Sintra to Istanbul: time difference
Istanbul is 2 h ahead of Sintra. 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.
Sintra 15:39 3:39 PM Istanbul 17:39 5:39 PM You –:–
15:39 3:39 PM
Western European Summer Time · UTC+1
☀️ 07:51 · 🌙 18:55
17:39 5:39 PM
GMT+03:00 · UTC+3
☀️ 07:20 · 🌙 18:19
·
+2 h
Istanbul is 2 h ahead of Sintra.
When you, Sintra 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
🇵🇹 Sintra
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
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 0 12 AM 1 1 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇹 Sintra | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 15:39 | 17:39 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Western European Summer Time | GMT+03:00 |
| UTC offset | UTC+1 | UTC+3 |
| Offset from Sintra | — | +2 h |
| IANA zone | Europe/Lisbon | Europe/Istanbul |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:51 | 07:20 |
| Sunset | 18:55 | 18:19 |
| Daylight | 11 h 4 min | 10 h 59 min |
| People on this clock | 385,654 | 15,701,602 |
Compare Sintra with another city
More comparisons with Sintra: the time zones next to it and the far side of the clock.
Big time differences
Sintra and Istanbul: common questions
What is the time difference between Sintra and Istanbul?
Istanbul is 2 hours ahead: it uses UTC+3, while Sintra is on UTC+1.
What time is it in Istanbul at the start of the working day in Sintra?
The working day in Sintra starts at 9:00 AM; in Istanbul it is 11:00 AM at that moment.
If it is 6:00 PM in Sintra, what time is it in Istanbul?
At 6:00 PM in Sintra, clocks in Istanbul show 8:00 PM.
When is a good time to call Istanbul from Sintra?
Between 9:00 AM and 4:00 PM in Sintra – that is 11:00 AM to 6:00 PM in Istanbul – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Istanbul?
From 10:00 PM in Sintra it is already the next day in Istanbul. The other way round, until 2:00 AM in Istanbul it is still the previous day in Sintra.
Does the time difference between Sintra and Istanbul change?
Yes. The clocks change only in Sintra. From October 25, 2026, Istanbul will be 3 hours ahead of Sintra.
