Grand Bay to Istanbul: time difference
Istanbul is 1 h behind Grand Bay. 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.
Grand Bay 01:09 1:09 AM Istanbul 00:09 12:09 AM You –:–
01:09 1:09 AM
Mauritius Standard Time · UTC+4
☀️ 05:37 · 🌙 18:13
00:09 12:09 AM
GMT+03:00 · UTC+3
☀️ 07:19 · 🌙 18:21
·
−1 h
Istanbul is 1 h behind Grand Bay.
When you, Grand Bay and Istanbul are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇲🇺 Grand Bay
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
🇹🇷 Istanbul
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 | 🇲🇺 Grand Bay | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 01:09 | 00:09 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Mauritius Standard Time | GMT+03:00 |
| UTC offset | UTC+4 | UTC+3 |
| Offset from Grand Bay | — | −1 h |
| IANA zone | Indian/Mauritius | Europe/Istanbul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:37 | 07:19 |
| Sunset | 18:13 | 18:21 |
| Daylight | 12 h 36 min | 11 h 2 min |
| People on this clock | 11,900 | 15,701,602 |
Compare Grand Bay with another city
More comparisons with Grand Bay: the time zones next to it and the far side of the clock.
Big time differences
Grand Bay and Istanbul: common questions
What is the time difference between Grand Bay and Istanbul?
Istanbul is 1 hour behind: it uses UTC+3, while Grand Bay is on UTC+4.
What time is it in Istanbul when it is 9:00 AM in Grand Bay?
When it is 9:00 AM in Grand Bay, it is 8:00 AM in Istanbul.
What time is it in Istanbul at the end of the working day in Grand Bay?
The working day in Grand Bay ends at 6:00 PM; in Istanbul it is 5:00 PM at that moment.
When is a good time to call Istanbul from Grand Bay?
Between 10:00 AM and 6:00 PM in Grand Bay – that is 9:00 AM to 5:00 PM in Istanbul – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Istanbul compared with Grand Bay?
The new day starts in Istanbul later: until 1:00 AM in Grand Bay, it is still the previous day there. From 11:00 PM in Istanbul, Grand Bay is already on the next day.
Does the time gap between Grand Bay and Istanbul change during the year?
No, the clocks change neither in Grand Bay nor in Istanbul, so the gap is 1 hour all year round.
