Rio de Janeiro to Antigua and Barbuda: time difference
Antigua and Barbuda 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 05:00 5:00 AM Antigua and Barbuda 04:00 4:00 AM You –:–
05:00 5:00 AM
Brasilia Standard Time · UTC-3
☀️ 05:26 · 🌙 17:55
04:00 4:00 AM
Atlantic Standard Time · UTC-4
☀️ 06:00 · 🌙 17:50
·
−1 h
Antigua and Barbuda is 1 h behind Rio de Janeiro.
When you, Rio de Janeiro and Antigua and Barbuda 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
🇦🇬 Antigua and Barbuda
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 | 🇦🇬 Antigua and Barbuda |
|---|---|---|
| Local time | 05:00 | 04:00 |
| 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/Antigua |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:26 | 06:00 |
| Sunset | 17:55 | 17:50 |
| Daylight | 12 h 30 min | 11 h 51 min |
| People on this clock | 6,211,223 | 101,489 |
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 Antigua and Barbuda: common questions
What is the time difference between Rio de Janeiro and Antigua and Barbuda?
Antigua and Barbuda 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 Antigua and Barbuda?
At 9:00 AM in Rio de Janeiro, clocks in Antigua and Barbuda show 8:00 AM.
What time is it in Antigua and Barbuda when it is 6:00 PM in Rio de Janeiro?
When it is 6:00 PM in Rio de Janeiro, it is 5:00 PM in Antigua and Barbuda.
Is there a time when both Rio de Janeiro and Antigua and Barbuda are at work?
Yes: from 10:00 AM to 6:00 PM in Rio de Janeiro (9:00 AM to 5:00 PM in Antigua and Barbuda), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Antigua and Barbuda compared with Rio de Janeiro?
The new day starts in Antigua and Barbuda later: until 1:00 AM in Rio de Janeiro, it is still the previous day there. From 11:00 PM in Antigua and Barbuda, Rio de Janeiro is already on the next day.
Is the time difference between Rio de Janeiro and Antigua and Barbuda the same all year?
Yes. Neither Rio de Janeiro nor Antigua and Barbuda switches to summer time, so the gap is always 1 hour.
