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BRST to CST Converter

Updating current time…
BRT/BRST
Brasília time
GMT -3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
BRST is not used on this date.

This converter uses BRT (UTC−3), as in Sao Paulo.

Keep BRST (UTC−2)
CDT/CST
Central Daylight Time
GMT -5
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Central Time is on daylight saving time: CDT (UTC−5) until Sun, Nov 1.

Mexico City and Saskatchewan stay on CST (UTC−6).

Chicago · CDT (UTC−5)Mexico City, Saskatchewan · CST all year (UTC−6)

Quick answers

Selected conversion

9:00 am09:00 BRT (UTC-3), Oct 10, 2026 = 7:00 am07:00 CDT (UTC-5), Oct 10, 2026

BRT is 2 hours ahead of CDT.

BRST and CST examples

These examples always use BRST (UTC-2) and CST (UTC-6). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

BRST is 4 hours ahead of CST.

CST uses UTC-6 during standard time. For Central Time that follows daylight saving time, use BRST to CT. For daylight-time examples, use BRST to CDT.

How the time difference changes

For most of the year, BRT is 2 hours ahead of CDT. At other times of the year, BRT is 3 hours ahead of CST.

For most of the year, working hours of 9:00 am to 5:00 pm in BRT correspond to 7:00 am to 3:00 pm in CDT. At other times of the year, working hours of 9:00 am to 5:00 pm in BRT correspond to 6:00 am to 2:00 pm in CST.For most of the year, working hours of 09:00 to 17:00 in BRT correspond to 07:00 to 15:00 in CDT. At other times of the year, working hours of 09:00 to 17:00 in BRT correspond to 06:00 to 14:00 in CST.

Compare BRST time with CST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Brasília time is 2 hours ahead of Central Daylight Time.
9:00 am09:00 in BRT is 7:00 am07:00 in CDT

BRT to CDT call time
Best time for a conference call or a meeting is between 11am-5pm11:00-17:00 in BRT which corresponds to 9am-3pm09:00-15:00 in CDT

9:00 am09:00 Brasília time (BRT). Offset UTC -3:00 hours
7:00 am07:00 Central Daylight Time (CDT). Offset UTC -5:00 hours

9:00 am09:00 BRT / 7:00 am07:00 CDT

BRTCDT
12:00am10:00pm
1:00am11:00pm
2:00am12:00am
3:00am1:00am
4:00am2:00am
5:00am3:00am
6:00am4:00am
7:00am5:00am
8:00am6:00am
9:00am7:00am
10:00am8:00am
11:00am9:00am
12:00pm10:00am
1:00pm11:00am
2:00pm12:00pm
3:00pm1:00pm
4:00pm2:00pm
5:00pm3:00pm
6:00pm4:00pm
7:00pm5:00pm
8:00pm6:00pm
9:00pm7:00pm
10:00pm8:00pm
11:00pm9:00pm
00:0022:00
01:0023:00
02:0000:00
03:0001:00
04:0002:00
05:0003:00
06:0004:00
07:0005:00
08:0006:00
09:0007:00
10:0008:00
11:0009:00
12:0010:00
13:0011:00
14:0012:00
15:0013:00
16:0014:00
17:0015:00
18:0016:00
19:0017:00
20:0018:00
21:0019:00
22:0020:00
23:0021:00

Brasilia Summer Time

Offset: BRST is 2 hours behind Greenwich Mean Time (GMT) and is used in South America

BRST Time Zone Geo Map
BRST timezone map

BRST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -02 - basic short
  • -0200 - basic
  • -02:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0200 - sign character (-) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates an offset of two hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Oscar - Military abbreviation for BRST
  • O - short form of 'Oscar'
Time zones with the GMT -2 offset:
  • PMDT - Pierre & Miquelon Daylight Time
  • WGT - West Greenland Time
  • BRST - Brasilia Summer Time
  • FNT - Fernando de Noronha Time
  • O - Oscar Time Zone
  • UYST - Uruguay Summer Time

Central Standard Time

Offset: CST is 6 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries using this time zone: Belize, Canada, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua, El Salvador, United States

Principal Cities: The largest city in the CST time zone is Mexico City in Mexico, with about 12.294 million people. Other major cities in this time zone include Chicago, Houston, Iztapalapa, Ecatepec.

French: HNC - Heure Normale du Centre

Spanish: CT - Tiempo Central Estándar, CT - Zona Centro

CST Time Zone Geo Map
CST timezone map

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central Daylight Time (CDT).

Daylight saving time clock moves forward for one hourEnd: Central Standard Time (CST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

Daylight saving time clock moves back for one hourStart: Central Standard Time (CST) starts on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

See upcoming clock changes worldwide.

CST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -06 - basic short
  • -0600 - basic
  • -06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Sierra - Military abbreviation for CST
  • S - short form of 'Sierra'
IANA/Olson: Reflects CST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Bahia_Banderas
  • America/Belize
  • America/Chicago
  • America/Chihuahua
  • America/Costa_Rica
  • America/El_Salvador
  • America/Guatemala
  • America/Indiana/Knox
  • America/Indiana/Tell_City
  • America/Knox_IN
  • America/Managua
  • America/Matamoros
  • America/Menominee
  • America/Merida
  • America/Mexico_City
  • America/Monterrey
  • America/North_Dakota/Beulah
  • America/North_Dakota/Center
  • America/North_Dakota/New_Salem
  • America/Ojinaga
  • America/Rainy_River
  • America/Rankin_Inlet
  • America/Regina
  • America/Resolute
  • America/Swift_Current
  • America/Tegucigalpa
  • America/Winnipeg
  • CST6CDT
  • Canada/Central
  • Canada/Saskatchewan
  • Mexico/General
  • US/Central
  • US/Indiana-Starke
CST Abbreviation: Several time zones share CST abbreviation and it could refer to these time zones
  • Central Standard Time - UTC -6
  • China Standard Time - UTC +8
  • Cuba Standard Time - UTC -5
Time zones with the GMT -6 offset:
  • CST - Central Standard Time
  • CT - Central Time
  • MDT - Mountain Daylight Time
  • EAST - Easter Island Standard Time
  • GALT - Galapagos Time
  • S - Sierra Time Zone
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT