Barcelona to Constantine: time difference
Constantine is 1 h behind Barcelona. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇩🇿 Constantine, Algeria
09
- Central European Standard Time
- UTC+1
- Night
☀️ 06:44 · 🌙 17:55 · 11 h 12 min
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Barcelona 05:20 5:20 AM Constantine 04:20 4:20 AM You –:–
05:20 5:20 AM
Central European Summer Time · UTC+2
☀️ 08:07 · 🌙 19:08
04:20 4:20 AM
Central European Standard Time · UTC+1
☀️ 06:44 · 🌙 17:55
·
−1 h
Constantine is 1 h behind Barcelona.
When you, Barcelona and Constantine are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇪🇸 Barcelona
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
🇩🇿 Constantine
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 | 🇪🇸 Barcelona | 🇩🇿 Constantine |
|---|---|---|
| Local time | 05:20 | 04:20 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Central European Summer Time | Central European Standard Time |
| UTC offset | UTC+2 | UTC+1 |
| Offset from Barcelona | — | −1 h |
| IANA zone | Europe/Madrid | Africa/Algiers |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 08:07 | 06:44 |
| Sunset | 19:08 | 17:55 |
| Daylight | 11 h 1 min | 11 h 12 min |
| People on this clock | 1,660,122 | 448,374 |
Compare Barcelona with another city
More comparisons with Barcelona: the time zones next to it and the far side of the clock.
Big time differences
Barcelona and Constantine: common questions
What is the time difference between Barcelona and Constantine?
Constantine is 1 hour behind: it uses UTC+1, while Barcelona is on UTC+2.
If it is 9:00 AM in Barcelona, what time is it in Constantine?
At 9:00 AM in Barcelona, clocks in Constantine show 8:00 AM.
What time is it in Constantine when it is 6:00 PM in Barcelona?
When it is 6:00 PM in Barcelona, it is 5:00 PM in Constantine.
When do working hours in Barcelona and in Constantine overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Barcelona, which is 9:00 AM to 5:00 PM in Constantine.
When does the date change in Constantine compared with Barcelona?
The new day starts in Constantine later: until 1:00 AM in Barcelona, it is still the previous day there. From 11:00 PM in Constantine, Barcelona is already on the next day.
Is the time difference between Barcelona and Constantine the same all year?
No. Only Barcelona switches to summer time, so the gap changes twice a year. From October 25, 2026, Constantine and Barcelona will have the same time.
