Buenos Aires to Guanacaste: time difference
Guanacaste 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 04:17 4:17 AM Guanacaste 01:17 1:17 AM You –:–
04:17 4:17 AM
Argentina Standard Time · UTC-3
☀️ 06:12 · 🌙 19:08
01:17 1:17 AM
Central Standard Time · UTC-6
☀️ 05:31 · 🌙 17:25
·
−3 h
Guanacaste is 3 h behind Buenos Aires.
When you, Buenos Aires and Guanacaste 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
🇨🇷 Guanacaste
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 | 🇨🇷 Guanacaste |
|---|---|---|
| Local time | 04:17 | 01:17 |
| Local date | Thursday, October 15, 2026 | Thursday, October 15, 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 | 06:12 | 05:31 |
| Sunset | 19:08 | 17:25 |
| Daylight | 12 h 56 min | 11 h 55 min |
| People on this clock | 2,891,082 | 1,823 |
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 Guanacaste: common questions
How many hours behind Buenos Aires is Guanacaste?
The clocks in Guanacaste are 3 hours behind those in Buenos Aires (UTC−6 and UTC−3).
What time is it in Guanacaste when it is 9:00 AM in Buenos Aires?
When it is 9:00 AM in Buenos Aires, it is 6:00 AM in Guanacaste.
What time is it in Guanacaste when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 3:00 PM in Guanacaste.
When is a good time to call Guanacaste from Buenos Aires?
Between 12:00 PM and 6:00 PM in Buenos Aires – that is 9:00 AM to 3:00 PM in Guanacaste – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Guanacaste compared with Buenos Aires?
The new day starts in Guanacaste later: until 3:00 AM in Buenos Aires, it is still the previous day there. From 9:00 PM in Guanacaste, Buenos Aires is already on the next day.
Does the time difference between Buenos Aires and Guanacaste change?
No. Neither place uses daylight saving time, so the difference stays 3 hours all year.
