Mexico City to Buenos Aires
+3hMexico City
CSTSOURCEBuenos Aires
ARTGreen rows indicate typical business hours (9 AM - 5 PM)
CST and ART on the World Map
The map below highlights the CST (Central Standard Time) and ART (Argentina 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.
ART – Argentina Time
UTC-03:00Argentina Time (ART) is the standard time for Argentina, 3 hours behind UTC.
- •Argentina does not observe daylight saving time.
- •Buenos Aires is one of the most visited cities in South America.
- •ART is the same offset as BRT (UTC-03:00).
About Mexico City
WikipediaMexico 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.
Mexico City is the oldest capital city in the Americas.
About Buenos Aires
WikipediaBuenos Aires operates on Argentina Time (ART), UTC-3. As South America's most European city, Buenos Aires coordinates with Brazilian markets in the same timezone.
The Teatro Colón is considered one of the best opera houses in the world for acoustics.
Understanding the +3h Gap: Mexico City vs Buenos Aires
Mexico City runs on Central Standard Time (CST) at UTC-06:00. Buenos Aires runs on Argentina Standard Time (ART) at UTC-03:00. That puts Mexico City 3 hours ahead of Buenos Aires — a difference of +3h at the current offsets.
In practice, when it is 9:00 AM in Mexico City it is 12:00 PM in Buenos Aires. Midnight in Mexico City is 3:00 AM in Buenos Aires. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Mexico City to Buenos Aires time conversion table
| Mexico City (CST) | Buenos Aires (ART) | 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 City to Buenos Aires time
- Scheduling a call from Mexico City to Buenos Aires: a 10:00 AM start in Mexico City lands at 1:00 PM in Buenos Aires, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Mexico City and Buenos Aires are inside the 9-to-5 working day between 9:00 AM and 2:00 PM CST time (12:00 PM–5:00 PM ART). That is roughly 5 hours of usable overlap.
- Watching a live event or market open: Mexico City viewers need 12:00 PM in Buenos Aires to catch a 9:00 AM start there, and 9:00 PM if the event is anchored to Mexico City.
- 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 City and need Buenos Aires 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 ART (Argentina Time)
Argentina Time (ART) is the time zone used throughout Argentina. Argentina does not observe daylight saving time. ART shares the same offset as Brasilia Time (BRT) and Uruguay's UYT.
Best time to call between Mexico City and Buenos Aires
Both Mexico City and Buenos Aires 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 ART. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Mexico City and Buenos Aires share 5 hours of working-hours overlap (9:00 AM–2:00 PM CST), so scheduling a live meeting is straightforward.
Mexico City is 3 hours ahead of Buenos Aires (CST UTC-06:00 → ART 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 City and Buenos Aires?
Mexico City (CST, UTC-06:00) is 3 hours ahead of Buenos Aires (ART, UTC-03:00). The gap is currently +3h.
How do I convert Mexico City time to Buenos Aires time?
Add +3h to Mexico City local time. For example, 9:00 AM in Mexico City is 12:00 PM in Buenos Aires.
What time is it in Buenos Aires right now?
Buenos Aires uses ART 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 City.
What is the best time to call Buenos Aires from Mexico City?
Call between 9:00 AM and 2:00 PM CST — that maps to 12:00 PM–5:00 PM ART and keeps both parties inside the working day.
Which is ahead, Mexico City or Buenos Aires?
Mexico City is 3 hours ahead of Buenos Aires. When it is 12:00 PM in Mexico City it is 3:00 PM in Buenos Aires.
Do Mexico City and Buenos Aires use different time zones?
Mexico City (Mexico) uses CST at UTC-06:00, while Buenos Aires (Argentina) uses ART at UTC-03:00. The IANA identifiers are America/Mexico_City and America/Buenos_Aires.
Does daylight saving time affect the Mexico City–Buenos Aires difference?
Neither zone observes daylight saving time, so the +3h offset between Mexico City and Buenos Aires is fixed all year.
Which other cities share Mexico City's time zone?
CST also covers Chicago, Houston, Dallas, San Antonio, Mexico City, Austin, Winnipeg, Memphis and 6 more.
Which countries use CST, Mexico City'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 City and Buenos Aires?
Not normally. The +3h gap only pushes the date over for late-evening times.
What is the time difference between Mexico City and Buenos Aires?
Buenos Aires is +3h from Mexico City.
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 timezone is Buenos Aires in?
Buenos Aires operates on Argentina Time (ART), UTC-3. As South America's most European city, Buenos Aires coordinates with Brazilian markets in the same timezone.
What are the business hours in Mexico City?
Standard business hours in Mexico City are 9:00 AM - 6:00 PM CST.
What are the business hours in Buenos Aires?
Standard business hours in Buenos Aires are 9:00 AM - 6:00 PM ART.
What is the best time to schedule a call between Mexico City and Buenos Aires?
The best overlap for a call is when both cities are in business hours. Mexico City works 9:00 AM - 6:00 PM CST and Buenos Aires works 9:00 AM - 6:00 PM ART (+3h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Mexico City and Buenos Aires?
Mexico City uses MXN ($) while Buenos Aires uses ARS ($). Check current exchange rates when planning travel or business between these cities.
How do Mexico City and Buenos Aires compare in size?
Mexico City has a population of approximately 9.2 million (metro: 21.8 million), while Buenos Aires has approximately 3 million (metro: 15.4 million).
What are the major landmarks in Mexico City and Buenos Aires?
Mexico City is known for Zócalo, Palacio de Bellas Artes, Chapultepec Castle. Buenos Aires is famous for Casa Rosada, Teatro Colón, La Boca.
Do Mexico City and Buenos Aires have stock exchanges?
Yes. Mexico City has the BMV (Bolsa Mexicana de Valores) and Buenos Aires has the BCBA (Buenos Aires Stock Exchange). The +3h time difference affects trading hour overlaps between these exchanges.
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 ART timezone?
Major cities in the ART timezone include Buenos Aires, Córdoba, Rosario, Mendoza, La Plata, Tucumán.
What is the UTC offset for ART?
Argentina Time (ART) is at UTC-03:00.
What should I know about the ART timezone?
Argentina does not observe daylight saving time. Buenos Aires is one of the most visited cities in South America.
When is it midnight in Mexico City, what time is it in Buenos Aires?
When it is 12:00 AM (midnight) in Mexico City (CST), it is +3h later in Buenos Aires (ART).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Mexico City time conversions
- mexico city to mexico
- mexico city to new york
- mexico city to los angeles
- mexico city to chicago
- mexico city to denver
- mexico city to toronto
- mexico city to vancouver
- mexico city to sao paulo
- mexico city to bogota
- mexico city to lima
- mexico city to santiago
- mexico city to anchorage
- mexico city to london
- mexico city to dubai
- mexico city to tokyo
- mexico city to singapore
- mexico city to sydney
- mexico city to paris
- mexico city to delhi
- mexico city to mumbai
- mexico city to berlin
- mexico city to hong kong
- mexico city to kathmandu
- new york to mexico city
- london to mexico city
- dubai to mexico city
- tokyo to mexico city
- singapore to mexico city
- sydney to mexico city
- los angeles to mexico city
- paris to mexico city
- delhi to mexico city
- mumbai to mexico city
- berlin to mexico city
- hong kong to mexico city
See every conversion from Mexico City →·See every conversion from Buenos Aires →