Buenos Aires to Rio de Mouro: time difference
Rio de Mouro 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.
🇵🇹 Rio de Mouro, Portugal
07
- Western European Summer Time
- UTC+1
- Daytime
☀️ 07:51 · 🌙 18:55 · 11 h 4 min
+4 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Buenos Aires 11:49 11:49 AM Rio de Mouro 15:49 3:49 PM You –:–
11:49 11:49 AM
Argentina Standard Time · UTC-3
☀️ 06:07 · 🌙 19:11
15:49 3:49 PM
Western European Summer Time · UTC+1
☀️ 07:51 · 🌙 18:55
·
+4 h
Rio de Mouro is 4 h ahead of Buenos Aires.
When you, Buenos Aires and Rio de Mouro 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
🇵🇹 Rio de Mouro
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 | 🇵🇹 Rio de Mouro |
|---|---|---|
| Local time | 11:49 | 15:49 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 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 | 06:07 | 07:51 |
| Sunset | 19:11 | 18:55 |
| Daylight | 13 h 4 min | 11 h 4 min |
| People on this clock | 2,891,082 | 49,493 |
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 Rio de Mouro: common questions
What is the time difference between Buenos Aires and Rio de Mouro?
Rio de Mouro is 4 hours ahead: it uses UTC+1, while Buenos Aires is on UTC−3.
What time is it in Rio de Mouro at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Rio de Mouro it is 1:00 PM at that moment.
What time is it in Rio de Mouro when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 10:00 PM in Rio de Mouro.
When do working hours in Buenos Aires and in Rio de Mouro 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 Rio de Mouro.
When does the date change in Rio de Mouro compared with Buenos Aires?
The new day starts in Rio de Mouro earlier: at 8:00 PM in Buenos Aires it is already midnight there. Until 4:00 AM in Rio de Mouro, Buenos Aires is still on the previous day.
Is the time difference between Buenos Aires and Rio de Mouro the same all year?
No. Only Rio de Mouro switches to summer time, so the gap changes twice a year. From October 25, 2026, Rio de Mouro will be 3 hours ahead of Buenos Aires.
