Los Alamos, NM to Rio de Janeiro: time difference
Rio de Janeiro is 3 h ahead of Los Alamos, NM. 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.
Los Alamos, NM 05:37 5:37 AM Rio de Janeiro 08:37 8:37 AM You –:–
05:37 5:37 AM
Mountain Daylight Time · UTC-6
☀️ 07:15 · 🌙 18:27
08:37 8:37 AM
Brasilia Standard Time · UTC-3
☀️ 05:19 · 🌙 17:59
·
+3 h
Rio de Janeiro is 3 h ahead of Los Alamos, NM.
When you, Los Alamos, NM 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
🇺🇸 Los Alamos, NM
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
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Time zones side by side
| Detail | 🇺🇸 Los Alamos, NM | 🇧🇷 Rio de Janeiro |
|---|---|---|
| Local time | 05:37 | 08:37 |
| 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 Los Alamos, NM | — | +3 h |
| IANA zone | America/Denver | America/Sao Paulo |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | Not observed |
| Sunrise | 07:15 | 05:19 |
| Sunset | 18:27 | 17:59 |
| Daylight | 11 h 12 min | 12 h 40 min |
| People on this clock | 13,179 | 6,211,223 |
Compare Los Alamos, NM with another city
More comparisons with Los Alamos, NM: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Los Alamos, NM and Rio de Janeiro: common questions
How far ahead of Los Alamos, NM, is Rio de Janeiro?
Rio de Janeiro is 3 hours ahead of Los Alamos: UTC−3 against UTC−6.
What time is it in Rio de Janeiro at the start of the working day in Los Alamos, NM?
The working day in Los Alamos starts at 9:00 AM; in Rio de Janeiro it is 12:00 PM at that moment.
What time is it in Rio de Janeiro at the end of the working day in Los Alamos, NM?
The working day in Los Alamos ends at 6:00 PM; in Rio de Janeiro it is 9:00 PM at that moment.
Is there a time when both Los Alamos, NM, and Rio de Janeiro are at work?
Yes: from 9:00 AM to 3:00 PM in Los Alamos (12:00 PM to 6:00 PM in Rio de Janeiro), the working days (9:00 AM–6:00 PM) overlap.
From what time in Los Alamos, NM, is it tomorrow in Rio de Janeiro?
Once it is 9:00 PM in Los Alamos, the date in Rio de Janeiro has already changed. Until 3:00 AM in Rio de Janeiro, it is still the previous day in Los Alamos.
Is the time difference between Los Alamos, NM, and Rio de Janeiro the same all year?
No. Only Los Alamos switches to summer time, so the gap changes twice a year. From November 1, 2026, Rio de Janeiro will be 4 hours ahead of Los Alamos.
