Ar-rustaq to Istanbul: time difference
Istanbul is 1 h behind Ar-rustaq. 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.
Ar-rustaq 20:06 8:06 PM Istanbul 19:06 7:06 PM You –:–
20:06 8:06 PM
Gulf Standard Time · UTC+4
☀️ 06:09 · 🌙 17:44
19:06 7:06 PM
GMT+03:00 · UTC+3
☀️ 07:18 · 🌙 18:22
·
−1 h
Istanbul is 1 h behind Ar-rustaq.
When you, Ar-rustaq 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
🇴🇲 Ar-rustaq
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 | 🇴🇲 Ar-rustaq | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 20:06 | 19:06 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Gulf Standard Time | GMT+03:00 |
| UTC offset | UTC+4 | UTC+3 |
| Offset from Ar-rustaq | — | −1 h |
| IANA zone | Asia/Muscat | Europe/Istanbul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:09 | 07:18 |
| Sunset | 17:44 | 18:22 |
| Daylight | 11 h 35 min | 11 h 5 min |
| People on this clock | 120,000 | 15,701,602 |
Compare Ar-rustaq with another city
More comparisons with Ar-rustaq: the time zones next to it and the far side of the clock.
Big time differences
Ar-rustaq and Istanbul: common questions
How far behind Ar-rustaq is Istanbul?
Istanbul is 1 hour behind Ar-rustaq: UTC+3 against UTC+4.
What time is it in Istanbul when it is 9:00 AM in Ar-rustaq?
When it is 9:00 AM in Ar-rustaq, it is 8:00 AM in Istanbul.
If it is 6:00 PM in Ar-rustaq, what time is it in Istanbul?
At 6:00 PM in Ar-rustaq, clocks in Istanbul show 5:00 PM.
When is a good time to call Istanbul from Ar-rustaq?
Between 10:00 AM and 6:00 PM in Ar-rustaq – that is 9:00 AM to 5:00 PM in Istanbul – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Istanbul?
Until 1:00 AM in Ar-rustaq it is still the previous day in Istanbul. The other way round, from 11:00 PM in Istanbul it is already the next day in Ar-rustaq.
Does the time difference between Ar-rustaq and Istanbul change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
