London to Mexico City
-6hLondon
GMTSOURCEMexico City
CSTGreen rows indicate typical business hours (9 AM - 5 PM)
GMT and CST on the World Map
The map below highlights the GMT (Greenwich Mean Time) and CST (Central Standard Time) timezone regions across the globe.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
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.
About London
WikipediaLondon, where Greenwich Mean Time (GMT) originates, is the world's leading financial center alongside New York. The city bridges European and American business hours.
Big Ben is actually the name of the bell inside the Elizabeth Tower, not the tower itself.
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.
Comparing Time Zones: London and Mexico City
London, UK operates on the Greenwich Mean Time (UTC+00:00). Mexico City, Mexico uses Central Standard Time (UTC-06:00).
The time difference between London and Mexico City is 360 minutes (+6h). When it's noon in London, it's 06:00 AM in Mexico City.
Why Convert London to Mexico City Time?
The time difference of 6 hours between London and Mexico City can significantly impact business operations and personal communication. By using this converter, you can easily find the overlapping business hours and schedule your interactions when both parties are available.
Pro Tip: If you frequently communicate with people in Mexico City from London, consider adding a dual-clock widget to your phone or computer to keep track of the 6-hour difference at a glance.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
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 London and Mexico City
If you want to reach someone in Mexico City during standard business hours (9 AM – 5 PM CST), the best time to call from London would be:
- Mexico City 9:00 AM = London 03:00 PM
- Mexico City 12:00 PM = London 06:00 PM
- Mexico City 5:00 PM = London 11:00 PM
Business Hours Overlap
London and Mexico City have a partial business hours overlap. The best window for meetings and calls is when both locations are in their working hours.
In conclusion, the -6h time shift from London to Mexico City doesn't have to be a hurdle. With our interactive converter, you can easily find the perfect time to connect.
🕐 Daylight Saving Time Info
London
❄ Currently in Standard Time
Standard: UTC+00:00 · DST: UTC+01:00
Clocks spring forward on Sun, Mar 29, 2026
Mexico City
Does not observe DST
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 London and Mexico City?
Mexico City is -6h from London.
What timezone is London in?
London, where Greenwich Mean Time (GMT) originates, is the world's leading financial center alongside New York. The city bridges European and American business hours.
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 London?
Standard business hours in London are 9:00 AM - 5:00 PM GMT.
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 London and Mexico City?
The best overlap for a call is when both cities are in business hours. London works 9:00 AM - 5:00 PM GMT and Mexico City works 9:00 AM - 6:00 PM CST (-6h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in London and Mexico City?
London uses GBP (£) while Mexico City uses MXN ($). Check current exchange rates when planning travel or business between these cities.
How do London and Mexico City compare in size?
London has a population of approximately 8.8 million (metro: 14.8 million), while Mexico City has approximately 9.2 million (metro: 21.8 million).
What are the major landmarks in London and Mexico City?
London is known for Big Ben, Tower Bridge, Buckingham Palace. Mexico City is famous for Zócalo, Palacio de Bellas Artes, Chapultepec Castle.
Do London and Mexico City have stock exchanges?
Yes. London has the LSE (London Stock Exchange) and Mexico City has the BMV (Bolsa Mexicana de Valores). The -6h time difference affects trading hour overlaps between these exchanges.
Which countries use GMT (Greenwich Mean Time)?
GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, and 9 more countries.
Does GMT observe daylight saving time?
Yes, GMT switches to BST during summer months.
What are some interesting facts about GMT?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
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 London, what time is it in Mexico City?
When it is 12:00 AM (midnight) in London (GMT), it is -6h later in Mexico City (CST).
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