Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

BST to Mexico City

-7h

BST

BSTSOURCE

UTC+01:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Mexico City

CST

Mexico · UTC-06:00

HH05

MM00

05:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

BST

Mexico City

12:00 AM

5:00 PM-1

2:00 AM

7:00 PM-1

4:00 AM

9:00 PM-1

6:00 AM

11:00 PM-1

8:00 AM

1:00 AM

10:00 AM

3:00 AM

12:00 PM

5:00 AM

2:00 PM

7:00 AM

4:00 PM

9:00 AM

6:00 PM

11:00 AM

8:00 PM

1:00 PM

10:00 PM

3:00 PM

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

BST and CST on the World Map

The map below highlights the BST (British Summer Time) and CST (Central Standard Time) timezone regions across the globe.

BST Zone

→

CST Zone

Explore all world timezones interactively →

BST – British Summer Time

UTC+01:00

British Summer Time (BST, UTC+01:00) is the daylight saving period in the United Kingdom, running from late March to late October.

Countries in BST

United Kingdom

Major Cities in BST

LondonBirminghamManchesterGlasgowEdinburghCardiffBelfastLiverpoolBristolLeeds

Key Facts about BST

•BST runs from the last Sunday in March to the last Sunday in October.
•BST is exactly one hour ahead of GMT, the UK's standard time.
•During BST, London is 4 hours ahead of New York while the US is on Eastern Daylight Time.
•The Isle of Man and the Channel Islands also observe BST.

Daylight Saving:Yes – switches to BST

Learn more about BST 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 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 →

BST vs Mexico City: Offsets, DST and Best Call Times

BST runs on British Summer Time (BST) at UTC+01:00. Mexico City runs on Central Standard Time (CST) at UTC-06:00. That puts BST 7 hours behind Mexico City — a difference of -7h at the current offsets.

In practice, when it is 9:00 AM in BST it is 2:00 AM in Mexico City. Midnight in BST is 5:00 PM in Mexico City. Neither zone observes daylight saving time, so the offset between them stays constant all year.

BST to Mexico City time conversion table

BST (BST)	Mexico City (CST)	Day
12:00 AM	5:00 PM	previous day
6:00 AM	11:00 PM	previous day
7:00 AM	12:00 AM	same day
8:00 AM	1:00 AM	same day
9:00 AM	2:00 AM	same day
12:00 PM	5:00 AM	same day
3:00 PM	8:00 AM	same day
5:00 PM	10:00 AM	same day
6:00 PM	11:00 AM	same day
9:00 PM	2:00 PM	same day

Why people convert BST to Mexico City time

Scheduling a call from BST to Mexico City: a 10:00 AM start in BST lands at 3:00 AM in Mexico City, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both BST and Mexico City are inside the 9-to-5 working day between 4:00 PM and 5:00 PM BST time (9:00 AM–10:00 AM CST). That is roughly 1 hours of usable overlap.
Coordinating a BST-based team with Mexico City contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.

Always state the zone abbreviation, not just the hour. "3:00 PM BST" is unambiguous; "3 PM" across a -7h gap is not.
Block 4:00 PM–5:00 PM BST as the recurring meeting window if you work primarily from BST and need Mexico City colleagues present.

About BST (British Summer Time)

British Summer Time (BST) is the daylight saving period in the United Kingdom, when clocks move one hour forward from Greenwich Mean Time (GMT, UTC+00:00) to UTC+01:00. It runs from the last Sunday in March to the last Sunday in October. England, Scotland, Wales and Northern Ireland all follow it, along with the Isle of Man and the Channel Islands of Jersey and Guernsey. During BST, London is one hour ahead of UTC, four hours ahead of New York on Eastern Daylight Time, and five hours ahead of New York once the United States returns to Eastern Standard Time in November. BST is also used to abbreviate Bangladesh Standard Time (UTC+06:00), which is listed separately on this site.

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 BST and Mexico City

Both BST and Mexico City sit inside the 9 AM – 5 PM working day between 4:00 PM–5:00 PM BST, which is 9:00 AM–10:00 AM CST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

BST and Mexico City overlap for only 60 minutes (4:00 PM–5:00 PM BST), so meetings have to be booked precisely.

BST is 7 hours behind Mexico City (BST UTC+01:00 → CST UTC-06:00). The shared working window is 4:00 PM–5:00 PM BST. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

BST

☀ Currently in DST

Standard: UTC+00:00 · DST: UTC+01:00

Clocks fall back on Sun, Oct 25, 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:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between BST and Mexico City?

BST (BST, UTC+01:00) is 7 hours behind Mexico City (CST, UTC-06:00). The gap is currently -7h.

How do I convert BST time to Mexico City time?

Add -7h to BST local time. For example, 9:00 AM in BST is 2:00 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 -7h offset from BST.

What is the best time to call Mexico City from BST?

Call between 4:00 PM and 5:00 PM BST — that maps to 9:00 AM–10:00 AM CST and keeps both parties inside the working day.

Which is behind, BST or Mexico City?

BST is 7 hours behind Mexico City. When it is 12:00 PM in BST it is 5:00 AM in Mexico City.

Do BST and Mexico City use different time zones?

BST uses BST at UTC+01:00, while Mexico City (Mexico) uses CST at UTC-06:00. The IANA identifiers are Europe/London and America/Mexico_City.

Does daylight saving time affect the BST–Mexico City difference?

Neither zone observes daylight saving time, so the -7h offset between BST and Mexico City is fixed all year.

Which other cities share BST's time zone?

BST also covers London, Birmingham, Manchester, Glasgow, Edinburgh, Cardiff, Belfast, Liverpool and 2 more.

Which countries use BST, BST's zone?

BST is used in United Kingdom.

Is there a day difference between BST and Mexico City?

Not normally. The -7h gap only pushes the date over the previous day.

What is the time difference between BST and Mexico City?

Mexico City is -7h from BST.

What timezone is BST in?

BST operates on its local timezone.

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.