Istanbul to Quarteira: time difference
Quarteira is 2 h behind Istanbul. Live clocks for both, the working hours they share, and how each one sits against your own time.
−2 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Istanbul 05:49 5:49 AM Quarteira 03:49 3:49 AM You –:–
05:49 5:49 AM
GMT+03:00 · UTC+3
☀️ 07:21 · 🌙 18:18
03:49 3:49 AM
Western European Summer Time · UTC+1
☀️ 07:45 · 🌙 18:51
·
−2 h
Quarteira is 2 h behind Istanbul.
When you, Istanbul and Quarteira 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
🇵🇹 Quarteira
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 | 🇵🇹 Quarteira |
|---|---|---|
| Local time | 05:49 | 03:49 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 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 | 07:21 | 07:45 |
| Sunset | 18:18 | 18:51 |
| Daylight | 10 h 57 min | 11 h 6 min |
| People on this clock | 15,701,602 | 24,421 |
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 Quarteira: common questions
How many hours behind Istanbul is Quarteira?
The clocks in Quarteira are 2 hours behind those in Istanbul (UTC+1 and UTC+3).
What time is it in Quarteira at the start of the working day in Istanbul?
The working day in Istanbul starts at 9:00 AM; in Quarteira it is 7:00 AM at that moment.
If it is 6:00 PM in Istanbul, what time is it in Quarteira?
At 6:00 PM in Istanbul, clocks in Quarteira show 4:00 PM.
When do working hours in Istanbul and in Quarteira overlap?
Working hours (9:00 AM–6:00 PM) overlap from 11:00 AM to 6:00 PM in Istanbul, which is 9:00 AM to 4:00 PM in Quarteira.
When is it still the previous day in Quarteira?
Until 2:00 AM in Istanbul it is still the previous day in Quarteira. The other way round, from 10:00 PM in Quarteira it is already the next day in Istanbul.
Does the time difference between Istanbul and Quarteira change?
Yes. The clocks change only in Quarteira. From October 25, 2026, Quarteira will be 3 hours behind Istanbul.
