Santa Lucia to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Santa Lucia. 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.
Santa Lucia 09:43 9:43 AM Buenos Aires 10:43 10:43 AM You –:–
09:43 9:43 AM
Cuba Daylight Time · UTC-4
☀️ 07:06 · 🌙 18:44
10:43 10:43 AM
Argentina Standard Time · UTC-3
☀️ 06:10 · 🌙 19:10
·
+1 h
Buenos Aires is 1 h ahead of Santa Lucia.
When you, Santa Lucia 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
🇨🇺 Santa Lucia
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 | 🇨🇺 Santa Lucia | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 09:43 | 10:43 |
| 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 Santa Lucia | — | +1 h |
| IANA zone | America/Havana | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC-5, Nov 1, 00:00 | Not observed |
| Sunrise | 07:06 | 06:10 |
| Sunset | 18:44 | 19:10 |
| Daylight | 11 h 38 min | 13 h |
| People on this clock | — | 2,891,082 |
Compare Santa Lucia with another city
More comparisons with Santa Lucia: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Santa Lucia and Buenos Aires: common questions
How far ahead of Santa Lucia is Buenos Aires?
Buenos Aires is 1 hour ahead of Santa Lucia: UTC−3 against UTC−4.
What time is it in Buenos Aires when it is 9:00 AM in Santa Lucia?
When it is 9:00 AM in Santa Lucia, it is 10:00 AM in Buenos Aires.
What time is it in Buenos Aires at the end of the working day in Santa Lucia?
The working day in Santa Lucia ends at 6:00 PM; in Buenos Aires it is 7:00 PM at that moment.
When do working hours in Santa Lucia and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Santa Lucia, which is 10:00 AM to 6:00 PM in Buenos Aires.
From what time in Santa Lucia is it tomorrow in Buenos Aires?
Once it is 11:00 PM in Santa Lucia, the date in Buenos Aires has already changed. Until 1:00 AM in Buenos Aires, it is still the previous day in Santa Lucia.
Does the time gap between Santa Lucia and Buenos Aires change during the year?
Yes – daylight saving time is used in Santa Lucia but not in Buenos Aires. From November 1, 2026, Buenos Aires will be 2 hours ahead of Santa Lucia.
