🇦🇷 Buenos Aires, Argentina
06
- Argentina Standard Time
- UTC-3
- Golden hour
☀️ 06:06 · 🌙 19:12 · 13 h 6 min
Buenos Aires to Chattanooga, TN: time difference
Chattanooga, TN 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 18:10 6:10 PM Chattanooga, TN 17:10 5:10 PM You –:–
18:10 6:10 PM
Argentina Standard Time · UTC-3
☀️ 06:06 · 🌙 19:12
17:10 5:10 PM
Eastern Daylight Time · UTC-4
☀️ 07:52 · 🌙 19:01
·
−1 h
Chattanooga, TN is 1 h behind Buenos Aires.
When you, Buenos Aires and Chattanooga, TN 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
🇺🇸 Chattanooga, TN
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 | 🇺🇸 Chattanooga, TN |
|---|---|---|
| Local time | 18:10 | 17:10 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Argentina Standard Time | Eastern Daylight Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Buenos Aires | — | −1 h |
| IANA zone | America/Argentina/Buenos Aires | America/New York |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 06:06 | 07:52 |
| Sunset | 19:12 | 19:01 |
| Daylight | 13 h 6 min | 11 h 9 min |
| People on this clock | 2,891,082 | 176,588 |
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 Chattanooga, TN: common questions
What is the time difference between Buenos Aires and Chattanooga, TN?
Chattanooga is 1 hour behind: it uses UTC−4, while Buenos Aires is on UTC−3.
What time is it in Chattanooga, TN, at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Chattanooga it is 8:00 AM at that moment.
If it is 6:00 PM in Buenos Aires, what time is it in Chattanooga, TN?
At 6:00 PM in Buenos Aires, clocks in Chattanooga show 5:00 PM.
When do working hours in Buenos Aires and in Chattanooga, TN, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Buenos Aires, which is 9:00 AM to 5:00 PM in Chattanooga.
When does the date change in Chattanooga, TN, compared with Buenos Aires?
The new day starts in Chattanooga later: until 1:00 AM in Buenos Aires, it is still the previous day there. From 11:00 PM in Chattanooga, Buenos Aires is already on the next day.
Does the time difference between Buenos Aires and Chattanooga, TN, change?
Yes. The clocks change only in Chattanooga. From November 1, 2026, Chattanooga will be 2 hours behind Buenos Aires.
