Offset
The time difference between Buenos Aires and Havana is 1 hour.
Buenos Aires (ART) is ahead of Havana (CDT).
ART: UTC-3
CDT: UTC-4
Havana is currently observing daylight saving time; Buenos Aires is not.
When to schedule
Business-hours overlap: 10 AM–5 PM in Buenos Aires (9 AM–4 PM in Havana).
Both teams are in working hours during this window on weekdays.
Suggested time: 1:00 PM Buenos Aires (12:00 PM Havana).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Argentina
- New Year's DayThu, Jan 1
- CarnivalMon, Feb 16
- CarnivalTue, Feb 17
- Day of Remembrance for Truth and JusticeTue, Mar 24
- Day of the Veterans and Fallen of the Malvinas WarThu, Apr 2
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- May RevolutionMon, May 25
- Anniversary of the Passing of General Martín Miguel de GüemesMon, Jun 15
- General Manuel Belgrano Memorial DaySat, Jun 20
- Independence DayThu, Jul 9
- General José de San Martín Memorial DayMon, Aug 17
- Day of Respect for Cultural DiversityMon, Oct 12
- National Sovereignty DayMon, Nov 23
- Immaculate Conception DayTue, Dec 8
- Christmas DayFri, Dec 25
Cuba
- Triumph of the RevolutionThu, Jan 1
- Victory of Fidel CastroFri, Jan 2
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- Day before the Commemoration of the Assault of the Moncada garrisonSat, Jul 25
- Commemoration of the Assault of the Moncada garrisonSun, Jul 26
- Day after the Commemoration of the Assault of the Moncada garrisonMon, Jul 27
- Independence DaySat, Oct 10
- Christmas DayFri, Dec 25
About these zones
Buenos Aires uses Argentina Time (ART). To call Argentina, dial +54.
Havana uses Cuba Standard Time (CST, or CDT). To call Cuba, dial +53.
Havana is approximately 4,300 miles northwest of Buenos Aires.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Buenos Aires | Havana | Day |
|---|---|---|
| 12:00 am | 11:00 pm | -1 day |
| 1:00 am | 12:00 am | Same day |
| 2:00 am | 1:00 am | Same day |
| 3:00 am | 2:00 am | Same day |
| 4:00 am | 3:00 am | Same day |
| 5:00 am | 4:00 am | Same day |
| 6:00 am | 5:00 am | Same day |
| 7:00 am | 6:00 am | Same day |
| 8:00 am | 7:00 am | Same day |
| 9:00 am | 8:00 am | Same day |
| 10:00 am | 9:00 am | Same day |
| 11:00 am | 10:00 am | Same day |
| 12:00 pm | 11:00 am | Same day |
| 1:00 pm | 12:00 pm | Same day |
| 2:00 pm | 1:00 pm | Same day |
| 3:00 pm | 2:00 pm | Same day |
| 4:00 pm | 3:00 pm | Same day |
| 5:00 pm | 4:00 pm | Same day |
| 6:00 pm | 5:00 pm | Same day |
| 7:00 pm | 6:00 pm | Same day |
| 8:00 pm | 7:00 pm | Same day |
| 9:00 pm | 8:00 pm | Same day |
| 10:00 pm | 9:00 pm | Same day |
| 11:00 pm | 10:00 pm | Same day |
Daylight saving time
Havana observes daylight saving time; Buenos Aires does not. The offset between the two zones changes when Havana transitions: on Sunday, November 1, 2026, clocks fall back from CDT to CST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 7:56 AM
- Sunset
- 5:51 PM
- Day length
- 9h 55m
- Sunrise
- 6:44 AM
- Sunset
- 8:15 PM
- Day length
- 13h 31m
Daylight overlap: 9h 55m — 7:56 AM–5:51 PM in Buenos Aires (6:56 AM–4:51 PM in Havana). Both locations are in daylight during this window.
Airports in these zones
Airports in Argentina Time
- AEP
- EZE
Airports in Cuba Standard Time
- HAV
Related conversions
Common conversions
- What is 9:00 am Buenos Aires in Havana?
- 9:00 am Buenos Aires is 8:00 am Havana.
- What is 12:00 pm Buenos Aires in Havana?
- 12:00 pm Buenos Aires is 11:00 am Havana.
- What is 12:30 pm Buenos Aires in Havana?
- 12:30 pm Buenos Aires is 11:30 am Havana.
- What is 2:00 pm Buenos Aires in Havana?
- 2:00 pm Buenos Aires is 1:00 pm Havana.
- What is 5:00 pm Buenos Aires in Havana?
- 5:00 pm Buenos Aires is 4:00 pm Havana.
- What is 11:30 pm Buenos Aires in Havana?
- 11:30 pm Buenos Aires is 10:30 pm Havana.