Turn a Brasilia Time reading into Coordinated Universal Time. The panels show both clocks live, and the roller lets you line up any BRT time against its UTC equivalent.
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)
| BRT | UTC | Date |
|---|---|---|
| 21:00 | 00:00 | Next day in UTC |
| 22:00 | 01:00 | Next day in UTC |
| 23:00 | 02:00 | Next day in UTC |
| 00:00 | 03:00 | Same day |
| 01:00 | 04:00 | Same day |
| 02:00 | 05:00 | Same day |
| 03:00 | 06:00 | Same day |
| 04:00 | 07:00 | Same day |
| 05:00 | 08:00 | Same day |
| 06:00 | 09:00 | Same day |
| 07:00 | 10:00 | Same day |
| 08:00 | 11:00 | Same day |
| 09:00 | 12:00 | Same day |
| 10:00 | 13:00 | Same day |
| 11:00 | 14:00 | Same day |
| 12:00 | 15:00 | Same day |
| 13:00 | 16:00 | Same day |
| 14:00 | 17:00 | Same day |
| 15:00 | 18:00 | Same day |
| 16:00 | 19:00 | Same day |
| 17:00 | 20:00 | Same day |
| 18:00 | 21:00 | Same day |
| 19:00 | 22:00 | Same day |
| 20:00 | 23:00 | Same day |
Brasilia Time is the local clock in Brazil. Converting it to UTC removes the local offset so the time can be shared with anyone in the world without ambiguity — which is exactly why UTC is used for servers, aviation and international scheduling.
Brasilia Time covers Brazil's most populous regions, including São Paulo and Rio de Janeiro.
Subtract the current offset shown in the offset panel from the local BRT time. If the result goes below 00:00, UTC is still on the previous date. Use the roller to read the pairing directly instead of doing the arithmetic.
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.
Early-morning or late-night local times frequently sit on a different UTC date. The converter labels every selection as SAME DAY, NEXT DAY or PREVIOUS DAY so a deadline written in UTC is never off by 24 hours.
Brazil ended daylight saving time in 2019. Brasilia Time is a constant UTC -03:00.