Algarve to Buenos Aires: time difference
Buenos Aires is 4 h behind Algarve. Live clocks for both, the working hours they share, and how each one sits against your own time.
−4 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Algarve 01:55 1:55 AM Buenos Aires 21:55 9:55 PM You –:–
01:55 1:55 AM
Western European Summer Time · UTC+1
☀️ 07:46 · 🌙 18:51
21:55 9:55 PM
Argentina Standard Time · UTC-3
☀️ 06:07 · 🌙 19:11
·
−4 h
Buenos Aires is 4 h behind Algarve.
When you, Algarve and Buenos Aires are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇵🇹 Algarve
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
🇦🇷 Buenos Aires
20 8 PM 21 9 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇹 Algarve | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 01:55 | 21:55 |
| Local date | Tuesday, October 20, 2026 | Monday, October 19, 2026 |
| Time zone | Western European Summer Time | Argentina Standard Time |
| UTC offset | UTC+1 | UTC-3 |
| Offset from Algarve | — | −4 h |
| IANA zone | Europe/Lisbon | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:46 | 06:07 |
| Sunset | 18:51 | 19:11 |
| Daylight | 11 h 5 min | 13 h 4 min |
| People on this clock | — | 2,891,082 |
Compare Algarve with another city
More comparisons with Algarve: the time zones next to it and the far side of the clock.
Big time differences
Algarve and Buenos Aires: common questions
What is the time difference between Algarve and Buenos Aires?
Buenos Aires is 4 hours behind: it uses UTC−3, while Algarve is on UTC+1.
What time is it in Buenos Aires at the start of the working day in Algarve?
The working day in Algarve starts at 9:00 AM; in Buenos Aires it is 5:00 AM at that moment.
What time is it in Buenos Aires at the end of the working day in Algarve?
The working day in Algarve ends at 6:00 PM; in Buenos Aires it is 2:00 PM at that moment.
When is a good time to call Buenos Aires from Algarve?
Between 1:00 PM and 6:00 PM in Algarve – that is 9:00 AM to 2:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Buenos Aires compared with Algarve?
The new day starts in Buenos Aires later: until 4:00 AM in Algarve, it is still the previous day there. From 8:00 PM in Buenos Aires, Algarve is already on the next day.
Is the time difference between Algarve and Buenos Aires the same all year?
No. Only Algarve switches to summer time, so the gap changes twice a year. From October 25, 2026, Buenos Aires will be 3 hours behind Algarve.
