Skip to content
DateAlmanac

What is BRT in CST?

Central Time is 3 hours behind

Brasília Time is on UTC−3:00 and Central Time is on UTC−6:00 right now. The gap changes during the year — see below.

Convert a time

CST — Central Time

2:00 am

CST, Sat

Time in São Paulo
5:29:01 AM
Time in Chicago
2:29:01 AM
Difference
−3 h
Next clock change
March 14, 2027

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:

  1. Now – March 14, 2027Central Time is 3 hours behind
  2. March 14, 2027 – November 7, 2027Central Time is 2 hours behind
  3. November 7, 2027 – onwardsCentral Time is 3 hours behind

Periods shorter than a day are not listed. Each zone changes at its own local time, so on a date when both move there are a few hours when the gap is briefly something else.

Daylight saving

Brasília Time

No clock changes

Brasília Time stays on BRT all year, so its offset from UTC never moves.

Central Time

Sunday, March 14, 2027

Clocks go forward one hour — 2:00 am becomes 3:00 am local time, and the zone is on CDT after that.

BRT to CST conversion table

Every hour of Saturday, November 7, 2026, converted from Brasília Time to Central Time. 3 of the 24 hours fall on a different calendar day in Chicago, which is marked.

12:00 am BRT
9:00 pm CST−1 day
1:00 am BRT
10:00 pm CST−1 day
2:00 am BRT
11:00 pm CST−1 day
3:00 am BRT
12:00 am CST
4:00 am BRT
1:00 am CST
5:00 am BRT
2:00 am CST
6:00 am BRT
3:00 am CST
7:00 am BRT
4:00 am CST
8:00 am BRT
5:00 am CST
9:00 am BRT
6:00 am CST
10:00 am BRT
7:00 am CST
11:00 am BRT
8:00 am CST
12:00 pm BRT
9:00 am CST
1:00 pm BRT
10:00 am CST
2:00 pm BRT
11:00 am CST
3:00 pm BRT
12:00 pm CST
4:00 pm BRT
1:00 pm CST
5:00 pm BRT
2:00 pm CST
6:00 pm BRT
3:00 pm CST
7:00 pm BRT
4:00 pm CST
8:00 pm BRT
5:00 pm CST
9:00 pm BRT
6:00 pm CST
10:00 pm BRT
7:00 pm CST
11:00 pm BRT
8:00 pm CST

Scheduling between the two

Working hours overlap from 12:00 pm to 6:00 pm BRT, which is 9:00 am to 3:00 pm CST. 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 (CST) is used in Dallas, Houston, Mexico City and Winnipeg

Other conversions