Does Boston observe daylight saving time?

Yes. Boston is on EDT (UTC-4) now, and its clocks go back 1 hour on Sun, Nov 1, to EST (UTC-5).

Does São Paulo observe daylight saving time?

No. São Paulo stays on BRT (UTC-3) all year, so its clocks don't change.

What time is it in São Paulo when it's 9 AM in Boston?

10:00 AM in São Paulo, on the same day.

Boston to São Paulo Meeting Planner

São Paulo is 1 hour ahead of Boston right now. Their working days overlap for 7 hours today.

Boston · United States

10:08 AM

Sat, Oct 17 · EDT · summer time

São Paulo · Brazil

11:08 AM

Sat, Oct 17 · BRT

Best Meeting Times Between Boston and São Paulo

9:00 AM to 4:00 PM in Boston (10:00 AM to 5:00 PM in São Paulo). That's when both cities are inside working hours, 9 AM to 5 PM, giving 7 hours of overlap today.

Who's meeting

2 of 4 places

BostonOrganizerUnited States ·· summer time10:08AMnow
São PauloBrazil ·11:08AMnow

Add a city

Add up to 4 places by city, country, time zone or abbreviation, like Tokyo, India or JST. Press "/" to jump here.

Date in Boston

Working hours, everywhere

Best times to meet

Saturday, October 17, 2026, in Boston time.

1:00PMBest · OptimalWorking hours in Boston (13:00) and São Paulo (14:00).
12:00PMOption 2 · OptimalWorking hours in Boston (12:00) and São Paulo (13:00).
2:00PMOption 3 · OptimalWorking hours in Boston (14:00) and São Paulo (15:00).

The whole day

Pick any slot in the Fit row, or use the arrow keys there, to make it the meeting time.

Each column is a one-hour slot of the first place's day. The Fit row grades how well the slot suits everyone; each row shows the local time and whether it's working hours there.
Fit
BostonEDT
São PauloUTC-3
UTC	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03

Working hours (09–17)Just outside (07–09, 17–20)Late evening (20–23)NightFit: optimal, good, possible, poor

Your meeting

Boston1:00 PM EDTSat, Oct 17
São Paulo2:00 PM UTC-3Sat, Oct 17
UTC2026-10-17 17:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between Boston and São Paulo

São Paulo is 1 hour ahead of Boston right now: São Paulo is on BRT (UTC-3) and Boston on EDT (UTC-4). That changes on Sun, Nov 1, when clocks go back in Boston: then São Paulo is 2 hours ahead of Boston.

Time difference between Boston and São Paulo over the next 12 months
From	Difference	Why
Now	São Paulo 1 hour ahead	—
Sun, Nov 1	São Paulo 2 hours ahead	Clocks go back in Boston
Sun, Mar 14, 2027	São Paulo 1 hour ahead	Clocks go forward in Boston

Boston is on Eastern Standard Time. São Paulo is on Brasilia Standard Time.

Frequently Asked Questions: Boston & São Paulo Scheduling

What is the time difference between Boston and São Paulo?: São Paulo is 1 hour ahead of Boston right now: São Paulo is on BRT (UTC-3) and Boston on EDT (UTC-4). That changes on Sun, Nov 1, when clocks go back in Boston: then São Paulo is 2 hours ahead of Boston.
What is the best time to schedule a meeting between Boston and São Paulo?: 9:00 AM to 4:00 PM in Boston (10:00 AM to 5:00 PM in São Paulo). That's when both cities are inside working hours, 9 AM to 5 PM, giving 7 hours of overlap today.
Does Boston observe daylight saving time?: Yes. Boston is on EDT (UTC-4) now, and its clocks go back 1 hour on Sun, Nov 1, to EST (UTC-5).
Does São Paulo observe daylight saving time?: No. São Paulo stays on BRT (UTC-3) all year, so its clocks don't change.
What time is it in São Paulo when it's 9 AM in Boston?: 10:00 AM in São Paulo, on the same day.

Or see every city pair, or plan with more places in the meeting planner.