Sao Paulo to Cambridge, MA: time difference
Cambridge, MA is 1 h behind Sao Paulo. 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.
Sao Paulo 09:45 9:45 AM Cambridge, MA 08:45 8:45 AM You –:–
09:45 9:45 AM
Brasilia Standard Time · UTC-3
☀️ 05:32 · 🌙 18:13
08:45 8:45 AM
Eastern Daylight Time · UTC-4
☀️ 07:01 · 🌙 17:59
·
−1 h
Cambridge, MA is 1 h behind Sao Paulo.
When you, Sao Paulo and Cambridge, MA are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇧🇷 Sao Paulo
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
🇺🇸 Cambridge, MA
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 | 🇧🇷 Sao Paulo | 🇺🇸 Cambridge, MA |
|---|---|---|
| Local time | 09:45 | 08:45 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Brasilia Standard Time | Eastern Daylight Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Sao Paulo | — | −1 h |
| IANA zone | America/Sao Paulo | America/New York |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 05:32 | 07:01 |
| Sunset | 18:13 | 17:59 |
| Daylight | 12 h 41 min | 10 h 58 min |
| People on this clock | 11,451,999 | 105,162 |
Compare Sao Paulo with another city
More comparisons with Sao Paulo: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Sao Paulo and Cambridge, MA: common questions
How far behind Sao Paulo is Cambridge, MA?
Cambridge is 1 hour behind Sao Paulo: UTC−4 against UTC−3.
What time is it in Cambridge, MA, when it is 9:00 AM in Sao Paulo?
When it is 9:00 AM in Sao Paulo, it is 8:00 AM in Cambridge.
What time is it in Cambridge, MA, at the end of the working day in Sao Paulo?
The working day in Sao Paulo ends at 6:00 PM; in Cambridge it is 5:00 PM at that moment.
When is a good time to call Cambridge, MA, from Sao Paulo?
Between 10:00 AM and 6:00 PM in Sao Paulo – that is 9:00 AM to 5:00 PM in Cambridge – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Cambridge, MA?
Until 1:00 AM in Sao Paulo it is still the previous day in Cambridge. The other way round, from 11:00 PM in Cambridge it is already the next day in Sao Paulo.
Is the time difference between Sao Paulo and Cambridge, MA, the same all year?
No. Only Cambridge switches to summer time, so the gap changes twice a year. From November 1, 2026, Cambridge will be 2 hours behind Sao Paulo.
