Rio de Janeiro to Saint Charles, MO: time difference
Saint Charles, MO is 2 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 23:28 11:28 PM Saint Charles, MO 21:28 9:28 PM You –:–
23:28 11:28 PM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 18:00
21:28 9:28 PM
Central Daylight Time · UTC-5
☀️ 07:17 · 🌙 18:18
·
−2 h
Saint Charles, MO is 2 h behind Rio de Janeiro.
When you, Rio de Janeiro and Saint Charles, MO 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
🇺🇸 Saint Charles, MO
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 21 9 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Rio de Janeiro | 🇺🇸 Saint Charles, MO |
|---|---|---|
| Local time | 23:28 | 21:28 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Brasilia Standard Time | Central Daylight Time |
| UTC offset | UTC-3 | UTC-5 |
| Offset from Rio de Janeiro | — | −2 h |
| IANA zone | America/Sao Paulo | America/Chicago |
| Daylight saving | Not observed | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 05:17 | 07:17 |
| Sunset | 18:00 | 18:18 |
| Daylight | 12 h 43 min | 11 h 1 min |
| People on this clock | 6,211,223 | 70,329 |
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 Saint Charles, MO: common questions
How far behind Rio de Janeiro is Saint Charles, MO?
Saint Charles is 2 hours behind Rio de Janeiro: UTC−5 against UTC−3.
What time is it in Saint Charles, MO, when it is 9:00 AM in Rio de Janeiro?
When it is 9:00 AM in Rio de Janeiro, it is 7:00 AM in Saint Charles.
If it is 6:00 PM in Rio de Janeiro, what time is it in Saint Charles, MO?
At 6:00 PM in Rio de Janeiro, clocks in Saint Charles show 4:00 PM.
When is a good time to call Saint Charles, MO, from Rio de Janeiro?
Between 11:00 AM and 6:00 PM in Rio de Janeiro – that is 9:00 AM to 4:00 PM in Saint Charles – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Saint Charles, MO, compared with Rio de Janeiro?
The new day starts in Saint Charles later: until 2:00 AM in Rio de Janeiro, it is still the previous day there. From 10:00 PM in Saint Charles, Rio de Janeiro is already on the next day.
Is the time difference between Rio de Janeiro and Saint Charles, MO, the same all year?
No. Only Saint Charles switches to summer time, so the gap changes twice a year. From November 1, 2026, Saint Charles will be 3 hours behind Rio de Janeiro.
