Mexico to Brazil
+3hMexico
CSTSOURCEBrazil
BRTGreen rows indicate typical business hours (9 AM - 5 PM)
CST and BRT on the World Map
The map below highlights the CST (Central Standard Time) and BRT (Brasilia Time) timezone regions across the globe.
CST – Central Standard Time
UTC-06:00Central Standard Time (CST) is the time zone for the central United States, Canada, and Mexico, 6 hours behind UTC.
- •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.
BRT – Brasilia Time
UTC-03:00Brasilia Time (BRT) is the time zone for eastern Brazil, 3 hours behind UTC.
- •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.
Comparing Time Zones: Mexico and Brazil
Mexico runs on Central Standard Time (CST) at UTC-06:00. Brazil runs on Brasilia Standard Time (BRT) at UTC-03:00. That puts Mexico 3 hours ahead of Brazil — a difference of +3h at the current offsets.
In practice, when it is 9:00 AM in Mexico it is 12:00 PM in Brazil. Midnight in Mexico is 3:00 AM in Brazil. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Mexico to Brazil time conversion table
| Mexico (CST) | Brazil (BRT) | Day |
|---|---|---|
| 12:00 AM | 3:00 AM | same day |
| 6:00 AM | 9:00 AM | same day |
| 7:00 AM | 10:00 AM | same day |
| 8:00 AM | 11:00 AM | same day |
| 9:00 AM | 12:00 PM | same day |
| 12:00 PM | 3:00 PM | same day |
| 3:00 PM | 6:00 PM | same day |
| 5:00 PM | 8:00 PM | same day |
| 6:00 PM | 9:00 PM | same day |
| 9:00 PM | 12:00 AM | next day |
Why people convert Mexico to Brazil time
- Scheduling a call from Mexico to Brazil: a 10:00 AM start in Mexico lands at 1:00 PM in Brazil, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Mexico and Brazil are inside the 9-to-5 working day between 9:00 AM and 2:00 PM CST time (12:00 PM–5:00 PM BRT). That is roughly 5 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Mexico is 11:00 PM in Brazil makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM CST" is unambiguous; "3 PM" across a +3h gap is not.
- Block 9:00 AM–2:00 PM CST as the recurring meeting window if you work primarily from Mexico and need Brazil colleagues present.
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.
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.
Best time to call between Mexico and Brazil
Both Mexico and Brazil sit inside the 9 AM – 5 PM working day between 9:00 AM–2:00 PM CST, which is 12:00 PM–5:00 PM BRT. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Mexico and Brazil share 5 hours of working-hours overlap (9:00 AM–2:00 PM CST), so scheduling a live meeting is straightforward.
Mexico is 3 hours ahead of Brazil (CST UTC-06:00 → BRT UTC-03:00). The shared working window is 9:00 AM–2:00 PM CST. Remember to re-check around daylight-saving transitions.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Mexico and Brazil?
Mexico (CST, UTC-06:00) is 3 hours ahead of Brazil (BRT, UTC-03:00). The gap is currently +3h.
How do I convert Mexico time to Brazil time?
Add +3h to Mexico local time. For example, 9:00 AM in Mexico is 12:00 PM in Brazil.
What time is it in Brazil right now?
Brazil uses BRT at UTC-03:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +3h offset from Mexico.
What is the best time to call Brazil from Mexico?
Call between 9:00 AM and 2:00 PM CST — that maps to 12:00 PM–5:00 PM BRT and keeps both parties inside the working day.
Which is ahead, Mexico or Brazil?
Mexico is 3 hours ahead of Brazil. When it is 12:00 PM in Mexico it is 3:00 PM in Brazil.
Do Mexico and Brazil use different time zones?
Mexico (Mexico) uses CST at UTC-06:00, while Brazil (Brazil) uses BRT at UTC-03:00. The IANA identifiers are America/Mexico_City and America/Sao_Paulo.
Does daylight saving time affect the Mexico–Brazil difference?
Neither zone observes daylight saving time, so the +3h offset between Mexico and Brazil is fixed all year.
Which other cities share Mexico's time zone?
CST also covers Chicago, Houston, Dallas, San Antonio, Mexico City, Austin, Winnipeg, Memphis and 6 more.
Which countries use CST, Mexico's zone?
CST is used in United States (Central), Canada (Manitoba, Saskatchewan), Mexico, Guatemala, Honduras, El Salvador, Costa Rica, Nicaragua and 1 more.
Is there a day difference between Mexico and Brazil?
Not normally. The +3h gap only pushes the date over for late-evening times.
What is the time difference between Mexico and Brazil?
Brazil is +3h from Mexico.
What timezone is Mexico in?
Mexico operates on its local timezone.
What timezone is Brazil in?
Brazil operates on its local timezone.
Which countries use CST (Central Standard Time)?
CST is used in United States (Central), Canada (Manitoba, Saskatchewan), Mexico, Guatemala, Honduras, El Salvador, and 3 more countries.
Does CST observe daylight saving time?
Yes, CST switches to CDT during summer months.
What are some interesting facts about CST?
CST covers 20 US states fully or partially. Chicago and Houston are the two largest cities in the Central Time Zone.
Which cities are in the BRT timezone?
Major cities in the BRT timezone include São Paulo, Rio de Janeiro, Brasília, Belo Horizonte, Salvador, Fortaleza, Recife, Curitiba.
What is the UTC offset for BRT?
Brasilia Time (BRT) is at UTC-03:00.
What should I know about the BRT timezone?
Brazil abolished daylight saving time in 2019. São Paulo is the largest city in the Southern Hemisphere.
When is it midnight in Mexico, what time is it in Brazil?
When it is 12:00 AM (midnight) in Mexico (CST), it is +3h later in Brazil (BRT).
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