World Timezones

MST to BRT Converter

Compare BRT to MST instead
Mountain Time10:35 pmThu, Jun 4
Mountain TimeMDT
North America · UTC-6
10:35 pmThu, Jun 4
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
Brasilia TimeBRT
South America · UTC-3
1:35 amFri, Jun 5
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a

Offset

The time difference between Mountain Time and Brasilia Time is 3 hours.

3 hours

Mountain Time (MDT) is behind Brasilia Time (BRT).

MDT: UTC-6

BRT: UTC-3

Mountain Time is currently observing daylight saving time; Brasilia Time is not.

When to schedule

Business-hours overlap: 9 AM–2 PM in Mountain Time (12 PM–5 PM in Brasilia Time).

Both teams are in working hours during this window on weekdays.

Suggested time: 11:00 AM Mountain Time (2:00 PM Brasilia Time).

This window may shift by an hour during daylight saving time.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

United States

  • New Year's DayThu, Jan 1
  • Martin Luther King, Jr. DayMon, Jan 19
  • Presidents DayMon, Feb 16
  • Memorial DayMon, May 25
  • Juneteenth National Independence DayFri, Jun 19
  • Independence DayFri, Jul 3
  • Labour DayMon, Sep 7
  • Columbus DayMon, Oct 12
  • Veterans DayWed, Nov 11
  • Thanksgiving DayThu, Nov 26
  • Christmas DayFri, Dec 25

Brazil

  • New Year's DayThu, Jan 1
  • CarnivalMon, Feb 16
  • CarnivalTue, Feb 17
  • Good FridayFri, Apr 3
  • Easter SundaySun, Apr 5
  • TiradentesTue, Apr 21
  • Labour DayFri, May 1
  • Corpus ChristiThu, Jun 4
  • Independence DayMon, Sep 7
  • Our Lady of AparecidaMon, Oct 12
  • All Souls' DayMon, Nov 2
  • Republic Proclamation DaySun, Nov 15
  • Black Awareness DayFri, Nov 20
  • Christmas DayFri, Dec 25

About these zones

Mountain Time is also known as MST, or MDT. To call United States, dial +1.

Brasilia Time is also known as BRT. To call Brazil, dial +55.

Brasilia Time is approximately 5,750 miles southeast of Mountain Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

MSTBRTDay
12:00 am3:00 amSame day
1:00 am4:00 amSame day
2:00 am5:00 amSame day
3:00 am6:00 amSame day
4:00 am7:00 amSame day
5:00 am8:00 amSame day
6:00 am9:00 amSame day
7:00 am10:00 amSame day
8:00 am11:00 amSame day
9:00 am12:00 pmSame day
10:00 am1:00 pmSame day
11:00 am2:00 pmSame day
12:00 pm3:00 pmSame day
1:00 pm4:00 pmSame day
2:00 pm5:00 pmSame day
3:00 pm6:00 pmSame day
4:00 pm7:00 pmSame day
5:00 pm8:00 pmSame day
6:00 pm9:00 pmSame day
7:00 pm10:00 pmSame day
8:00 pm11:00 pmSame day
9:00 pm12:00 am+1 day
10:00 pm1:00 am+1 day
11:00 pm2:00 am+1 day

Daylight saving time

Mountain Time observes daylight saving time; Brasilia Time does not. The offset between the two zones changes when Mountain Time transitions: on Sunday, November 1, 2026, clocks fall back from MDT to MST.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Mountain Time
Sunrise
5:34 AM
Sunset
8:25 PM
Day length
14h 51m
Brasilia Time
Sunrise
6:44 AM
Sunset
5:28 PM
Day length
10h 45m

Cities in these zones

Cities in Mountain Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Mountain Time

  • BJC
  • DEN
  • OGD
  • SLC

Airports in Brasilia Time

  • CGH
  • GRU
  • GIG
  • SDU
  • CNF
  • BSB
  • CWB
  • GYN
  • POA

Related conversions

Common conversions

What is 9:00 am MST in BRT?
9:00 am MST is 12:00 pm BRT.
What is 12:00 pm MST in BRT?
12:00 pm MST is 3:00 pm BRT.
What is 12:30 pm MST in BRT?
12:30 pm MST is 3:30 pm BRT.
What is 2:00 pm MST in BRT?
2:00 pm MST is 5:00 pm BRT.
What is 5:00 pm MST in BRT?
5:00 pm MST is 8:00 pm BRT.
What is 11:30 pm MST in BRT?
11:30 pm MST is 2:30 am BRT, the next day.