Offset
The time difference between Boise and São Paulo is 3 hours.
Boise (MDT) is behind São Paulo (BRT).
MDT: UTC-6
BRT: UTC-3
Boise is currently observing daylight saving time; São Paulo is not.
When to schedule
Business-hours overlap: 9 AM–2 PM in Boise (12 PM–5 PM in São Paulo).
Both teams are in working hours during this window on weekdays.
Suggested time: 11:00 AM Boise (2:00 PM São Paulo).
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
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Boise | São Paulo | Day |
|---|---|---|
| 12:00 am | 3:00 am | Same day |
| 1:00 am | 4:00 am | Same day |
| 2:00 am | 5:00 am | Same day |
| 3:00 am | 6:00 am | Same day |
| 4:00 am | 7:00 am | Same day |
| 5:00 am | 8:00 am | Same day |
| 6:00 am | 9:00 am | Same day |
| 7:00 am | 10:00 am | Same day |
| 8:00 am | 11:00 am | Same day |
| 9:00 am | 12:00 pm | Same day |
| 10:00 am | 1:00 pm | Same day |
| 11:00 am | 2:00 pm | Same day |
| 12:00 pm | 3:00 pm | Same day |
| 1:00 pm | 4:00 pm | Same day |
| 2:00 pm | 5:00 pm | Same day |
| 3:00 pm | 6:00 pm | Same day |
| 4:00 pm | 7:00 pm | Same day |
| 5:00 pm | 8:00 pm | Same day |
| 6:00 pm | 9:00 pm | Same day |
| 7:00 pm | 10:00 pm | Same day |
| 8:00 pm | 11:00 pm | Same day |
| 9:00 pm | 12:00 am | +1 day |
| 10:00 pm | 1:00 am | +1 day |
| 11:00 pm | 2:00 am | +1 day |
Daylight saving time
Boise observes daylight saving time; São Paulo does not. The offset between the two zones changes when Boise 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
- Sunrise
- 6:05 AM
- Sunset
- 9:24 PM
- Day length
- 15h 20m
- Sunrise
- 6:44 AM
- Sunset
- 5:28 PM
- Day length
- 10h 44m
Daylight overlap: 8h 23m — 6:05 AM–2:28 PM in Boise (9:05 AM–5:28 PM in São Paulo). Both locations are in daylight during this window.
Cities in these zones
Other cities in Brasilia Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Mountain Time
- BOI
Airports in Brasilia Time
- CGH
- GRU
- GIG
- SDU
- CNF
- BSB
- CWB
- GYN
- POA
Related conversions
Common conversions
- What is 9:00 am Boise in São Paulo?
- 9:00 am Boise is 12:00 pm São Paulo.
- What is 12:00 pm Boise in São Paulo?
- 12:00 pm Boise is 3:00 pm São Paulo.
- What is 12:30 pm Boise in São Paulo?
- 12:30 pm Boise is 3:30 pm São Paulo.
- What is 2:00 pm Boise in São Paulo?
- 2:00 pm Boise is 5:00 pm São Paulo.
- What is 5:00 pm Boise in São Paulo?
- 5:00 pm Boise is 8:00 pm São Paulo.
- What is 11:30 pm Boise in São Paulo?
- 11:30 pm Boise is 2:30 am São Paulo, the next day.