Buenos Aires to San Jose: time difference
San Jose is 3 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 22:58 10:58 PM San Jose 19:58 7:58 PM You –:–
22:58 10:58 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
19:58 7:58 PM
Central Standard Time · UTC-6
☀️ 05:25 · 🌙 17:23
·
−3 h
San Jose is 3 h behind Buenos Aires.
When you, Buenos Aires and San Jose 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
🇨🇷 San Jose
21 9 PM 22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇨🇷 San Jose |
|---|---|---|
| Local time | 22:58 | 19:58 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 2026 |
| Time zone | Argentina Standard Time | Central Standard Time |
| UTC offset | UTC-3 | UTC-6 |
| Offset from Buenos Aires | — | −3 h |
| IANA zone | America/Argentina/Buenos Aires | America/Costa Rica |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:20 | 05:25 |
| Sunset | 19:03 | 17:23 |
| Daylight | 12 h 43 min | 11 h 58 min |
| People on this clock | 2,891,082 | 342,188 |
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 San Jose: common questions
What is the time difference between Buenos Aires and San Jose?
San Jose is 3 hours behind: it uses UTC−6, while Buenos Aires is on UTC−3.
If it is 9:00 AM in Buenos Aires, what time is it in San Jose?
At 9:00 AM in Buenos Aires, clocks in San Jose show 6:00 AM.
What time is it in San Jose at the end of the working day in Buenos Aires?
The working day in Buenos Aires ends at 6:00 PM; in San Jose it is 3:00 PM at that moment.
When is a good time to call San Jose from Buenos Aires?
Between 12:00 PM and 6:00 PM in Buenos Aires – that is 9:00 AM to 3:00 PM in San Jose – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Buenos Aires is it still yesterday in San Jose?
Before 3:00 AM in Buenos Aires, the date in San Jose has not changed yet. From 9:00 PM in San Jose, it is already the next day in Buenos Aires.
Does the time difference between Buenos Aires and San Jose change?
No. Neither place uses daylight saving time, so the difference stays 3 hours all year.
