Buenos Aires to Rio Claro: time difference
Rio Claro is 1 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 08:51 8:51 AM Rio Claro 07:51 7:51 AM You –:–
08:51 8:51 AM
Argentina Standard Time · UTC-3
☀️ 06:09 · 🌙 19:11
07:51 7:51 AM
Atlantic Standard Time · UTC-4
☀️ 05:54 · 🌙 17:47
·
−1 h
Rio Claro is 1 h behind Buenos Aires.
When you, Buenos Aires and Rio Claro 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 Claro
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 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇹🇹 Rio Claro |
|---|---|---|
| Local time | 08:51 | 07:51 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Argentina Standard Time | Atlantic Standard Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Buenos Aires | — | −1 h |
| IANA zone | America/Argentina/Buenos Aires | America/Port of Spain |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:09 | 05:54 |
| Sunset | 19:11 | 17:47 |
| Daylight | 13 h 2 min | 11 h 53 min |
| People on this clock | 2,891,082 | 35,650 |
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 Claro: common questions
How far behind Buenos Aires is Rio Claro?
Rio Claro is 1 hour behind Buenos Aires: UTC−4 against UTC−3.
If it is 9:00 AM in Buenos Aires, what time is it in Rio Claro?
At 9:00 AM in Buenos Aires, clocks in Rio Claro show 8:00 AM.
If it is 6:00 PM in Buenos Aires, what time is it in Rio Claro?
At 6:00 PM in Buenos Aires, clocks in Rio Claro show 5:00 PM.
When do working hours in Buenos Aires and in Rio Claro overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Buenos Aires, which is 9:00 AM to 5:00 PM in Rio Claro.
When does the date change in Rio Claro compared with Buenos Aires?
The new day starts in Rio Claro later: until 1:00 AM in Buenos Aires, it is still the previous day there. From 11:00 PM in Rio Claro, Buenos Aires is already on the next day.
Is the time difference between Buenos Aires and Rio Claro the same all year?
Yes. Neither Buenos Aires nor Rio Claro switches to summer time, so the gap is always 1 hour.
