BRT to CST Converter
CST is 3 hours behind BRT. 9:00 AM BRT = 6:00 AM CST.
CST is 3 hours behind BRT at the moment. To convert BRT to CST, subtract 3 hours from the BRT time: 9:00 AM BRT = 6:00 AM CST.
BRT (Brasília Time) is used in Brasília, São Paulo, Rio de Janeiro. CST (Central Time) is used in Chicago, Dallas, Houston, Minneapolis, New Orleans, Winnipeg; Mexico City and Central America use UTC−6 all year.
CST here means North American Central Standard Time, not China Standard Time.
BRT to CST time conversion table
BRT to CST on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| BRT | CST | Day |
|---|---|---|
| 12:00 AM BRT | 9:00 PM CST | previous day |
| 1:00 AM BRT | 10:00 PM CST | previous day |
| 2:00 AM BRT | 11:00 PM CST | previous day |
| 3:00 AM BRT | 12:00 AM CST | night |
| 4:00 AM BRT | 1:00 AM CST | night |
| 5:00 AM BRT | 2:00 AM CST | night |
| 6:00 AM BRT | 3:00 AM CST | night |
| 7:00 AM BRT | 4:00 AM CST | night |
| 8:00 AM BRT | 5:00 AM CST | night |
| 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 | work hours |
| 1:00 PM BRT | 10:00 AM CST | work hours |
| 2:00 PM BRT | 11:00 AM CST | work hours |
| 3:00 PM BRT | 12:00 PM CST | work hours |
| 4:00 PM BRT | 1:00 PM CST | work hours |
| 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 | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert BRT to CST
Subtract 3 hours from the BRT time to get CST.
Example: 9:00 AM BRT = 6:00 AM CST.
Across midnight: 1:00 AM BRT = 10:00 PM CST (previous day). The date changes, so always check the day as well as the hour.
Time difference between BRT and CST
The time difference between BRT and CST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 31 Dec 2025 – 7 Mar 2026: CST is 3 hours behind of BRT.
- 8 Mar 2026 – 31 Oct 2026: CST is 2 hours behind of BRT.
- 1 Nov 2026 – 30 Dec 2026: CST is 3 hours behind of BRT.
BRT and CST during daylight saving time
- BRT does not observe daylight saving time; it stays on UTC−3 all year.
- CST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from CST (UTC−6) to CDT (UTC−5).
Best time for a meeting between BRT and CST
BRT and CST share 5 hours of the 9 AM–5 PM working day. Any time between 12:00 PM and 5:00 PM BRT lands between 9:00 AM and 2:00 PM CST, inside working hours for both.
BRT to CST FAQ
What is the time difference between BRT and CST?
Right now CST is 3 hours behind BRT. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM BRT in CST?
9:00 AM BRT is 6:00 AM CST.
What is 12 PM (noon) BRT in CST?
12:00 PM BRT is 9:00 AM CST.
Is CST ahead of or behind BRT?
CST is 3 hours behind BRT, so it is earlier in CST than in BRT.
Does BRT change for daylight saving time?
No. BRT stays on the same offset all year, so conversions never shift for daylight saving time.
Does CST change for daylight saving time?
Yes. CST next changes on 14 Mar 2027, when clocks go forward one hour from CST to CDT.
What is the best time for a meeting between BRT and CST?
BRT and CST share 5 hours of the 9 AM–5 PM working day. Any time between 12:00 PM and 5:00 PM BRT lands between 9:00 AM and 2:00 PM CST, inside working hours for both.
Is CT the same as CST?
CST is the winter (standard) name of Central Time (CT). From March to November the same clocks are called CDT. This converter always uses the one in force on the date you choose.
Related conversions
Convert CST to BRT
Convert BRT to other time zones
Convert other time zones to CST
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.