Rio de Janeiro to Knoxville, TN: time difference
Knoxville, TN is 1 h behind Rio de Janeiro. 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.
Rio de Janeiro 10:52 10:52 AM Knoxville, TN 09:52 9:52 AM You –:–
10:52 10:52 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
09:52 9:52 AM
Eastern Daylight Time · UTC-4
☀️ 07:39 · 🌙 19:08
·
−1 h
Knoxville, TN is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Knoxville, 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
🇧🇷 Rio de Janeiro
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
🇺🇸 Knoxville, 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
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Time zones side by side
| Detail | 🇧🇷 Rio de Janeiro | 🇺🇸 Knoxville, TN |
|---|---|---|
| Local time | 10:52 | 09:52 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Brasilia Standard Time | Eastern Daylight Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Rio de Janeiro | — | −1 h |
| IANA zone | America/Sao Paulo | America/New York |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 05:26 | 07:39 |
| Sunset | 17:55 | 19:08 |
| Daylight | 12 h 30 min | 11 h 29 min |
| People on this clock | 6,211,223 | 190,740 |
Compare Rio de Janeiro with another city
More comparisons with Rio de Janeiro: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Rio de Janeiro and Knoxville, TN: common questions
How many hours behind Rio de Janeiro is Knoxville, TN?
The clocks in Knoxville are 1 hour behind those in Rio de Janeiro (UTC−4 and UTC−3).
What time is it in Knoxville, TN, at the start of the working day in Rio de Janeiro?
The working day in Rio de Janeiro starts at 9:00 AM; in Knoxville it is 8:00 AM at that moment.
If it is 6:00 PM in Rio de Janeiro, what time is it in Knoxville, TN?
At 6:00 PM in Rio de Janeiro, clocks in Knoxville show 5:00 PM.
When do working hours in Rio de Janeiro and in Knoxville, TN, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Rio de Janeiro, which is 9:00 AM to 5:00 PM in Knoxville.
Until what time in Rio de Janeiro is it still yesterday in Knoxville, TN?
Before 1:00 AM in Rio de Janeiro, the date in Knoxville has not changed yet. From 11:00 PM in Knoxville, it is already the next day in Rio de Janeiro.
Is the time difference between Rio de Janeiro and Knoxville, TN, the same all year?
No. Only Knoxville switches to summer time, so the gap changes twice a year. From November 1, 2026, Knoxville will be 2 hours behind Rio de Janeiro.
