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São Paulo to Mexico City

-3h

São Paulo

BRTSOURCE
Brazil · UTC-03:00
HH12
:
MM00
  
12:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM

Mexico City

CST
Mexico · UTC-06:00
HH09
:
MM00
  
09:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM
São Paulo
Mexico City
12:00 AM
9:00 PM-1
2:00 AM
11:00 PM-1
4:00 AM
1:00 AM
6:00 AM
3:00 AM
8:00 AM
5:00 AM
10:00 AM
7:00 AM
12:00 PM
9:00 AM
2:00 PM
11:00 AM
4:00 PM
1:00 PM
6:00 PM
3:00 PM
8:00 PM
5:00 PM
10:00 PM
7:00 PM

Green rows indicate typical business hours (9 AM - 5 PM)

BRT and CST on the World Map

The map below highlights the BRT (Brasilia Time) and CST (Central Standard Time) timezone regions across the globe.

BRTCSTSão PauloRio de JaneiroBrasíliaBelo HorizonteChicagoHoustonDallasSan Antonio
BRT Zone
→
CST Zone

Explore all world timezones interactively →

BRT – Brasilia Time

UTC-03:00

Brasilia Time (BRT) is the time zone for eastern Brazil, 3 hours behind UTC.

Countries in BRT
Brazil (eastern)
Major Cities in BRT
São PauloRio de JaneiroBrasíliaBelo HorizonteSalvadorFortalezaRecifeCuritiba
Key Facts about BRT
  • •Brazil abolished daylight saving time in 2019.
  • •São Paulo is the largest city in the Southern Hemisphere.
  • •BRT is 2 hours ahead of EST.
  • •Brazil spans four different time zones.
  • •The B3 stock exchange in São Paulo operates on BRT.
Daylight Saving:No – UTC-03:00 year-round
Learn more about BRT on Wikipedia

CST – Central Standard Time

UTC-06:00

Central Standard Time (CST) is the time zone for the central United States, Canada, and Mexico, 6 hours behind UTC.

Countries in CST
United States (Central)Canada (Manitoba, Saskatchewan)MexicoGuatemalaHondurasEl SalvadorCosta RicaNicaraguaBelize
Major Cities in CST
ChicagoHoustonDallasSan AntonioMexico CityAustinWinnipegMemphisMilwaukeeNashvilleKansas CityNew OrleansMinneapolisGuatemala City
Key Facts about CST
  • •CST covers 20 US states fully or partially.
  • •Chicago and Houston are the two largest cities in the Central Time Zone.
  • •Mexico City, one of the world's most populous cities, operates on CST.
  • •CST is 1 hour behind EST and 2 hours ahead of PST.
Daylight Saving:Yes – switches to CDT
Learn more about CST on Wikipedia

About São Paulo

Wikipedia

São Paulo operates on Brasília Time (BRT), UTC-3. As South America's largest financial center, São Paulo's B3 exchange is the Americas' second-largest.

Population:12.4 million
Metro:22.4 million
Business Hours:9:00 AM - 6:00 PM BRT
Currency:BRL (R$)
Stock Exchange:B3 (Brasil Bolsa Balcão)
Key Landmarks
Paulista AvenueIbirapuera ParkSão Paulo CathedralMASPPinacoteca
Did You Know?

The city has more helicopters than any other city in the world due to traffic congestion.

Learn more about BRT timezone →

About Mexico City

Wikipedia

Mexico City operates on Central Time (CST/CDT), same as Chicago. As North America's largest city, Mexico City bridges US and Latin American business hours.

Population:9.2 million
Metro:21.8 million
Business Hours:9:00 AM - 6:00 PM CST
Currency:MXN ($)
Stock Exchange:BMV (Bolsa Mexicana de Valores)
Key Landmarks
ZócaloPalacio de Bellas ArtesChapultepec CastleTemplo MayorAngel of Independence
Did You Know?

