Thornton, CO to Rio de Janeiro: time difference
Rio de Janeiro is 3 h ahead of Thornton, CO. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇧🇷 Rio de Janeiro, Brazil
10
- Brasilia Standard Time
- UTC-3
- Golden hour
☀️ 05:19 · 🌙 17:59 · 12 h 40 min
+3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Thornton, CO 14:29 2:29 PM Rio de Janeiro 17:29 5:29 PM You –:–
14:29 2:29 PM
Mountain Daylight Time · UTC-6
☀️ 07:14 · 🌙 18:17
17:29 5:29 PM
Brasilia Standard Time · UTC-3
☀️ 05:19 · 🌙 17:59
·
+3 h
Rio de Janeiro is 3 h ahead of Thornton, CO.
When you, Thornton, CO and Rio de Janeiro are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Thornton, CO
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
🇧🇷 Rio de Janeiro
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 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Thornton, CO | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 14:29 | 17:29 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Mountain Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-6 | UTC-3 |
| Offset from Thornton, CO | — | +3 h |
| IANA zone | America/Denver | America/Sao Paulo |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | Not observed |
| Sunrise | 07:14 | 05:19 |
| Sunset | 18:17 | 17:59 |
| Daylight | 11 h 3 min | 12 h 40 min |
| People on this clock | 139,478 | 6,211,223 |
Compare Thornton, CO with another city
More comparisons with Thornton, CO: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Thornton, CO and Rio de Janeiro: common questions
How far ahead of Thornton, CO, is Rio de Janeiro?
Rio de Janeiro is 3 hours ahead of Thornton: UTC−3 against UTC−6.
What time is it in Rio de Janeiro when it is 9:00 AM in Thornton, CO?
When it is 9:00 AM in Thornton, it is 12:00 PM in Rio de Janeiro.
If it is 6:00 PM in Thornton, CO, what time is it in Rio de Janeiro?
At 6:00 PM in Thornton, clocks in Rio de Janeiro show 9:00 PM.
When is a good time to call Rio de Janeiro from Thornton, CO?
Between 9:00 AM and 3:00 PM in Thornton – that is 12:00 PM to 6:00 PM in Rio de Janeiro – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Rio de Janeiro?
From 9:00 PM in Thornton, CO, it is already the next day in Rio de Janeiro. The other way round, until 3:00 AM in Rio de Janeiro it is still the previous day in Thornton.
Does the time gap between Thornton, CO, and Rio de Janeiro change during the year?
Yes – daylight saving time is used in Thornton but not in Rio de Janeiro. From November 1, 2026, Rio de Janeiro will be 4 hours ahead of Thornton.
