Cambridge, MA to Sao Paulo: time difference
Sao Paulo is 1 h ahead of Cambridge, MA. 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.
Cambridge, MA 10:07 10:07 AM Sao Paulo 11:07 11:07 AM You –:–
10:07 10:07 AM
Eastern Daylight Time · UTC-4
☀️ 07:01 · 🌙 17:59
11:07 11:07 AM
Brasilia Standard Time · UTC-3
☀️ 05:32 · 🌙 18:13
·
+1 h
Sao Paulo is 1 h ahead of Cambridge, MA.
When you, Cambridge, MA 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
🇺🇸 Cambridge, MA
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 | 🇺🇸 Cambridge, MA | 🇧🇷 Sao Paulo |
|---|---|---|
| Local time | 10:07 | 11:07 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Eastern Daylight Time | Brasilia Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Cambridge, MA | — | +1 h |
| IANA zone | America/New York | America/Sao Paulo |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:01 | 05:32 |
| Sunset | 17:59 | 18:13 |
| Daylight | 10 h 58 min | 12 h 41 min |
| People on this clock | 105,162 | 11,451,999 |
Compare Cambridge, MA with another city
More comparisons with Cambridge, MA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Cambridge, MA and Sao Paulo: common questions
How many hours ahead of Cambridge, MA, is Sao Paulo?
The clocks in Sao Paulo are 1 hour ahead of those in Cambridge (UTC−3 and UTC−4).
If it is 9:00 AM in Cambridge, MA, what time is it in Sao Paulo?
At 9:00 AM in Cambridge, clocks in Sao Paulo show 10:00 AM.
What time is it in Sao Paulo when it is 6:00 PM in Cambridge, MA?
When it is 6:00 PM in Cambridge, it is 7:00 PM in Sao Paulo.
Is there a time when both Cambridge, MA, and Sao Paulo are at work?
Yes: from 9:00 AM to 5:00 PM in Cambridge (10:00 AM to 6:00 PM in Sao Paulo), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Sao Paulo compared with Cambridge, MA?
The new day starts in Sao Paulo earlier: at 11:00 PM in Cambridge it is already midnight there. Until 1:00 AM in Sao Paulo, Cambridge is still on the previous day.
Is the time difference between Cambridge, MA, and Sao Paulo the same all year?
No. Only Cambridge switches to summer time, so the gap changes twice a year. From November 1, 2026, Sao Paulo will be 2 hours ahead of Cambridge.
