GMT to BRT Converter
BRT is 3 hours behind GMT
GMT to BRT Conversion Table
Green rows indicate standard business hours (9 AM – 5 PM) in BRT
| GMT | BRT |
|---|---|
| 12:00 AM | 9:00 PM -1d |
| 1:00 AM | 10:00 PM -1d |
| 2:00 AM | 11:00 PM -1d |
| 3:00 AM | 12:00 AM |
| 4:00 AM | 1:00 AM |
| 5:00 AM | 2:00 AM |
| 6:00 AM | 3:00 AM |
| 7:00 AM | 4:00 AM |
| 8:00 AM | 5:00 AM |
| 9:00 AM | 6:00 AM |
| 10:00 AM | 7:00 AM |
| 11:00 AM | 8:00 AM |
| 12:00 PM | 9:00 AM |
| 1:00 PM | 10:00 AM |
| 2:00 PM | 11:00 AM |
| 3:00 PM | 12:00 PM |
| 4:00 PM | 1:00 PM |
| 5:00 PM | 2:00 PM |
| 6:00 PM | 3:00 PM |
| 7:00 PM | 4:00 PM |
| 8:00 PM | 5:00 PM |
| 9:00 PM | 6:00 PM |
| 10:00 PM | 7:00 PM |
| 11:00 PM | 8:00 PM |
Converting Greenwich Mean Time to Brasilia Time
Greenwich Mean Time (GMT) and Brasilia Time (BRT) are separated by a 3 hours time difference. BRT is 3 hours behind GMT. GMT is UTC+0, used in United Kingdom, Ireland, Portugal, while BRT is UTC-3, used in Brazil.
When converting from GMT to BRT, the key reference points to remember are: 9:00 AM GMT equals 6:00 AM BRT, 12:00 PM noon GMT equals 9:00 AM BRT, and 5:00 PM GMT equals 2:00 PM BRT. The conversion table above shows every hour of the day mapped between these two time zones.
Scheduling Across GMT and BRT
For professionals scheduling meetings between GMT and BRT, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 3 hours difference, the window of overlap may be limited. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.
Daylight Saving Time Considerations
GMT observes Daylight Saving Time, switching to BST (UTC+1) during summer months. BRT does not observe DST, staying at UTC-3 year-round. During DST transitions, the time difference between these zones may temporarily change by 1 hour. Always verify the current offset during spring and fall transition periods.