Golden, CO to Rio de Janeiro: time difference
Rio de Janeiro is 3 h ahead of Golden, CO. Live clocks for both, the working hours they share, and how each one sits against your own time.
+3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Golden, CO 16:10 4:10 PM Rio de Janeiro 19:10 7:10 PM You –:–
16:10 4:10 PM
Mountain Daylight Time · UTC-6
☀️ 07:17 · 🌙 18:16
19:10 7:10 PM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 18:00
·
+3 h
Rio de Janeiro is 3 h ahead of Golden, CO.
When you, Golden, 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
🇺🇸 Golden, 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
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Time zones side by side
| Detail | 🇺🇸 Golden, CO | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 16:10 | 19:10 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Mountain Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-6 | UTC-3 |
| Offset from Golden, CO | — | +3 h |
| IANA zone | America/Denver | America/Sao Paulo |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | Not observed |
| Sunrise | 07:17 | 05:17 |
| Sunset | 18:16 | 18:00 |
| Daylight | 10 h 59 min | 12 h 43 min |
| People on this clock | 20,399 | 6,211,223 |
Compare Golden, CO with another city
More comparisons with Golden, CO: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Golden, CO and Rio de Janeiro: common questions
How far ahead of Golden, CO, is Rio de Janeiro?
Rio de Janeiro is 3 hours ahead of Golden: UTC−3 against UTC−6.
What time is it in Rio de Janeiro at the start of the working day in Golden, CO?
The working day in Golden starts at 9:00 AM; in Rio de Janeiro it is 12:00 PM at that moment.
If it is 6:00 PM in Golden, CO, what time is it in Rio de Janeiro?
At 6:00 PM in Golden, clocks in Rio de Janeiro show 9:00 PM.
When is a good time to call Rio de Janeiro from Golden, CO?
Between 9:00 AM and 3:00 PM in Golden – 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 does the date change in Rio de Janeiro compared with Golden, CO?
The new day starts in Rio de Janeiro earlier: at 9:00 PM in Golden it is already midnight there. Until 3:00 AM in Rio de Janeiro, Golden is still on the previous day.
Does the time difference between Golden, CO, and Rio de Janeiro change?
Yes. The clocks change only in Golden. From November 1, 2026, Rio de Janeiro will be 4 hours ahead of Golden.
