St. Augustine, FL to Buenos Aires: time difference
Buenos Aires is 1 h ahead of St. Augustine, FL. 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.
St. Augustine, FL 01:43 1:43 AM Buenos Aires 02:43 2:43 AM You –:–
01:43 1:43 AM
Eastern Daylight Time · UTC-4
☀️ 07:26 · 🌙 18:59
02:43 2:43 AM
Argentina Standard Time · UTC-3
☀️ 06:16 · 🌙 19:06
·
+1 h
Buenos Aires is 1 h ahead of St. Augustine, FL.
When you, St. Augustine, FL 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
🇺🇸 St. Augustine, FL
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
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Time zones side by side
| Detail | 🇺🇸 St. Augustine, FL | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 01:43 | 02:43 |
| Local date | Monday, October 12, 2026 | Monday, October 12, 2026 |
| Time zone | Eastern Daylight Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from St. Augustine, FL | — | +1 h |
| IANA zone | America/New York | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:26 | 06:16 |
| Sunset | 18:59 | 19:06 |
| Daylight | 11 h 33 min | 12 h 49 min |
| People on this clock | 12,975 | 2,891,082 |
Compare St. Augustine, FL with another city
More comparisons with St. Augustine, FL: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
St. Augustine, FL and Buenos Aires: common questions
What is the time difference between St. Augustine, FL, and Buenos Aires?
Buenos Aires is 1 hour ahead: it uses UTC−3, while St. Augustine is on UTC−4.
What time is it in Buenos Aires at the start of the working day in St. Augustine, FL?
The working day in St. Augustine starts at 9:00 AM; in Buenos Aires it is 10:00 AM at that moment.
What time is it in Buenos Aires when it is 6:00 PM in St. Augustine, FL?
When it is 6:00 PM in St. Augustine, it is 7:00 PM in Buenos Aires.
When do working hours in St. Augustine, FL, and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in St. Augustine, which is 10:00 AM to 6:00 PM in Buenos Aires.
When is it already the next day in Buenos Aires?
From 11:00 PM in St. Augustine, FL, it is already the next day in Buenos Aires. The other way round, until 1:00 AM in Buenos Aires it is still the previous day in St. Augustine.
Does the time gap between St. Augustine, FL, and Buenos Aires change during the year?
Yes – daylight saving time is used in St. Augustine but not in Buenos Aires. From November 1, 2026, Buenos Aires will be 2 hours ahead of St. Augustine.
