BRT to GMT: BRT is 3 hours behind GMT
Brasilia Time is 3 hours behind Greenwich Mean Time, on every day of the year. It is 7:07 pm BRT in Brasilia and 10:07 pm GMT in GMT.
Convert a specific time from BRT to GMT
Pick any time and date to convert it both ways. The conversion runs in your browser against the real zone rules, so a date inside a daylight saving period gets that period's offset rather than today's.
What is the time difference between BRT and GMT?
Greenwich Mean Time is 3 hours ahead of Brasilia Time. To go from BRT to GMT you add 3 hours. That gap holds on all 365 days of 2026: neither zone moves its clocks.
BRT to GMT conversion table
Every hour of Thursday, September 24, 2026 in Brasilia, with the matching reading in GMT. 3 of the 24 hours land on a different calendar date in GMT, which is the part people get wrong when they schedule across this pair.
| BRT | BRT 24h | GMT | GMT 24h | Date |
|---|---|---|---|---|
| 12:00 am | 00:00 | 3:00 am | 03:00 | same day |
| 1:00 am | 01:00 | 4:00 am | 04:00 | same day |
| 2:00 am | 02:00 | 5:00 am | 05:00 | same day |
| 3:00 am | 03:00 | 6:00 am | 06:00 | same day |
| 4:00 am | 04:00 | 7:00 am | 07:00 | same day |
| 5:00 am | 05:00 | 8:00 am | 08:00 | same day |
| 6:00 am | 06:00 | 9:00 am | 09:00 | same day |
| 7:00 am | 07:00 | 10:00 am | 10:00 | same day |
| 8:00 am | 08:00 | 11:00 am | 11:00 | same day |
| 9:00 am | 09:00 | 12:00 pm | 12:00 | same day |
| 10:00 am | 10:00 | 1:00 pm | 13:00 | same day |
| 11:00 am | 11:00 | 2:00 pm | 14:00 | same day |
| 12:00 pm | 12:00 | 3:00 pm | 15:00 | same day |
| 1:00 pm | 13:00 | 4:00 pm | 16:00 | same day |
| 2:00 pm | 14:00 | 5:00 pm | 17:00 | same day |
| 3:00 pm | 15:00 | 6:00 pm | 18:00 | same day |
| 4:00 pm | 16:00 | 7:00 pm | 19:00 | same day |
| 5:00 pm | 17:00 | 8:00 pm | 20:00 | same day |
| 6:00 pm | 18:00 | 9:00 pm | 21:00 | same day |
| 7:00 pm | 19:00 | 10:00 pm | 22:00 | same day |
| 8:00 pm | 20:00 | 11:00 pm | 23:00 | same day |
| 9:00 pm | 21:00 | 12:00 am | 00:00 | the next day |
| 10:00 pm | 22:00 | 1:00 am | 01:00 | the next day |
| 11:00 pm | 23:00 | 2:00 am | 02:00 | the next day |
What are the best hours to schedule a call between BRT and GMT?
5 hours of the standard 9:00 am to 5:00 pm working day line up in both zones, from 9:00 am BRT to 2:00 pm BRT. In GMT that window reads 12:00 pm to 5:00 pm. Outside it, one side is either not yet at their desk or already gone.
| BRT | GMT | Working hours | Note |
|---|---|---|---|
| 9:00 am | 12:00 pm | both sides | mid morning in Brasilia, noon in GMT |
| 10:00 am | 1:00 pm | both sides | mid morning in Brasilia, afternoon in GMT |
| 11:00 am | 2:00 pm | both sides | mid morning in Brasilia, afternoon in GMT |
| 12:00 pm | 3:00 pm | both sides | noon in Brasilia, afternoon in GMT |
| 1:00 pm | 4:00 pm | both sides | afternoon in Brasilia, afternoon in GMT |
Does daylight saving change BRT to GMT?
Brasilia Time does not move its clocks at all, so its UTC-3 offset holds every day of the year.
Greenwich Mean Time does not move its clocks at all, so its UTC+0 offset holds every day of the year.
Is BRT ahead of or behind GMT?
BRT is behind GMT by 3 hours: when it is 12:00 pm in Brasilia, it is 3:00 pm in GMT. Neither Brasilia Time nor Greenwich Mean Time observes daylight saving, so the abbreviations never change and the gap between them is fixed.
Brasilia Time covers Sao Paulo and Rio de Janeiro, fixed since Brazil dropped summer time in 2019. Greenwich Mean Time covers identical to UTC as a clock reading, and a separate thing as a standard. The identifiers behind them are America/Sao_Paulo and Etc/GMT, which is what any calendar or scheduling system should be storing rather than a fixed number of hours.
Questions
- What is BRT in GMT?
- BRT is 3 hours behind GMT. 9:00 am BRT is 12:00 pm GMT.
- How many hours ahead is GMT of BRT?
- GMT is 3 hours ahead of BRT.
- What time is it in GMT right now?
- 10:07 pm GMT on Thursday, September 24, 2026.
- When can Brasilia and GMT meet during working hours?
- Between 9:00 am and 2:00 pm BRT, which is 12:00 pm to 5:00 pm GMT.
- Does this account for daylight saving?
- Yes. Every reading is computed from the IANA database for the actual date, so BRT and GMT are the abbreviations genuinely in force today rather than a fixed assumption.
Other conversions
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