Rio de Janeiro to San Ramon: time difference
San Ramon is 3 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 06:44 6:44 AM San Ramon 03:44 3:44 AM You –:–
06:44 6:44 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
03:44 3:44 AM
Central Standard Time · UTC-6
☀️ 05:27 · 🌙 17:24
·
−3 h
San Ramon is 3 h behind Rio de Janeiro.
When you, Rio de Janeiro and San Ramon 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
🇨🇷 San Ramon
21 9 PM 22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Rio de Janeiro | 🇨🇷 San Ramon |
|---|---|---|
| Local time | 06:44 | 03:44 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Brasilia Standard Time | Central Standard Time |
| UTC offset | UTC-3 | UTC-6 |
| Offset from Rio de Janeiro | — | −3 h |
| IANA zone | America/Sao Paulo | America/Costa Rica |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:26 | 05:27 |
| Sunset | 17:55 | 17:24 |
| Daylight | 12 h 30 min | 11 h 57 min |
| People on this clock | 6,211,223 | 10,000 |
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 San Ramon: common questions
How far behind Rio de Janeiro is San Ramon?
San Ramon is 3 hours behind Rio de Janeiro: UTC−6 against UTC−3.
If it is 9:00 AM in Rio de Janeiro, what time is it in San Ramon?
At 9:00 AM in Rio de Janeiro, clocks in San Ramon show 6:00 AM.
What time is it in San Ramon when it is 6:00 PM in Rio de Janeiro?
When it is 6:00 PM in Rio de Janeiro, it is 3:00 PM in San Ramon.
When do working hours in Rio de Janeiro and in San Ramon overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Rio de Janeiro, which is 9:00 AM to 3:00 PM in San Ramon.
Until what time in Rio de Janeiro is it still yesterday in San Ramon?
Before 3:00 AM in Rio de Janeiro, the date in San Ramon has not changed yet. From 9:00 PM in San Ramon, it is already the next day in Rio de Janeiro.
Does the time difference between Rio de Janeiro and San Ramon change?
No. Neither place uses daylight saving time, so the difference stays 3 hours all year.
