Buenos Aires to Rio Branco: time difference
Rio Branco is 2 h behind 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 21:10 9:10 PM Rio Branco 19:10 7:10 PM You –:–
21:10 9:10 PM
Argentina Standard Time · UTC-3
☀️ 05:57 · 🌙 19:19
19:10 7:10 PM
Acre Standard Time · UTC-5
☀️ 05:03 · 🌙 17:29
·
−2 h
Rio Branco is 2 h behind Buenos Aires.
When you, Buenos Aires and Rio Branco 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 Branco
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 20 8 PM 21 9 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇧🇷 Rio Branco |
|---|---|---|
| Local time | 21:10 | 19:10 |
| Local date | Wednesday, October 28, 2026 | Wednesday, October 28, 2026 |
| Time zone | Argentina Standard Time | Acre Standard Time |
| UTC offset | UTC-3 | UTC-5 |
| Offset from Buenos Aires | — | −2 h |
| IANA zone | America/Argentina/Buenos Aires | America/Rio Branco |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:57 | 05:03 |
| Sunset | 19:19 | 17:29 |
| Daylight | 13 h 22 min | 12 h 26 min |
| People on this clock | 2,891,082 | 364,756 |
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 Branco: common questions
How many hours behind Buenos Aires is Rio Branco?
The clocks in Rio Branco are 2 hours behind those in Buenos Aires (UTC−5 and UTC−3).
What time is it in Rio Branco at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Rio Branco it is 7:00 AM at that moment.
If it is 6:00 PM in Buenos Aires, what time is it in Rio Branco?
At 6:00 PM in Buenos Aires, clocks in Rio Branco show 4:00 PM.
Is there a time when both Buenos Aires and Rio Branco are at work?
Yes: from 11:00 AM to 6:00 PM in Buenos Aires (9:00 AM to 4:00 PM in Rio Branco), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Buenos Aires is it still yesterday in Rio Branco?
Before 2:00 AM in Buenos Aires, the date in Rio Branco has not changed yet. From 10:00 PM in Rio Branco, it is already the next day in Buenos Aires.
Does the time gap between Buenos Aires and Rio Branco change during the year?
No, the clocks change neither in Buenos Aires nor in Rio Branco, so the gap is 2 hours all year round.
