Greenwich, CT to Sao Paulo: time difference
Sao Paulo is 1 h ahead of Greenwich, CT. 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.
Greenwich, CT 23:21 11:21 PM Sao Paulo 00:21 12:21 AM You –:–
23:21 11:21 PM
Eastern Daylight Time · UTC-4
☀️ 07:10 · 🌙 18:11
00:21 12:21 AM
Brasilia Standard Time · UTC-3
☀️ 05:31 · 🌙 18:13
·
+1 h
Sao Paulo is 1 h ahead of Greenwich, CT.
When you, Greenwich, CT 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
🇺🇸 Greenwich, CT
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
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Time zones side by side
| Detail | 🇺🇸 Greenwich, CT | 🇧🇷 Sao Paulo |
|---|---|---|
| Local time | 23:21 | 00:21 |
| Local date | Sunday, October 18, 2026 | Monday, October 19, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Greenwich, CT | — | +1 h |
| IANA zone | America/New York | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:10 | 05:31 |
| Sunset | 18:11 | 18:13 |
| Daylight | 11 h 1 min | 12 h 43 min |
| People on this clock | 62,077 | 11,451,999 |
Compare Greenwich, CT with another city
More comparisons with Greenwich, CT: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Greenwich, CT and Sao Paulo: common questions
How many hours ahead of Greenwich, CT, is Sao Paulo?
The clocks in Sao Paulo are 1 hour ahead of those in Greenwich (UTC−3 and UTC−4).
What time is it in Sao Paulo when it is 9:00 AM in Greenwich, CT?
When it is 9:00 AM in Greenwich, it is 10:00 AM in Sao Paulo.
What time is it in Sao Paulo at the end of the working day in Greenwich, CT?
The working day in Greenwich 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 Greenwich, CT?
Between 9:00 AM and 5:00 PM in Greenwich – 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 is it already the next day in Sao Paulo?
From 11:00 PM in Greenwich, CT, it is already the next day in Sao Paulo. The other way round, until 1:00 AM in Sao Paulo it is still the previous day in Greenwich.
Is the time difference between Greenwich, CT, and Sao Paulo the same all year?
No. Only Greenwich switches to summer time, so the gap changes twice a year. From November 1, 2026, Sao Paulo will be 2 hours ahead of Greenwich.
