Istanbul to Rio de Mouro: time difference
Rio de Mouro is 2 h behind Istanbul. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇵🇹 Rio de Mouro, Portugal
22
- Western European Summer Time
- UTC+1
- Daytime
☀️ 07:51 · 🌙 18:55 · 11 h 4 min
−2 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Istanbul 17:51 5:51 PM Rio de Mouro 15:51 3:51 PM You –:–
17:51 5:51 PM
GMT+03:00 · UTC+3
☀️ 07:20 · 🌙 18:19
15:51 3:51 PM
Western European Summer Time · UTC+1
☀️ 07:51 · 🌙 18:55
·
−2 h
Rio de Mouro is 2 h behind Istanbul.
When you, Istanbul and Rio de Mouro 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
🇵🇹 Rio de Mouro
22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇷 Istanbul | 🇵🇹 Rio de Mouro |
|---|---|---|
| Local time | 17:51 | 15:51 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | GMT+03:00 | Western European Summer Time |
| UTC offset | UTC+3 | UTC+1 |
| Offset from Istanbul | — | −2 h |
| IANA zone | Europe/Istanbul | Europe/Lisbon |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 07:20 | 07:51 |
| Sunset | 18:19 | 18:55 |
| Daylight | 10 h 59 min | 11 h 4 min |
| People on this clock | 15,701,602 | 49,493 |
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 Rio de Mouro: common questions
What is the time difference between Istanbul and Rio de Mouro?
Rio de Mouro is 2 hours behind: it uses UTC+1, while Istanbul is on UTC+3.
What time is it in Rio de Mouro when it is 9:00 AM in Istanbul?
When it is 9:00 AM in Istanbul, it is 7:00 AM in Rio de Mouro.
What time is it in Rio de Mouro when it is 6:00 PM in Istanbul?
When it is 6:00 PM in Istanbul, it is 4:00 PM in Rio de Mouro.
When is a good time to call Rio de Mouro from Istanbul?
Between 11:00 AM and 6:00 PM in Istanbul – that is 9:00 AM to 4:00 PM in Rio de Mouro – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Istanbul is it still yesterday in Rio de Mouro?
Before 2:00 AM in Istanbul, the date in Rio de Mouro has not changed yet. From 10:00 PM in Rio de Mouro, it is already the next day in Istanbul.
Does the time difference between Istanbul and Rio de Mouro change?
Yes. The clocks change only in Rio de Mouro. From October 25, 2026, Rio de Mouro will be 3 hours behind Istanbul.
