BRT to CST
BRT is UTC−3 and CST is UTC−5 today — CST is 2 hours behind BRT. Abbreviations are for reading: this page resolves BRT to America/Sao_Paulo and CST to America/Chicago, which are the names that do not go ambiguous.
BRT: Brasília time, which tzdata now writes as −03. CST: US Central — China Standard Time also uses these letters.
The working day, side by side
Hours shaded in both rows are inside working hours on both sides. Current abbreviations: UTC−3 and CDT.
| City | 00:00 in BRT | 01:00 in BRT | 02:00 in BRT | 03:00 in BRT | 04:00 in BRT | 05:00 in BRT | 06:00 in BRT | 07:00 in BRT | 08:00 in BRT | 09:00 in BRT | 10:00 in BRT | 11:00 in BRT | 12:00 in BRT | 13:00 in BRT | 14:00 in BRT | 15:00 in BRT | 16:00 in BRT | 17:00 in BRT | 18:00 in BRT | 19:00 in BRT | 20:00 in BRT | 21:00 in BRT | 22:00 in BRT | 23:00 in BRT |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BRT—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| CST—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with BRT and CST
Common questions
What is BRT in CST?
CST is 2 hours behind BRT today: noon in BRT is 10:00 in CST.
Is BRT the same all year?
Brasília time, which tzdata now writes as −03. An abbreviation describes an offset at a moment, not a place — the zone identifier America/Sao_Paulo is the unambiguous name.
When can BRT and CST meet?
Working hours overlap for 7 hours a day: the shaded overlap is 09:00–16:00 in CST (11:00–18:00 your time).