Rio de Janeiro to St Lucia: time difference
St Lucia is 1 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 07:43 7:43 AM St Lucia 06:43 6:43 AM You –:–
07:43 7:43 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
06:43 6:43 AM
Atlantic Standard Time · UTC-4
☀️ 05:55 · 🌙 17:48
·
−1 h
St Lucia is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and St Lucia 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
🇱🇨 St Lucia
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 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Rio de Janeiro | 🇱🇨 St Lucia |
|---|---|---|
| Local time | 07:43 | 06:43 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Brasilia Standard Time | Atlantic Standard Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Rio de Janeiro | — | −1 h |
| IANA zone | America/Sao Paulo | America/St Lucia |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:26 | 05:55 |
| Sunset | 17:55 | 17:48 |
| Daylight | 12 h 30 min | 11 h 54 min |
| People on this clock | 6,211,223 | 1,355 |
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 St Lucia: common questions
What is the time difference between Rio de Janeiro and St Lucia?
St Lucia is 1 hour behind: it uses UTC−4, while Rio de Janeiro is on UTC−3.
If it is 9:00 AM in Rio de Janeiro, what time is it in St Lucia?
At 9:00 AM in Rio de Janeiro, clocks in St Lucia show 8:00 AM.
What time is it in St Lucia at the end of the working day in Rio de Janeiro?
The working day in Rio de Janeiro ends at 6:00 PM; in St Lucia it is 5:00 PM at that moment.
When do working hours in Rio de Janeiro and in St Lucia overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Rio de Janeiro, which is 9:00 AM to 5:00 PM in St Lucia.
When does the date change in St Lucia compared with Rio de Janeiro?
The new day starts in St Lucia later: until 1:00 AM in Rio de Janeiro, it is still the previous day there. From 11:00 PM in St Lucia, Rio de Janeiro is already on the next day.
Does the time difference between Rio de Janeiro and St Lucia change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
