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MT to BRT time converter
Brazil (São Paulo) is 3 hours ahead of US Mountain for 238 days of 2026, and 4 hours ahead of for the other 127 days, because daylight saving changes the gap.
MT to BRT conversion table
Local time in US Mountain and the matching time in Brazil (São Paulo) on two reference dates, one in winter and one in summer for the northern hemisphere.
| US Mountain (MT) | Brazil (São Paulo) on 15 January | Brazil (São Paulo) on 15 July |
|---|---|---|
| 08:00 | 12:00 | 11:00 |
| 09:00 | 13:00 | 12:00 |
| 10:00 | 14:00 | 13:00 |
| 12:00 | 16:00 | 15:00 |
| 15:00 | 19:00 | 18:00 |
| 17:00 | 21:00 | 20:00 |
| 18:00 | 22:00 | 21:00 |
| 21:00 | 01:00 (+1 day) | 00:00 (+1 day) |
Best meeting times between US Mountain and Brazil (São Paulo)
- January: Inside both working days (09:00-17:00): 09:00-13:00 MT = 13:00-17:00 BRT.
- July: Inside both working days (09:00-17:00): 09:00-14:00 MT = 12:00-17:00 BRT.
Want to add more people? The meeting planner starts with these two zones and lets you add up to four more.
Daylight saving between MT and BRT
- US Mountain moves its clocks forward on 8 March and back on 1 November in 2026.
- Brazil (São Paulo) does not change its clocks in 2026.
- The gap is 3 hours for 238 days and 4 hours for 127 days of 2026.
About the two zones
US Mountain. US Mountain Time is UTC-7 in winter (MST) and UTC-6 in summer (MDT). Arizona is the notable exception and stays on MST all year.
Brazil (São Paulo). Brasília Time, used in São Paulo, is UTC-3 all year. Brazil stopped daylight saving in 2019.
Frequently asked questions
What time is 9 AM MT in BRT?
On 15 January, 09:00 in US Mountain is 13:00 in Brazil (São Paulo). On 15 July it is 12:00.
What is the time difference between US Mountain and Brazil (São Paulo)?
Brazil (São Paulo) is 3 hours ahead of US Mountain for 238 days of 2026, and 4 hours ahead of for the other 127 days, because daylight saving changes the gap.
Does the time difference between MT and BRT change during the year?
Yes. US Mountain changes its clocks and Brazil (São Paulo) does not, so the gap moves between 3 and 4 hours. Always convert with the actual date.
When is the best time for a meeting between US Mountain and Brazil (São Paulo)?
Inside both working days (09:00-17:00): 09:00-13:00 MT = 13:00-17:00 BRT. In July: Inside both working days (09:00-17:00): 09:00-14:00 MT = 12:00-17:00 BRT.
More conversions
Need the time in a scheduler? Convert a local-time cron schedule to UTC, or see which jobs a clock change affects with the DST collision simulator.