Chattanooga, TN to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Chattanooga, TN. 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.
Chattanooga, TN 11:32 11:32 AM Buenos Aires 12:32 12:32 PM You –:–
11:32 11:32 AM
Eastern Daylight Time · UTC-4
☀️ 07:52 · 🌙 19:01
12:32 12:32 PM
Argentina Standard Time · UTC-3
☀️ 06:06 · 🌙 19:12
·
+1 h
Buenos Aires is 1 h ahead of Chattanooga, TN.
When you, Chattanooga, TN 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
🇺🇸 Chattanooga, TN
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 | 🇺🇸 Chattanooga, TN | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 11:32 | 12:32 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Eastern Daylight Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Chattanooga, TN | — | +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 | 07:52 | 06:06 |
| Sunset | 19:01 | 19:12 |
| Daylight | 11 h 9 min | 13 h 6 min |
| People on this clock | 176,588 | 2,891,082 |
Compare Chattanooga, TN with another city
More comparisons with Chattanooga, TN: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Chattanooga, TN and Buenos Aires: common questions
How many hours ahead of Chattanooga, TN, is Buenos Aires?
The clocks in Buenos Aires are 1 hour ahead of those in Chattanooga (UTC−3 and UTC−4).
What time is it in Buenos Aires when it is 9:00 AM in Chattanooga, TN?
When it is 9:00 AM in Chattanooga, it is 10:00 AM in Buenos Aires.
What time is it in Buenos Aires at the end of the working day in Chattanooga, TN?
The working day in Chattanooga ends at 6:00 PM; in Buenos Aires it is 7:00 PM at that moment.
When is a good time to call Buenos Aires from Chattanooga, TN?
Between 9:00 AM and 5:00 PM in Chattanooga – that is 10:00 AM to 6:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
From what time in Chattanooga, TN, is it tomorrow in Buenos Aires?
Once it is 11:00 PM in Chattanooga, the date in Buenos Aires has already changed. Until 1:00 AM in Buenos Aires, it is still the previous day in Chattanooga.
Is the time difference between Chattanooga, TN, and Buenos Aires the same all year?
No. Only Chattanooga switches to summer time, so the gap changes twice a year. From November 1, 2026, Buenos Aires will be 2 hours ahead of Chattanooga.
