Istanbul to Lousã: time difference
Lousã 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 23:27 11:27 PM Lousã 21:27 9:27 PM You –:–
23:27 11:27 PM
GMT+03:00 · UTC+3
☀️ 07:21 · 🌙 18:18
21:27 9:27 PM
Western European Summer Time · UTC+1
☀️ 07:49 · 🌙 18:48
·
−2 h
Lousã is 2 h behind Istanbul.
When you, Istanbul and Lousã 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
🇵🇹 Lousã
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 | 🇵🇹 Lousã |
|---|---|---|
| Local time | 23:27 | 21:27 |
| 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 | 07:49 |
| Sunset | 18:18 | 18:48 |
| Daylight | 10 h 57 min | 10 h 59 min |
| People on this clock | 15,701,602 | 17,007 |
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 Lousã: common questions
What is the time difference between Istanbul and Lousã?
Lousã is 2 hours behind: it uses UTC+1, while Istanbul is on UTC+3.
What time is it in Lousã at the start of the working day in Istanbul?
The working day in Istanbul starts at 9:00 AM; in Lousã it is 7:00 AM at that moment.
What time is it in Lousã when it is 6:00 PM in Istanbul?
When it is 6:00 PM in Istanbul, it is 4:00 PM in Lousã.
When do working hours in Istanbul and in Lousã 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 Lousã.
When is it still the previous day in Lousã?
Until 2:00 AM in Istanbul it is still the previous day in Lousã. The other way round, from 10:00 PM in Lousã it is already the next day in Istanbul.
Is the time difference between Istanbul and Lousã the same all year?
No. Only Lousã switches to summer time, so the gap changes twice a year. From October 25, 2026, Lousã will be 3 hours behind Istanbul.