Mexico City is the oldest capital city in the Americas.

Learn more about CST timezone →

São Paulo vs Mexico City: Offsets, DST and Best Call Times

São Paulo runs on Brasilia Standard Time (BRT) at UTC-03:00. Mexico City runs on Central Standard Time (CST) at UTC-06:00. That puts São Paulo 3 hours behind Mexico City — a difference of -3h at the current offsets.

In practice, when it is 9:00 AM in São Paulo it is 6:00 AM in Mexico City. Midnight in São Paulo is 9:00 PM in Mexico City. Neither zone observes daylight saving time, so the offset between them stays constant all year.

São Paulo to Mexico City time conversion table

São Paulo (BRT)Mexico City (CST)Day
12:00 AM9:00 PMprevious day
6:00 AM3:00 AMsame day
7:00 AM4:00 AMsame day
8:00 AM5:00 AMsame day
9:00 AM6:00 AMsame day
12:00 PM9:00 AMsame day
3:00 PM12:00 PMsame day
5:00 PM2:00 PMsame day
6:00 PM3:00 PMsame day
9:00 PM6:00 PMsame day

Why people convert São Paulo to Mexico City time

  • Scheduling a call from São Paulo to Mexico City: a 10:00 AM start in São Paulo lands at 7:00 AM in Mexico City, so you can confirm the slot without doing the arithmetic yourself.
  • Finding shared working hours: both São Paulo and Mexico City are inside the 9-to-5 working day between 12:00 PM and 5:00 PM BRT time (9:00 AM–2:00 PM CST). That is roughly 5 hours of usable overlap.
  • Keeping family and friends in sync: knowing that 8:00 PM in São Paulo is 5:00 PM in Mexico City makes it easy to avoid calling at 3 AM.
  • Always state the zone abbreviation, not just the hour. "3:00 PM BRT" is unambiguous; "3 PM" across a -3h gap is not.
  • Block 12:00 PM–5:00 PM BRT as the recurring meeting window if you work primarily from São Paulo and need Mexico City colleagues present.

About BRT (Brasilia Time)

Brasilia Time (BRT) is the standard time in the most populous regions of Brazil, including São Paulo, Rio de Janeiro, and the capital Brasília. Brazil abolished daylight saving time in 2019, so BRT is now observed year-round in these regions. Brazil spans four time zones in total.

About CST (Central Standard Time)

Central Standard Time (CST) covers the central region of North America. It is the second most populous time zone in the US, including major cities like Chicago, Houston, and Dallas. CST is also used in Mexico City and much of Central America including Guatemala, Honduras, El Salvador, and Costa Rica. During summer, most of the US and Canada switch to Central Daylight Time (CDT, UTC-05:00), while Mexico and Central American countries generally remain on CST.

Best time to call between São Paulo and Mexico City

Both São Paulo and Mexico City sit inside the 9 AM – 5 PM working day between 12:00 PM–5:00 PM BRT, which is 9:00 AM–2:00 PM CST. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

São Paulo and Mexico City share 5 hours of working-hours overlap (12:00 PM–5:00 PM BRT), so scheduling a live meeting is straightforward.

São Paulo is 3 hours behind Mexico City (BRT UTC-03:00 → CST UTC-06:00). The shared working window is 12:00 PM–5:00 PM BRT. Remember to re-check around daylight-saving transitions.

Frequently Asked Questions

What is the time difference between São Paulo and Mexico City?

São Paulo (BRT, UTC-03:00) is 3 hours behind Mexico City (CST, UTC-06:00). The gap is currently -3h.

How do I convert São Paulo time to Mexico City time?

Add -3h to São Paulo local time. For example, 9:00 AM in São Paulo is 6:00 AM in Mexico City.

What time is it in Mexico City right now?

Mexico City uses CST at UTC-06:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -3h offset from São Paulo.

What is the best time to call Mexico City from São Paulo?

