Carolina to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Carolina. Live clocks for both, the working hours they share, and how each one sits against your own time.
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Carolina 22:52 10:52 PM Buenos Aires 23:52 11:52 PM You –:–
22:52 10:52 PM
Atlantic Standard Time · UTC-4
☀️ 06:17 · 🌙 18:07
23:52 11:52 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
·
+1 h
Buenos Aires is 1 h ahead of Carolina.
When you, Carolina 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
🇵🇷 Carolina
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 | 🇵🇷 Carolina | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 22:52 | 23:52 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 2026 |
| Time zone | Atlantic Standard Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Carolina | — | +1 h |
| IANA zone | America/Puerto Rico | America/Argentina/Buenos Aires |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:17 | 06:20 |
| Sunset | 18:07 | 19:03 |
| Daylight | 11 h 50 min | 12 h 43 min |
| People on this clock | 138,304 | 2,891,082 |
Compare Carolina with another city
More comparisons with Carolina: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Carolina and Buenos Aires: common questions
What is the time difference between Carolina and Buenos Aires?
Buenos Aires is 1 hour ahead: it uses UTC−3, while Carolina is on UTC−4.
If it is 9:00 AM in Carolina, what time is it in Buenos Aires?
At 9:00 AM in Carolina, clocks in Buenos Aires show 10:00 AM.
If it is 6:00 PM in Carolina, what time is it in Buenos Aires?
At 6:00 PM in Carolina, clocks in Buenos Aires show 7:00 PM.
When do working hours in Carolina and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Carolina, which is 10:00 AM to 6:00 PM in Buenos Aires.
When does the date change in Buenos Aires compared with Carolina?
The new day starts in Buenos Aires earlier: at 11:00 PM in Carolina it is already midnight there. Until 1:00 AM in Buenos Aires, Carolina is still on the previous day.
Does the time difference between Carolina and Buenos Aires change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
