Mexico City to London
+7hMexico City
CSTSOURCELondon
BSTGreen rows indicate typical business hours (9 AM - 5 PM)
CST and BST on the World Map
The map below highlights the CST (Central Standard Time) and BST (Greenwich Mean 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.
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.
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 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.
Everything You Need to Know About Mexico City and London Time
Mexico City runs on Central Standard Time (CST) at UTC-06:00. London runs on British Summer Time (BST) at UTC+01:00, also currently on daylight saving time. That puts Mexico City 7 hours ahead of London — a difference of +7h at the current offsets.
In practice, when it is 9:00 AM in Mexico City it is 4:00 PM in London. Midnight in Mexico City is 7:00 AM in London.London observes daylight saving time while Mexico City does not, so the gap narrows or widens by an hour part of the year.
Mexico City to London time conversion table
| Mexico City (CST) | London (BST) | Day |
|---|---|---|
| 12:00 AM | 7:00 AM | same day |
| 6:00 AM | 1:00 PM | same day |
| 7:00 AM | 2:00 PM | same day |
| 8:00 AM | 3:00 PM | same day |
| 9:00 AM | 4:00 PM | same day |
| 12:00 PM | 7:00 PM | same day |
| 3:00 PM | 10:00 PM | same day |
| 5:00 PM | 12:00 AM | next day |
| 6:00 PM | 1:00 AM | next day |
| 9:00 PM | 4:00 AM | next day |
Why people convert Mexico City to London time
- Scheduling a call from Mexico City to London: a 10:00 AM start in Mexico City lands at 5:00 PM in London, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Mexico City and London are inside the 9-to-5 working day between 9:00 AM and 10:00 AM CST time (4:00 PM–5:00 PM BST). That is roughly 1 hours of usable overlap.
- Watching a live event or market open: Mexico City viewers need 4:00 PM in London to catch a 9:00 AM start there, and 5:00 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 +7h gap is not.
- Block 9:00 AM–10:00 AM CST as the recurring meeting window if you work primarily from Mexico City and need London colleagues present.
- London: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
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 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.
Best time to call between Mexico City and London
Both Mexico City and London sit inside the 9 AM – 5 PM working day between 9:00 AM–10:00 AM CST, which is 4:00 PM–5:00 PM BST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Mexico City and London overlap for only 60 minutes (9:00 AM–10:00 AM CST), so meetings have to be booked precisely.
Mexico City is 7 hours ahead of London (CST UTC-06:00 → BST UTC+01:00). The shared working window is 9:00 AM–10:00 AM CST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Mexico City
Does not observe DST
London
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
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 London?
Mexico City (CST, UTC-06:00) is 7 hours ahead of London (BST, UTC+01:00). The gap is currently +7h.
How do I convert Mexico City time to London time?
Add +7h to Mexico City local time. For example, 9:00 AM in Mexico City is 4:00 PM in London.
What time is it in London right now?
London uses BST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +7h offset from Mexico City.
What is the best time to call London from Mexico City?
Call between 9:00 AM and 10:00 AM CST — that maps to 4:00 PM–5:00 PM BST and keeps both parties inside the working day.
Which is ahead, Mexico City or London?
Mexico City is 7 hours ahead of London. When it is 12:00 PM in Mexico City it is 7:00 PM in London.
Do Mexico City and London use different time zones?
Mexico City (Mexico) uses CST at UTC-06:00, while London (UK) uses BST at UTC+01:00. The IANA identifiers are America/Mexico_City and Europe/London.
Does daylight saving time affect the Mexico City–London difference?
Yes at the moment: London is on daylight saving time and Mexico City is not, so the +7h gap shifts by an hour when exactly one of them changes clocks.
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 London?
Not normally. The +7h gap only pushes the date over for late-evening times.
What is the time difference between Mexico City and London?
London is +7h 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 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 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 London?
Standard business hours in London are 9:00 AM - 5:00 PM GMT.
What is the best time to schedule a call between Mexico City and London?
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 London works 9:00 AM - 5:00 PM GMT (+7h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Mexico City and London?
Mexico City uses MXN ($) while London uses GBP (£). Check current exchange rates when planning travel or business between these cities.
How do Mexico City and London compare in size?
Mexico City has a population of approximately 9.2 million (metro: 21.8 million), while London has approximately 8.8 million (metro: 14.8 million).
What are the major landmarks in Mexico City and London?
Mexico City is known for Zócalo, Palacio de Bellas Artes, Chapultepec Castle. London is famous for Big Ben, Tower Bridge, Buckingham Palace.
Do Mexico City and London have stock exchanges?
Yes. Mexico City has the BMV (Bolsa Mexicana de Valores) and London has the LSE (London Stock Exchange). The +7h 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 GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
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.
When is it midnight in Mexico City, what time is it in London?
When it is 12:00 AM (midnight) in Mexico City (CST), it is +7h later in London (GMT).
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