CST to BRT Time Converter

Convert Central Standard Time (CST) to Brasília Time (BRT). Both time zones are shown live below; current offset between them is 2 hours ahead.

Chicago · Central Standard Time
13:17:51
Wednesday, May 13, 2026
CDT · UTC-05:00
São Paulo · Brasília Time
15:17:51
Wednesday, May 13, 2026
GMT-3 · UTC-03:00

Convert a specific time

From: CST (Chicago)
To: BRT (São Paulo)
--:--

Daylight Saving status right now

CST (Central Standard Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-11-01
Offset shift
UTC-05:00 → UTC-06:00
BRT (Brasília Time)
Observes DST
No

Heads up: CST observes DST while BRT does not. The 2-hour difference shown above will shift by one hour when CST starts or ends DST.

When can CST and BRT meet?

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
BRT
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Chicago (CST). Each row shows the local working-hours state in that zone for the same moment in time.
6 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 09:00–14:00 CST (11:00–16:00 BRT).

Hour-by-hour CST to BRT conversion table

CST time (Chicago)BRT time (São Paulo)Status
00:00 Wed02:00 WedOff-hours both sides
01:00 Wed03:00 WedOff-hours both sides
02:00 Wed04:00 WedOff-hours both sides
03:00 Wed05:00 WedOff-hours both sides
04:00 Wed06:00 WedOff-hours both sides
05:00 Wed07:00 WedOff-hours both sides
06:00 Wed08:00 WedOff-hours both sides
07:00 Wed09:00 WedBRT working
08:00 Wed10:00 WedBRT working
09:00 Wed11:00 WedBoth at work
10:00 Wed12:00 WedBoth at work
11:00 Wed13:00 WedBoth at work
12:00 Wed14:00 WedBoth at work
13:00 Wed15:00 WedBoth at work
14:00 Wed16:00 WedBoth at work
15:00 Wed17:00 WedCST working
16:00 Wed18:00 WedCST working
17:00 Wed19:00 WedOff-hours both sides
18:00 Wed20:00 WedOff-hours both sides
19:00 Wed21:00 WedOff-hours both sides
20:00 Wed22:00 WedOff-hours both sides
21:00 Wed23:00 WedOff-hours both sides
22:00 Wed00:00 ThuOff-hours both sides
23:00 Wed01:00 ThuOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Central Standard Time (CST)
IANA identifier
America/Chicago
Current UTC offset
UTC-05:00
Current abbreviation
CDT
Major cities in this zone
ChicagoHoustonDallasAustinNew Orleans
Brasília Time (BRT)
IANA identifier
America/Sao_Paulo
Current UTC offset
UTC-03:00
Current abbreviation
GMT-3
Major cities in this zone
São PauloRio de JaneiroBrasília

Sun today in Chicago and São Paulo

Chicago
Sunrise
05:33
Sunset
20:02
Solar noon
12:48
Daylight
14h 28m
São Paulo
Sunrise
06:33
Sunset
17:34
Solar noon
12:04
Daylight
11h 1m

Related converters

BRT to CST (reverse)CST to ESTCST to PSTCST to GMTCST to UTCCST to CETEST to BRTPST to BRTGMT to BRTUTC to BRTCET to BRT
Looking for local time? See time in Chicago or time in São Paulo.

Frequently asked questions

What is the time difference between CST and BRT right now?+
BRT (Brasília Time) is currently 2 hours ahead CST (Central Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does CST or BRT observe daylight saving time?+
CST: observes daylight saving time. BRT: does not observe daylight saving time.
When is the best time to schedule a meeting between CST and BRT?+
The strongest overlap is 09:00–14:00 CST (11:00–16:00 BRT), giving 6 hours when both sides are within standard 9am-5pm working hours.
What time is it in São Paulo when it is 12:00 noon in Chicago?+
When it is 12:00 Wed in Chicago (CST), it is 14:00 Wed in São Paulo (BRT).
Which IANA time zone identifiers are used for CST and BRT?+
CST maps to "America/Chicago" in the IANA database. BRT maps to "America/Sao_Paulo". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Chicago ahead of or behind São Paulo?+
Whether Chicago (CST) is ahead of or behind São Paulo (BRT) depends on the current UTC offsets. Right now BRT is 2 hours ahead CST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for CST and BRT?+
CST is UTC-05:00 (CDT) and BRT is UTC-03:00 (GMT-3). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both CST and BRT?+
Yes. There are 6 hours of overlap during standard 9am-5pm working hours, with the strongest window at 09:00–14:00 CST.