Havana to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Havana. 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.
Havana 09:40 9:40 AM Buenos Aires 10:40 10:40 AM You –:–
09:40 9:40 AM
Cuba Daylight Time · UTC-4
☀️ 07:28 · 🌙 19:03
10:40 10:40 AM
Argentina Standard Time · UTC-3
☀️ 06:10 · 🌙 19:10
·
+1 h
Buenos Aires is 1 h ahead of Havana.
When you, Havana 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
🇨🇺 Havana
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 | 🇨🇺 Havana | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 09:40 | 10:40 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Cuba Daylight Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Havana | — | +1 h |
| IANA zone | America/Havana | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC-5, Nov 1, 00:00 | Not observed |
| Sunrise | 07:28 | 06:10 |
| Sunset | 19:03 | 19:10 |
| Daylight | 11 h 35 min | 13 h |
| People on this clock | 2,141,993 | 2,891,082 |
Compare Havana with another city
More comparisons with Havana: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Havana and Buenos Aires: common questions
How many hours ahead of Havana is Buenos Aires?
The clocks in Buenos Aires are 1 hour ahead of those in Havana (UTC−3 and UTC−4).
If it is 9:00 AM in Havana, what time is it in Buenos Aires?
At 9:00 AM in Havana, clocks in Buenos Aires show 10:00 AM.
What time is it in Buenos Aires at the end of the working day in Havana?
The working day in Havana ends at 6:00 PM; in Buenos Aires it is 7:00 PM at that moment.
When do working hours in Havana and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Havana, which is 10:00 AM to 6:00 PM in Buenos Aires.
From what time in Havana is it tomorrow in Buenos Aires?
Once it is 11:00 PM in Havana, the date in Buenos Aires has already changed. Until 1:00 AM in Buenos Aires, it is still the previous day in Havana.
Is the time difference between Havana and Buenos Aires the same all year?
No. Only Havana switches to summer time, so the gap changes twice a year. From November 1, 2026, Buenos Aires will be 2 hours ahead of Havana.
