CST
Central Standard Time
GMT -6
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Brazil
BRT
12am
3am
6am
9am
12pm
3pm
6pm
9pm

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

Time Difference

Central Standard Time is 3 hours behind BRT (Brasilia Time)
6:00 am06:00 in CST is 9:00 am09:00 in Sao Paulo, Brazil

CST to São Paulo call time
Best time for a conference call or a meeting is between 9am-2pm in CST which corresponds to 12pm-5pm in São Paulo

6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours
9:00 am09:00 BRT (Brasilia Time) (Sao Paulo, Brazil). Offset UTC -3:00 hours

6:00 am06:00 CST / 9:00 am09:00 Sao Paulo, Brazil

CSTSao Paulo, Brazil
12am (midnight)3am
1am4am
2am5am
3am6am
4am7am
5am8am
6am9am
7am10am
8am11am
9am12pm (noon)
10am1pm
11am2pm
12pm (noon)3pm
1pm4pm
2pm5pm
3pm6pm
4pm7pm
5pm8pm
6pm9pm
7pm10pm
8pm11pm
9pm12am (midnight)
10pm1am
11pm2am
00:0003:00
01:0004:00
02:0005:00
03:0006:00
04:0007:00
05:0008:00
06:0009:00
07:0010:00
08:0011:00
09:0012:00
10:0013:00
11:0014:00
12:0015:00
13:0016:00
14:0017:00
15:0018:00
16:0019:00
17:0020:00
18:0021:00
19:0022:00
20:0023:00
21:0000:00
22:0001:00
23:0002:00

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 back for one hour from 2am to 1amStart: Central Standard Time (CST) started on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually on the first Sunday of November.

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

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

São Paulo Information

Time Zone

Abbreviation / Name
BRT - Brasília time
UTC / GMT Offset
-3:00 hours during Brasília time, currently in use.

São Paulo Facts

Country
Brazil
Alternative Names
SAO, Sampa, San Paolo, San Paul ed Brasil, San Paulas, San Paulo, San Paulu, San Paulu du Brasili, San Paulu dû Brasili, San Pauluw, San Pawlo, San Polo del Braxil, San Poulo, San Poło del Braxil, San Pàul ëd Brasil, San-Paulo, San-Paulu, San-Paŭlo, Sanpaulu, Sao Paolo, Sao Paulo, Sao Paulo capital, Saun Paulu, Sawo Palo, Sawo Pålo, São Paolo, São Paulo, São Paulo capital, Urbs Paulistana, cavo pavulo, sa'o pa'ulo, sa'o paulo, samu pa'ulu, sangpaollo, sangpaollu, sangpaullo, sangpaullu, sankt. paulos, sanpauro, savea pealea, savo palo, saw bawlw, saw palw, saw pwlw, saywpaywlw, sea pea lu, sheng bao luo, Σάο Πάολο, Сан Пауло, Сан Паулу, Сан-Паулу, Сан-Паўлу, Сао Паоло, Сао Пауло, Սան Պաուլու, סאו פאולא, סאו פאולו, ساؤ پالو, ساؤ پولو, سائوپائولو, ساو باولو, ܣܐܘ ܦܐܘܠܘ, ސައޮ ޕައުލޯ, साओ पाउलो, সাঁউ পাউলু, সাও পাউলো, சாவோ பாவுலோ, శఒ పౌలొ, ಸಾವೊ ಪಾಲೊ, സാവോ പോളോ, เซาเปาลู, ဆောပိုလိုမြို့, სან-პაულუ, ሳው ፓውሉ, サンパウロ, 聖保羅, 상파올로, 상파올루, 상파울로, 상파울루
Population
10,021,295
Currency
Real (BRL)
Geographic Coordinates
23° 32' S Latitude / 46° 38' W Longitude
International Dialing Code
+55