ET to BRT Time Converter
BRT is 1 hour ahead of ET. The US East Coast is currently on EDT (UTC-4:00), and BRT is UTC-3:00.
Best Time to Call Between ET and BRT
Both zones are inside normal business hours between 9:00 AM and 4:00 PM ET — that's 10:00 AM to 5:00 PM BRT. That's a 7-hour window.
both at work ET only BRT only neither — hours along the strip are ET.
Common Times Converted
ET on the left, BRT on the right.
ET to BRT: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| ET | BRT | Working hours |
|---|---|---|
| 12:00 AM | 1:00 AM | — |
| 1:00 AM | 2:00 AM | — |
| 2:00 AM | 3:00 AM | — |
| 3:00 AM | 4:00 AM | — |
| 4:00 AM | 5:00 AM | — |
| 5:00 AM | 6:00 AM | — |
| 6:00 AM | 7:00 AM | — |
| 7:00 AM | 8:00 AM | — |
| 8:00 AM | 9:00 AM | BRT only |
| 9:00 AM | 10:00 AM | Both zones |
| 10:00 AM | 11:00 AM | Both zones |
| 11:00 AM | 12:00 PM | Both zones |
| 12:00 PM | 1:00 PM | Both zones |
| 1:00 PM | 2:00 PM | Both zones |
| 2:00 PM | 3:00 PM | Both zones |
| 3:00 PM | 4:00 PM | Both zones |
| 4:00 PM | 5:00 PM | ET only |
| 5:00 PM | 6:00 PM | — |
| 6:00 PM | 7:00 PM | — |
| 7:00 PM | 8:00 PM | — |
| 8:00 PM | 9:00 PM | — |
| 9:00 PM | 10:00 PM | — |
| 10:00 PM | 11:00 PM | — |
| 11:00 PM | 12:00 AM next day | — |
What ET and BRT Actually Are
ET — Eastern Time
New York, Toronto, Washington DC, Atlanta, Miami, Boston. Standing at UTC-5:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to EST.
Eastern Time covers roughly half the US population and, because of that, is the zone most American business defaults to when nobody specifies one.
BRT — Brasília Time
São Paulo, Rio de Janeiro, Brasília, Salvador. Standing at UTC-3:00 as written, and the region does not change its clocks, so that offset holds all year. Brazil abolished daylight saving in 2019, so this offset no longer shifts in the southern summer.
Brazil ran daylight saving for decades before abolishing it in 2019, on the argument that changed electricity consumption patterns had erased the savings.
What This Means in Practice
This gap is not fixed
ET changes its clocks and BRT does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, November 1, 2026 unless someone resets it.
Close enough to share a working day
At only 1 hour apart, the two working days overlap almost completely. Scheduling is barely constrained by the difference.
Major Cities in Each Zone
Cities on ET
Cities on BRT
Frequently Asked Questions
What is the time difference between ET and BRT?
BRT is 1 hour ahead of ET. That is the live figure. Taken strictly as written, the gap between ET and BRT is 2 hours — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM ET in BRT?
9:00 AM ET is 10:00 AM BRT.
What are the best hours to schedule a call between ET and BRT?
Between 9:00 AM and 4:00 PM ET, which is 10:00 AM to 5:00 PM BRT. Both sides are inside normal business hours through that window.
Does the difference between ET and BRT change during the year?
Yes. ET observes daylight saving and BRT does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.
Does BRT always mean Brasília Time?
Brazil abolished daylight saving in 2019, so this offset no longer shifts in the southern summer.