Costa Rica to Buenos Aires: time difference
Buenos Aires is 3 h ahead of Costa Rica. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇦🇷 Buenos Aires, Argentina
54
- Argentina Standard Time
- UTC-3
- Daytime
☀️ 06:19 · 🌙 19:04 · 12 h 45 min
+3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Costa Rica 05:59 5:59 AM Buenos Aires 08:59 8:59 AM You –:–
05:59 5:59 AM
Central Standard Time · UTC-6
☀️ 05:25 · 🌙 17:23
08:59 8:59 AM
Argentina Standard Time · UTC-3
☀️ 06:19 · 🌙 19:04
·
+3 h
Buenos Aires is 3 h ahead of Costa Rica.
When you, Costa Rica 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
🇨🇷 Costa Rica
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
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 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇨🇷 Costa Rica | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 05:59 | 08:59 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Central Standard Time | Argentina Standard Time |
| UTC offset | UTC-6 | UTC-3 |
| Offset from Costa Rica | — | +3 h |
| IANA zone | America/Costa Rica | America/Argentina/Buenos Aires |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:25 | 06:19 |
| Sunset | 17:23 | 19:04 |
| Daylight | 11 h 57 min | 12 h 45 min |
| People on this clock | 5,044,197 | 2,891,082 |
Compare Costa Rica with another city
More comparisons with Costa Rica: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Costa Rica and Buenos Aires: common questions
What is the time difference between Costa Rica and Buenos Aires?
Buenos Aires is 3 hours ahead: it uses UTC−3, while Costa Rica is on UTC−6.
What time is it in Buenos Aires when it is 9:00 AM in Costa Rica?
When it is 9:00 AM in Costa Rica, it is 12:00 PM in Buenos Aires.
What time is it in Buenos Aires when it is 6:00 PM in Costa Rica?
When it is 6:00 PM in Costa Rica, it is 9:00 PM in Buenos Aires.
When is a good time to call Buenos Aires from Costa Rica?
Between 9:00 AM and 3:00 PM in Costa Rica – that is 12:00 PM to 6:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
From what time in Costa Rica is it tomorrow in Buenos Aires?
Once it is 9:00 PM in Costa Rica, the date in Buenos Aires has already changed. Until 3:00 AM in Buenos Aires, it is still the previous day in Costa Rica.
Does the time gap between Costa Rica and Buenos Aires change during the year?
No, the clocks change neither in Costa Rica nor in Buenos Aires, so the gap is 3 hours all year round.
