Arecibo to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Arecibo. 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.
Arecibo 13:16 1:16 PM Buenos Aires 14:16 2:16 PM You –:–
13:16 1:16 PM
Atlantic Standard Time · UTC-4
☀️ 06:22 · 🌙 18:04
14:16 2:16 PM
Argentina Standard Time · UTC-3
☀️ 06:10 · 🌙 19:10
·
+1 h
Buenos Aires is 1 h ahead of Arecibo.
When you, Arecibo 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
🇵🇷 Arecibo
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
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇷 Arecibo | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 13:16 | 14:16 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Atlantic Standard Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Arecibo | — | +1 h |
| IANA zone | America/Puerto Rico | America/Argentina/Buenos Aires |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:22 | 06:10 |
| Sunset | 18:04 | 19:10 |
| Daylight | 11 h 42 min | 13 h |
| People on this clock | 39,634 | 2,891,082 |
Compare Arecibo with another city
More comparisons with Arecibo: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Arecibo and Buenos Aires: common questions
How far ahead of Arecibo is Buenos Aires?
Buenos Aires is 1 hour ahead of Arecibo: UTC−3 against UTC−4.
If it is 9:00 AM in Arecibo, what time is it in Buenos Aires?
At 9:00 AM in Arecibo, clocks in Buenos Aires show 10:00 AM.
If it is 6:00 PM in Arecibo, what time is it in Buenos Aires?
At 6:00 PM in Arecibo, clocks in Buenos Aires show 7:00 PM.
When is a good time to call Buenos Aires from Arecibo?
Between 9:00 AM and 5:00 PM in Arecibo – that is 10:00 AM to 6:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Buenos Aires?
From 11:00 PM in Arecibo it is already the next day in Buenos Aires. The other way round, until 1:00 AM in Buenos Aires it is still the previous day in Arecibo.
Does the time difference between Arecibo and Buenos Aires change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
