Rio Branco to Buenos Aires: time difference
Buenos Aires is 2 h ahead of Rio Branco. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇦🇷 Buenos Aires, Argentina
38
- Argentina Standard Time
- UTC-3
- Daytime
☀️ 05:57 · 🌙 19:19 · 13 h 22 min
+2 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Rio Branco 16:00 4:00 PM Buenos Aires 18:00 6:00 PM You –:–
16:00 4:00 PM
Acre Standard Time · UTC-5
☀️ 05:03 · 🌙 17:29
18:00 6:00 PM
Argentina Standard Time · UTC-3
☀️ 05:57 · 🌙 19:19
·
+2 h
Buenos Aires is 2 h ahead of Rio Branco.
When you, Rio Branco 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
🇧🇷 Rio Branco
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
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 0 12 AM 1 1 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Rio Branco | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 16:00 | 18:00 |
| Local date | Wednesday, October 28, 2026 | Wednesday, October 28, 2026 |
| Time zone | Acre Standard Time | Argentina Standard Time |
| UTC offset | UTC-5 | UTC-3 |
| Offset from Rio Branco | — | +2 h |
| IANA zone | America/Rio Branco | America/Argentina/Buenos Aires |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:03 | 05:57 |
| Sunset | 17:29 | 19:19 |
| Daylight | 12 h 26 min | 13 h 22 min |
| People on this clock | 364,756 | 2,891,082 |
Compare Rio Branco with another city
More comparisons with Rio Branco: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Rio Branco and Buenos Aires: common questions
What is the time difference between Rio Branco and Buenos Aires?
Buenos Aires is 2 hours ahead: it uses UTC−3, while Rio Branco is on UTC−5.
What time is it in Buenos Aires when it is 9:00 AM in Rio Branco?
When it is 9:00 AM in Rio Branco, it is 11:00 AM in Buenos Aires.
What time is it in Buenos Aires when it is 6:00 PM in Rio Branco?
When it is 6:00 PM in Rio Branco, it is 8:00 PM in Buenos Aires.
When is a good time to call Buenos Aires from Rio Branco?
Between 9:00 AM and 4:00 PM in Rio Branco – that is 11:00 AM to 6:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
From what time in Rio Branco is it tomorrow in Buenos Aires?
Once it is 10:00 PM in Rio Branco, the date in Buenos Aires has already changed. Until 2:00 AM in Buenos Aires, it is still the previous day in Rio Branco.
Does the time gap between Rio Branco and Buenos Aires change during the year?
No, the clocks change neither in Rio Branco nor in Buenos Aires, so the gap is 2 hours all year round.
