Buenos Aires to Arecibo: time difference
Arecibo 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 15:41 3:41 PM Arecibo 14:41 2:41 PM You –:–
15:41 3:41 PM
Argentina Standard Time · UTC-3
☀️ 06:10 · 🌙 19:10
14:41 2:41 PM
Atlantic Standard Time · UTC-4
☀️ 06:22 · 🌙 18:04
·
−1 h
Arecibo is 1 h behind Buenos Aires.
When you, Buenos Aires and Arecibo 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
🇵🇷 Arecibo
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 | 🇵🇷 Arecibo |
|---|---|---|
| Local time | 15:41 | 14:41 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 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/Puerto Rico |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:10 | 06:22 |
| Sunset | 19:10 | 18:04 |
| Daylight | 13 h | 11 h 42 min |
| People on this clock | 2,891,082 | 39,634 |
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 Arecibo: common questions
What is the time difference between Buenos Aires and Arecibo?
Arecibo is 1 hour behind: it uses UTC−4, while Buenos Aires is on UTC−3.
What time is it in Arecibo at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Arecibo it is 8:00 AM at that moment.
If it is 6:00 PM in Buenos Aires, what time is it in Arecibo?
At 6:00 PM in Buenos Aires, clocks in Arecibo show 5:00 PM.
When do working hours in Buenos Aires and in Arecibo 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 Arecibo.
Until what time in Buenos Aires is it still yesterday in Arecibo?
Before 1:00 AM in Buenos Aires, the date in Arecibo has not changed yet. From 11:00 PM in Arecibo, it is already the next day in Buenos Aires.
Is the time difference between Buenos Aires and Arecibo the same all year?
Yes. Neither Buenos Aires nor Arecibo switches to summer time, so the gap is always 1 hour.
