM You –:–
05:01 5:01 AM
GMT+03:00 · UTC+3
☀️ 07:21 · 🌙 18:18
04:01 4:01 AM
Central European Summer Time · UTC+2
☀️ 07:21 · 🌙 17:40
·
−1 h
Grudziadz is 1 h behind Istanbul.
When you, Istanbul and Grudziadz 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
🇵🇱 Grudziadz
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 | 🇵🇱 Grudziadz |
|---|---|---|
| Local time | 05:01 | 04:01 |
| 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 | 07:21 |
| Sunset | 18:18 | 17:40 |
| Daylight | 10 h 57 min | 10 h 19 min |
| People on this clock | 15,701,602 | 92,552 |
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 Grudziadz: common questions
How many hours behind Istanbul is Grudziadz?
The clocks in Grudziadz are 1 hour behind those in Istanbul (UTC+2 and UTC+3).
What time is it in Grudziadz when it is 9:00 AM in Istanbul?
When it is 9:00 AM in Istanbul, it is 8:00 AM in Grudziadz.
What time is it in Grudziadz at the end of the working day in Istanbul?
The working day in Istanbul ends at 6:00 PM; in Grudziadz it is 5:00 PM at that moment.
Is there a time when both Istanbul and Grudziadz are at work?
Yes: from 10:00 AM to 6:00 PM in Istanbul (9:00 AM to 5:00 PM in Grudziadz), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Grudziadz compared with Istanbul?
The new day starts in Grudziadz later: until 1:00 AM in Istanbul, it is still the previous day there. From 11:00 PM in Grudziadz, Istanbul is already on the next day.
Is the time difference between Istanbul and Grudziadz the same all year?
No. Only Grudziadz switches to summer time, so the gap changes twice a year. From October 25, 2026, Grudziadz will be 2 hours behind Istanbul.
