Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between mdt and brt?
Mountain Daylight Time (mdt) is UTC-6 and Brasilia Time (brt) is UTC-3. The difference between them is 3 hours.
Where is mdt used?
Mountain Daylight Time (mdt) is used in USA and surrounding regions. The IANA timezone identifier is America/Denver.
Where is brt used?
Brasilia Time (brt) is used in Brazil and surrounding regions. The IANA timezone identifier is America/Sao_Paulo.
How do I convert mdt to brt?
Use the interactive converter above. Drag the time slider to any mdt time and the brt equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
MDT (Denver) is 3 hours behind BRT (São Paulo). At noon in MDT (Denver), your contact in BRT (São Paulo) sees 15:00.
MDT (Denver) runs on America/Denver; BRT (São Paulo) runs on America/Sao_Paulo. Together they are 3 hours apart.
Business hours comparison
MDT (Denver) and BRT (São Paulo) share 5 hours of overlapping business hours daily — enough for real-time collaboration without anyone joining at odd hours.
00:0006:0012:0018:0024:00
MDT (Denver)
BRT (São Paulo)
Overlap (5h)
Best call times between these locations
There is a 5-hour daily window where both locations are in business hours. The 3 best slots are listed below.
09:00 Denver / 12:00 São Paulo✓ Both working
10:00 Denver / 13:00 São Paulo✓ Both working
11:00 Denver / 14:00 São Paulo✓ Both working
Working hours defined as 09:00–17:00 local time for each location.
Public holidays for both locations
⚡ Holiday alerts for both locations, double-check schedules before confirming.
MDT (Denver)8 holidays
Jun 19Juneteenth National Independence DaySOON
Jul 3Independence Day
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
BRT (São Paulo)7 holidays
Jul 9Constitutionalist Revolution of 1932
Sep 7Independence Day
Oct 12Our Lady of Aparecida
Nov 2All Souls' Day
Nov 15Republic Proclamation Day
Scheduling between MDT (Denver) and BRT (São Paulo)
MDT (Denver) (USA) and BRT (São Paulo) (Brazil) are 3 hours apart. With a 5-hour daily overlap in standard business hours, both teams can connect in real time without either side stretching beyond their normal workday.
💡 Scheduling tips for these locations
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If you are in MDT (Denver), aim for 09:00–10:00, which corresponds to 12:00–13:00 in BRT (São Paulo) — both teams are within working hours.
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If you are in MDT (Denver), aim for 10:00–11:00, which corresponds to 13:00–14:00 in BRT (São Paulo) — both teams are within working hours.
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If you are in MDT (Denver), aim for 11:00–12:00, which corresponds to 14:00–15:00 in BRT (São Paulo) — both teams are within working hours.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am MDT (Denver)".
