What is BRT in CST?
Central Time is 2 hours behind
Brasília Time is on UTC−3:00 and Central Time is on UTC−5:00 right now. Central Time is on daylight saving, so its clocks read CDT. The gap changes during the year — see below.
- Time in São Paulo
- 11:13 pm
- Time in Chicago
- 9:13 pm
- Difference
- −2 h
- Next clock change
- November 1, 2026
Convert a time
CDT — Central Time
9:00 pm
Tue
When the difference changes
Brasília Time and Central Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:
- Now – November 1, 2026Central Time is 2 hours behind
- November 1, 2026 – March 14, 2027Central Time is 3 hours behind
- March 14, 2027 – onwardsCentral Time is 2 hours behind
Periods shorter than a day are not listed: both zones change at 2am in their own local time, so there are a few hours on each transition date when the gap is briefly something else.
Daylight saving
Brasília Time
Brasília Time stays on BRT all year, so its offset from UTC never moves.
Central Time
Clocks go back one hour at 2am local time, becoming CST.
BRT to CST conversion table
Every hour of Tuesday, September 22, 2026, converted from Brasília Time to Central Time. 2 of the 24 hours fall on a different calendar day in Chicago, which is marked.
- 12:00 am BRT
- 10:00 pm CDT−1 day
- 1:00 am BRT
- 11:00 pm CDT−1 day
- 2:00 am BRT
- 12:00 am CDT
- 3:00 am BRT
- 1:00 am CDT
- 4:00 am BRT
- 2:00 am CDT
- 5:00 am BRT
- 3:00 am CDT
- 6:00 am BRT
- 4:00 am CDT
- 7:00 am BRT
- 5:00 am CDT
- 8:00 am BRT
- 6:00 am CDT
- 9:00 am BRT
- 7:00 am CDT
- 10:00 am BRT
- 8:00 am CDT
- 11:00 am BRT
- 9:00 am CDT
- 12:00 pm BRT
- 10:00 am CDT
- 1:00 pm BRT
- 11:00 am CDT
- 2:00 pm BRT
- 12:00 pm CDT
- 3:00 pm BRT
- 1:00 pm CDT
- 4:00 pm BRT
- 2:00 pm CDT
- 5:00 pm BRT
- 3:00 pm CDT
- 6:00 pm BRT
- 4:00 pm CDT
- 7:00 pm BRT
- 5:00 pm CDT
- 8:00 pm BRT
- 6:00 pm CDT
- 9:00 pm BRT
- 7:00 pm CDT
- 10:00 pm BRT
- 8:00 pm CDT
- 11:00 pm BRT
- 9:00 pm CDT
Scheduling between the two
Working hours overlap from 11:00 am to 6:00 pm BRT, which is 9:00 am to 4:00 pm CDT. Anything inside that window falls in the normal working day at both ends.
A note on CST: it can also mean China Standard Time (UTC+8) and Cuba Standard Time (UTC−5). This page means US Central Time.
Brasília Time (BRT) is used in Rio de Janeiro and Brasília. Brazil ended daylight saving in 2019.
Central Time (CDT) is used in Dallas, Houston, Mexico City and Winnipeg