Call between 12:00 PM and 5:00 PM BRT — that maps to 9:00 AM–2:00 PM CST and keeps both parties inside the working day.

Which is behind, São Paulo or Mexico City?

São Paulo is 3 hours behind Mexico City. When it is 12:00 PM in São Paulo it is 9:00 AM in Mexico City.

Do São Paulo and Mexico City use different time zones?

São Paulo (Brazil) uses BRT at UTC-03:00, while Mexico City (Mexico) uses CST at UTC-06:00. The IANA identifiers are America/Sao_Paulo and America/Mexico_City.

Does daylight saving time affect the São Paulo–Mexico City difference?

Neither zone observes daylight saving time, so the -3h offset between São Paulo and Mexico City is fixed all year.

Which other cities share São Paulo's time zone?

BRT also covers São Paulo, Rio de Janeiro, Brasília, Belo Horizonte, Salvador, Fortaleza, Recife, Curitiba.

Which countries use BRT, São Paulo's zone?

BRT is used in Brazil (eastern).

Is there a day difference between São Paulo and Mexico City?

Not normally. The -3h gap only pushes the date over the previous day.

What is the time difference between São Paulo and Mexico City?

Mexico City is -3h from São Paulo.

What timezone is São Paulo in?

São Paulo operates on Brasília Time (BRT), UTC-3. As South America's largest financial center, São Paulo's B3 exchange is the Americas' second-largest.

What timezone is Mexico City in?

Mexico City operates on Central Time (CST/CDT), same as Chicago. As North America's largest city, Mexico City bridges US and Latin American business hours.

What are the business hours in São Paulo?

Standard business hours in São Paulo are 9:00 AM - 6:00 PM BRT.

What are the business hours in Mexico City?

Standard business hours in Mexico City are 9:00 AM - 6:00 PM CST.

What is the best time to schedule a call between São Paulo and Mexico City?

The best overlap for a call is when both cities are in business hours. São Paulo works 9:00 AM - 6:00 PM BRT and Mexico City works 9:00 AM - 6:00 PM CST (-3h difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in São Paulo and Mexico City?

São Paulo uses BRL (R$) while Mexico City uses MXN ($). Check current exchange rates when planning travel or business between these cities.

How do São Paulo and Mexico City compare in size?

São Paulo has a population of approximately 12.4 million (metro: 22.4 million), while Mexico City has approximately 9.2 million (metro: 21.8 million).

What are the major landmarks in São Paulo and Mexico City?

São Paulo is known for Paulista Avenue, Ibirapuera Park, São Paulo Cathedral. Mexico City is famous for Zócalo, Palacio de Bellas Artes, Chapultepec Castle.

Do São Paulo and Mexico City have stock exchanges?

Yes. São Paulo has the B3 (Brasil Bolsa Balcão) and Mexico City has the BMV (Bolsa Mexicana de Valores). The -3h time difference affects trading hour overlaps between these exchanges.

Which countries use BRT (Brasilia Time)?

BRT is used in Brazil (eastern).

Does BRT observe daylight saving time?

No, BRT does not observe daylight saving time and remains at UTC-03:00 year-round.

What are some interesting facts about BRT?

Brazil abolished daylight saving time in 2019. São Paulo is the largest city in the Southern Hemisphere.

Which cities are in the CST timezone?

Major cities in the CST timezone include Chicago, Houston, Dallas, San Antonio, Mexico City, Austin, Winnipeg, Memphis.

What is the UTC offset for CST?

Central Standard Time (CST) is at UTC-06:00. During daylight saving time, it shifts to CDT.

What should I know about the CST timezone?

CST covers 20 US states fully or partially. Chicago and Houston are the two largest cities in the Central Time Zone.

When is it midnight in São Paulo, what time is it in Mexico City?

When it is 12:00 AM (midnight) in São Paulo (BRT), it is -3h later in Mexico City (CST).