GMT to BRT Converter
BRT is 3 hours behind of GMT.
GMT
Thursday, October 1, 2026
Greenwich Mean Time · UTC+0
BRT
Thursday, October 1, 2026
Brasília Time · UTC−3
Convert GMT to BRT
GMT 18:59 = BRT 15:59
GMT to BRT time chart, hour by hour
| GMT | BRT |
|---|
| 00:00 | 21:00 −1 day |
| 01:00 | 22:00 −1 day |
| 02:00 | 23:00 −1 day |
| 03:00 | 00:00 |
| 04:00 | 01:00 |
| 05:00 | 02:00 |
| 06:00 | 03:00 |
| 07:00 | 04:00 |
| 08:00 | 05:00 |
| 09:00 | 06:00 |
| 10:00 | 07:00 |
| 11:00 | 08:00 |
| 12:00 | 09:00 |
| 13:00 | 10:00 |
| 14:00 | 11:00 |
| 15:00 | 12:00 |
| 16:00 | 13:00 |
| 17:00 | 14:00 |
| 18:00 | 15:00 |
| 19:00 | 16:00 |
| 20:00 | 17:00 |
| 21:00 | 18:00 |
| 22:00 | 19:00 |
| 23:00 | 20:00 |
Highlighted rows fall within 09:00–18:00 in both places: 6 shared working hours.
How many hours is GMT ahead of BRT?
As abbreviations, BRT is always 3 hours behind of GMT: GMT is UTC+0 and BRT is UTC−3. To convert, subtract 3 hours.
Does the GMT to BRT time difference change?
No. Brt is 3 hours behind of gmt all year, because neither place changes its clocks.
Best time for a meeting between GMT and BRT
- When BRT is 3 hours behind of GMT: 5 shared office hours, 12:00 to 17:00 in GMT (09:00 to 14:00 in BRT).
Frequently asked questions about GMT and BRT time
How many hours ahead is BRT of GMT?
BRT (UTC−3) is 3 hours behind of GMT (UTC+0).
Does the time difference between GMT and BRT change during the year?
No, it stays 3 hours behind all year because neither place changes its clocks.