Buenos Aires to Puerto Rico: time difference
Puerto Rico 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 22:48 10:48 PM Puerto Rico 21:48 9:48 PM You –:–
22:48 10:48 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
21:48 9:48 PM
Atlantic Standard Time · UTC-4
☀️ 06:17 · 🌙 18:08
·
−1 h
Puerto Rico is 1 h behind Buenos Aires.
When you, Buenos Aires and Puerto Rico 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
🇵🇷 Puerto Rico
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 | 🇵🇷 Puerto Rico |
|---|---|---|
| Local time | 22:48 | 21:48 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 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 | 06:20 | 06:17 |
| Sunset | 19:03 | 18:08 |
| Daylight | 12 h 43 min | 11 h 50 min |
| People on this clock | 2,891,082 | 3,285,874 |
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 Puerto Rico: common questions
What is the time difference between Buenos Aires and Puerto Rico?
Puerto Rico is 1 hour behind: it uses UTC−4, while Buenos Aires is on UTC−3.
What time is it in Puerto Rico at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Puerto Rico it is 8:00 AM at that moment.
What time is it in Puerto Rico at the end of the working day in Buenos Aires?
The working day in Buenos Aires ends at 6:00 PM; in Puerto Rico it is 5:00 PM at that moment.
Is there a time when both Buenos Aires and Puerto Rico are at work?
Yes: from 10:00 AM to 6:00 PM in Buenos Aires (9:00 AM to 5:00 PM in Puerto Rico), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Buenos Aires is it still yesterday in Puerto Rico?
Before 1:00 AM in Buenos Aires, the date in Puerto Rico has not changed yet. From 11:00 PM in Puerto Rico, it is already the next day in Buenos Aires.
Does the time difference between Buenos Aires and Puerto Rico change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
