See the live UTC time next to the current time in Brazil, check today's real offset, and roll through any UTC time to find the matching BRT time — including when the two zones fall on different dates.
Brasilia Time
Coordinated Universal Time
US Eastern Time
THE CLOCKS ABOVE ALWAYS SHOW THE LIVE CURRENT TIME. THE ROLLER BELOW IS A LOOKUP TOOL — ROTATING IT NEVER CHANGES THEM.
BRT is 3 hours behind UTC
ET is 4 hours behind UTC
Brazil is 1 hour ahead of United States (Eastern)
| UTC | BRT | Date |
|---|---|---|
| 00:00 | 21:00 | Previous day in Brazil |
| 01:00 | 22:00 | Previous day in Brazil |
| 02:00 | 23:00 | Previous day in Brazil |
| 03:00 | 00:00 | Same day |
| 04:00 | 01:00 | Same day |
| 05:00 | 02:00 | Same day |
| 06:00 | 03:00 | Same day |
| 07:00 | 04:00 | Same day |
| 08:00 | 05:00 | Same day |
| 09:00 | 06:00 | Same day |
| 10:00 | 07:00 | Same day |
| 11:00 | 08:00 | Same day |
| 12:00 | 09:00 | Same day |
| 13:00 | 10:00 | Same day |
| 14:00 | 11:00 | Same day |
| 15:00 | 12:00 | Same day |
| 16:00 | 13:00 | Same day |
| 17:00 | 14:00 | Same day |
| 18:00 | 15:00 | Same day |
| 19:00 | 16:00 | Same day |
| 20:00 | 17:00 | Same day |
| 21:00 | 18:00 | Same day |
| 22:00 | 19:00 | Same day |
| 23:00 | 20:00 | Same day |
Coordinated Universal Time (UTC) is the world's time standard: it never shifts for seasons and every other zone is described as an offset from it. Brasilia Time (BRT) is the clock used in Brazil. Converting UTC to BRT means adding that offset to the UTC reading.
Brasilia Time covers Brazil's most populous regions, including São Paulo and Rio de Janeiro.
Take the UTC time, apply the current BRT offset shown in the live panel above, and roll the date forward or back if the result crosses midnight. The interactive roller does all three steps for you: the left drum is UTC, the right drum is BRT, and a day badge appears whenever the local date differs.
BRT has no daylight saving changes, so the offset to UTC is stable all year. It is still calculated live from the America/Sao_Paulo IANA database rather than hard-coded.
The reference table below the tool lists every UTC half hour against the matching BRT time for today, so you can copy a conversion without touching the roller.
Brazil ended daylight saving time in 2019. Brasilia Time is a constant UTC -03:00.