Buenos Aires to Portugal: time difference
Portugal is 4 h ahead of Buenos Aires. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Buenos Aires 04:40 4:40 AM Portugal 08:40 8:40 AM You –:–
04:40 4:40 AM
Argentina Standard Time · UTC-3
☀️ 06:19 · 🌙 19:04
08:40 8:40 AM
Western European Summer Time · UTC+1
☀️ 07:41 · 🌙 19:07
·
+4 h
Portugal is 4 h ahead of Buenos Aires.
When you, Buenos Aires and Portugal are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇦🇷 Buenos Aires
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
🇵🇹 Portugal
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 0 12 AM 1 1 AM 2 2 AM 3 3 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇵🇹 Portugal |
|---|---|---|
| Local time | 04:40 | 08:40 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Argentina Standard Time | Western European Summer Time |
| UTC offset | UTC-3 | UTC+1 |
| Offset from Buenos Aires | — | +4 h |
| IANA zone | America/Argentina/Buenos Aires | Europe/Lisbon |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 06:19 | 07:41 |
| Sunset | 19:04 | 19:07 |
| Daylight | 12 h 45 min | 11 h 26 min |
| People on this clock | 2,891,082 | 10,347,892 |
Compare Buenos Aires with another city
More comparisons with Buenos Aires: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Buenos Aires and Portugal: common questions
How far ahead of Buenos Aires is Portugal?
Portugal is 4 hours ahead of Buenos Aires: UTC+1 against UTC−3.
If it is 9:00 AM in Buenos Aires, what time is it in Portugal?
At 9:00 AM in Buenos Aires, clocks in Portugal show 1:00 PM.
If it is 6:00 PM in Buenos Aires, what time is it in Portugal?
At 6:00 PM in Buenos Aires, clocks in Portugal show 10:00 PM.
When do working hours in Buenos Aires and in Portugal overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 2:00 PM in Buenos Aires, which is 1:00 PM to 6:00 PM in Portugal.
When does the date change in Portugal compared with Buenos Aires?
The new day starts in Portugal earlier: at 8:00 PM in Buenos Aires it is already midnight there. Until 4:00 AM in Portugal, Buenos Aires is still on the previous day.
Is the time difference between Buenos Aires and Portugal the same all year?
No. Only Portugal switches to summer time, so the gap changes twice a year. From October 25, 2026, Portugal will be 3 hours ahead of Buenos Aires.
