Buenos Aires to San Fernando: time difference
San Fernando is 1 h behind Buenos Aires. 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.
Buenos Aires 13:07 1:07 PM San Fernando 12:07 12:07 PM You –:–
13:07 1:07 PM
Argentina Standard Time · UTC-3
☀️ 06:09 · 🌙 19:11
12:07 12:07 PM
Atlantic Standard Time · UTC-4
☀️ 05:55 · 🌙 17:48
·
−1 h
San Fernando is 1 h behind Buenos Aires.
When you, Buenos Aires and San Fernando are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇦🇷 Buenos Aires
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
🇹🇹 San Fernando
23 11 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇹🇹 San Fernando |
|---|---|---|
| Local time | 13:07 | 12:07 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Argentina Standard Time | Atlantic Standard Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Buenos Aires | — | −1 h |
| IANA zone | America/Argentina/Buenos Aires | America/Port of Spain |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:09 | 05:55 |
| Sunset | 19:11 | 17:48 |
| Daylight | 13 h 2 min | 11 h 53 min |
| People on this clock | 2,891,082 | 55,419 |
Compare Buenos Aires with another city
More comparisons with Buenos Aires: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Buenos Aires and San Fernando: common questions
How far behind Buenos Aires is San Fernando?
San Fernando is 1 hour behind Buenos Aires: UTC−4 against UTC−3.
What time is it in San Fernando when it is 9:00 AM in Buenos Aires?
When it is 9:00 AM in Buenos Aires, it is 8:00 AM in San Fernando.
What time is it in San Fernando when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 5:00 PM in San Fernando.
Is there a time when both Buenos Aires and San Fernando are at work?
Yes: from 10:00 AM to 6:00 PM in Buenos Aires (9:00 AM to 5:00 PM in San Fernando), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Buenos Aires is it still yesterday in San Fernando?
Before 1:00 AM in Buenos Aires, the date in San Fernando has not changed yet. From 11:00 PM in San Fernando, it is already the next day in Buenos Aires.
Does the time gap between Buenos Aires and San Fernando change during the year?
No, the clocks change neither in Buenos Aires nor in San Fernando, so the gap is 1 hour all year round.
