Charlestown to Sao Paulo: time difference
Sao Paulo is 1 h ahead of Charlestown. 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.
Charlestown 23:39 11:39 PM Sao Paulo 00:39 12:39 AM You –:–
23:39 11:39 PM
Atlantic Standard Time · UTC-4
☀️ 06:03 · 🌙 17:54
00:39 12:39 AM
Brasilia Standard Time · UTC-3
☀️ 05:39 · 🌙 18:09
·
+1 h
Sao Paulo is 1 h ahead of Charlestown.
When you, Charlestown and Sao Paulo are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇰🇳 Charlestown
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
🇧🇷 Sao Paulo
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇰🇳 Charlestown | 🇧🇷 Sao Paulo |
|---|---|---|
| Local time | 23:39 | 00:39 |
| Local date | Friday, October 9, 2026 | Saturday, October 10, 2026 |
| Time zone | Atlantic Standard Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Charlestown | — | +1 h |
| IANA zone | America/St Kitts | America/Sao Paulo |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:03 | 05:39 |
| Sunset | 17:54 | 18:09 |
| Daylight | 11 h 51 min | 12 h 31 min |
| People on this clock | 1,500 | 11,451,999 |
Compare Charlestown with another city
More comparisons with Charlestown: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Charlestown and Sao Paulo: common questions
How far ahead of Charlestown is Sao Paulo?
Sao Paulo is 1 hour ahead of Charlestown: UTC−3 against UTC−4.
If it is 9:00 AM in Charlestown, what time is it in Sao Paulo?
At 9:00 AM in Charlestown, clocks in Sao Paulo show 10:00 AM.
What time is it in Sao Paulo at the end of the working day in Charlestown?
The working day in Charlestown ends at 6:00 PM; in Sao Paulo it is 7:00 PM at that moment.
When is a good time to call Sao Paulo from Charlestown?
Between 9:00 AM and 5:00 PM in Charlestown – that is 10:00 AM to 6:00 PM in Sao Paulo – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Sao Paulo compared with Charlestown?
The new day starts in Sao Paulo earlier: at 11:00 PM in Charlestown it is already midnight there. Until 1:00 AM in Sao Paulo, Charlestown is still on the previous day.
Does the time gap between Charlestown and Sao Paulo change during the year?
No, the clocks change neither in Charlestown nor in Sao Paulo, so the gap is 1 hour all year round.
