Guanacaste to Buenos Aires: time difference
Buenos Aires is 3 h ahead of Guanacaste. Live clocks for both, the working hours they share, and how each one sits against your own time.
+3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Guanacaste 23:54 11:54 PM Buenos Aires 02:54 2:54 AM You –:–
23:54 11:54 PM
Central Standard Time · UTC-6
☀️ 05:31 · 🌙 17:25
02:54 2:54 AM
Argentina Standard Time · UTC-3
☀️ 06:12 · 🌙 19:08
·
+3 h
Buenos Aires is 3 h ahead of Guanacaste.
When you, Guanacaste 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
🇨🇷 Guanacaste
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 | 🇨🇷 Guanacaste | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 23:54 | 02:54 |
| Local date | Wednesday, October 14, 2026 | Thursday, October 15, 2026 |
| Time zone | Central Standard Time | Argentina Standard Time |
| UTC offset | UTC-6 | UTC-3 |
| Offset from Guanacaste | — | +3 h |
| IANA zone | America/Costa Rica | America/Argentina/Buenos Aires |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:31 | 06:12 |
| Sunset | 17:25 | 19:08 |
| Daylight | 11 h 55 min | 12 h 56 min |
| People on this clock | 1,823 | 2,891,082 |
Compare Guanacaste with another city
More comparisons with Guanacaste: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Guanacaste and Buenos Aires: common questions
What is the time difference between Guanacaste and Buenos Aires?
Buenos Aires is 3 hours ahead: it uses UTC−3, while Guanacaste is on UTC−6.
What time is it in Buenos Aires when it is 9:00 AM in Guanacaste?
When it is 9:00 AM in Guanacaste, it is 12:00 PM in Buenos Aires.
If it is 6:00 PM in Guanacaste, what time is it in Buenos Aires?
At 6:00 PM in Guanacaste, clocks in Buenos Aires show 9:00 PM.
When do working hours in Guanacaste and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 3:00 PM in Guanacaste, which is 12:00 PM to 6:00 PM in Buenos Aires.
From what time in Guanacaste is it tomorrow in Buenos Aires?
Once it is 9:00 PM in Guanacaste, the date in Buenos Aires has already changed. Until 3:00 AM in Buenos Aires, it is still the previous day in Guanacaste.
Does the time difference between Guanacaste and Buenos Aires change?
No. Neither place uses daylight saving time, so the difference stays 3 hours all year.
