San Fernando to Buenos Aires: time difference
Buenos Aires is 1 h ahead of San Fernando. Live clocks for both, the working hours they share, and how each one sits against your own time.
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
San Fernando 10:19 10:19 AM Buenos Aires 11:19 11:19 AM You –:–
10:19 10:19 AM
Atlantic Standard Time · UTC-4
☀️ 05:55 · 🌙 17:48
11:19 11:19 AM
Argentina Standard Time · UTC-3
☀️ 06:09 · 🌙 19:11
·
+1 h
Buenos Aires is 1 h ahead of San Fernando.
When you, San Fernando 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
🇹🇹 San Fernando
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 | 🇹🇹 San Fernando | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 10:19 | 11:19 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Atlantic Standard Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from San Fernando | — | +1 h |
| IANA zone | America/Port of Spain | America/Argentina/Buenos Aires |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:55 | 06:09 |
| Sunset | 17:48 | 19:11 |
| Daylight | 11 h 53 min | 13 h 2 min |
| People on this clock | 55,419 | 2,891,082 |
Compare San Fernando with another city
More comparisons with San Fernando: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
San Fernando and Buenos Aires: common questions
How far ahead of San Fernando is Buenos Aires?
Buenos Aires is 1 hour ahead of San Fernando: UTC−3 against UTC−4.
What time is it in Buenos Aires when it is 9:00 AM in San Fernando?
When it is 9:00 AM in San Fernando, it is 10:00 AM in Buenos Aires.
If it is 6:00 PM in San Fernando, what time is it in Buenos Aires?
At 6:00 PM in San Fernando, clocks in Buenos Aires show 7:00 PM.
When is a good time to call Buenos Aires from San Fernando?
Between 9:00 AM and 5:00 PM in San Fernando – that is 10:00 AM to 6:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Buenos Aires compared with San Fernando?
The new day starts in Buenos Aires earlier: at 11:00 PM in San Fernando it is already midnight there. Until 1:00 AM in Buenos Aires, San Fernando is still on the previous day.
Does the time gap between San Fernando and Buenos Aires change during the year?
No, the clocks change neither in San Fernando nor in Buenos Aires, so the gap is 1 hour all year round.
