Guelma to Lisbon: time difference
Lisbon is 1 h behind Guelma. Live clocks for both, the working hours they share, and how each one sits against your own time.
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Guelma 03:21 3:21 AM Lisbon 02:21 2:21 AM You –:–
03:21 3:21 AM
Central European Standard Time · UTC+1
☀️ 06:59 · 🌙 17:30
02:21 2:21 AM
Western European Standard Time · UTC+0
☀️ 07:09 · 🌙 17:33
·
−1 h
Lisbon is 1 h behind Guelma.
When you, Guelma and Lisbon are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇩🇿 Guelma
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
🇵🇹 Lisbon
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 | 🇩🇿 Guelma | 🇵🇹 Lisbon |
|---|---|---|
| Local time | 03:21 | 02:21 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Central European Standard Time | Western European Standard Time |
| UTC offset | UTC+1 | UTC+0 |
| Offset from Guelma | — | −1 h |
| IANA zone | Africa/Algiers | Europe/Lisbon |
| Daylight saving | Not observed | On standard time → UTC+1, Mar 28, 02:00 |
| Sunrise | 06:59 | 07:09 |
| Sunset | 17:30 | 17:33 |
| Daylight | 10 h 31 min | 10 h 23 min |
| People on this clock | 120,847 | 545,923 |
Compare Guelma with another city
More comparisons with Guelma: the time zones next to it and the far side of the clock.
Big time differences
Guelma and Lisbon: common questions
How many hours behind Guelma is Lisbon?
The clocks in Lisbon are 1 hour behind those in Guelma (UTC+0 and UTC+1).
If it is 9:00 AM in Guelma, what time is it in Lisbon?
At 9:00 AM in Guelma, clocks in Lisbon show 8:00 AM.
What time is it in Lisbon when it is 6:00 PM in Guelma?
When it is 6:00 PM in Guelma, it is 5:00 PM in Lisbon.
When is a good time to call Lisbon from Guelma?
Between 10:00 AM and 6:00 PM in Guelma – that is 9:00 AM to 5:00 PM in Lisbon – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Lisbon?
Until 1:00 AM in Guelma it is still the previous day in Lisbon. The other way round, from 11:00 PM in Lisbon it is already the next day in Guelma.
Does the time gap between Guelma and Lisbon change during the year?
Yes – daylight saving time is used in Lisbon but not in Guelma. From March 28, 2027, Lisbon and Guelma will have the same time.
