Istanbul to Castelldefels: time difference
Castelldefels is 1 h behind Istanbul. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇪🇸 Castelldefels, Spain
49
- Central European Summer Time
- UTC+2
- Daytime
☀️ 08:08 · 🌙 19:07 · 10 h 58 min
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Istanbul 13:00 1:00 PM Castelldefels 12:00 12:00 PM You –:–
13:00 1:00 PM
GMT+03:00 · UTC+3
☀️ 07:20 · 🌙 18:19
12:00 12:00 PM
Central European Summer Time · UTC+2
☀️ 08:08 · 🌙 19:07
·
−1 h
Castelldefels is 1 h behind Istanbul.
When you, Istanbul and Castelldefels 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
🇪🇸 Castelldefels
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 | 🇹🇷 Istanbul | 🇪🇸 Castelldefels |
|---|---|---|
| Local time | 13:00 | 12:00 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | GMT+03:00 | Central European Summer Time |
| UTC offset | UTC+3 | UTC+2 |
| Offset from Istanbul | — | −1 h |
| IANA zone | Europe/Istanbul | Europe/Madrid |
| Daylight saving | Not observed | On summer time → UTC+1, Oct 25, 02:00 |
| Sunrise | 07:20 | 08:08 |
| Sunset | 18:19 | 19:07 |
| Daylight | 10 h 59 min | 10 h 58 min |
| People on this clock | 15,701,602 | 68,427 |
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 Castelldefels: common questions
What is the time difference between Istanbul and Castelldefels?
Castelldefels is 1 hour behind: it uses UTC+2, while Istanbul is on UTC+3.
What time is it in Castelldefels when it is 9:00 AM in Istanbul?
When it is 9:00 AM in Istanbul, it is 8:00 AM in Castelldefels.
If it is 6:00 PM in Istanbul, what time is it in Castelldefels?
At 6:00 PM in Istanbul, clocks in Castelldefels show 5:00 PM.
When is a good time to call Castelldefels from Istanbul?
Between 10:00 AM and 6:00 PM in Istanbul – that is 9:00 AM to 5:00 PM in Castelldefels – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Castelldefels?
Until 1:00 AM in Istanbul it is still the previous day in Castelldefels. The other way round, from 11:00 PM in Castelldefels it is already the next day in Istanbul.
Is the time difference between Istanbul and Castelldefels the same all year?
No. Only Castelldefels switches to summer time, so the gap changes twice a year. From October 25, 2026, Castelldefels will be 2 hours behind Istanbul.
