CET to London
+0hCET
CETSOURCELondon
BSTGreen rows indicate typical business hours (9 AM - 5 PM)
CET and BST on the World Map
The map below highlights the CET (Central European Time) and BST (Greenwich Mean Time) timezone regions across the globe.
CET – Central European Time
UTC+01:00Central European Time (CET) is used across most of Western and Central Europe, 1 hour ahead of UTC.
- •CET covers more European countries than any other time zone.
- •Spain uses CET despite being geographically aligned with GMT/WET.
- •The Frankfurt Stock Exchange, Euronext (Amsterdam/Paris), and Borsa Italiana operate on CET.
- •Over 500 million people live in the CET time zone.
- •France moved to CET during the German occupation in WWII and never switched back.
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 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.
CET vs London: Offsets, DST and Best Call Times
CET runs on Central European Time (CET) at UTC+01:00. London runs on British Summer Time (BST) at UTC+01:00, also currently on daylight saving time. That puts CET no time difference London — a difference of +0h at the current offsets.
In practice, when it is 9:00 AM in CET it is 9:00 AM in London. Midnight in CET is 12:00 AM in London.London observes daylight saving time while CET does not, so the gap narrows or widens by an hour part of the year.
CET to London time conversion table
| CET (CET) | London (BST) | Day |
|---|---|---|
| 12:00 AM | 12:00 AM | same day |
| 6:00 AM | 6:00 AM | same day |
| 7:00 AM | 7:00 AM | same day |
| 8:00 AM | 8:00 AM | same day |
| 9:00 AM | 9:00 AM | same day |
| 12:00 PM | 12:00 PM | same day |
| 3:00 PM | 3:00 PM | same day |
| 5:00 PM | 5:00 PM | same day |
| 6:00 PM | 6:00 PM | same day |
| 9:00 PM | 9:00 PM | same day |
Why people convert CET to London time
- Scheduling a call from CET to London: a 10:00 AM start in CET lands at 10:00 AM in London, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both CET and London are inside the 9-to-5 working day between 9:00 AM and 5:00 PM CET time (9:00 AM–5:00 PM BST). That is roughly 8 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in CET is 8:00 PM in London makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM CET" is unambiguous; "3 PM" across a +0h gap is not.
- Block 9:00 AM–5:00 PM CET as the recurring meeting window if you work primarily from CET 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 CET (Central European Time)
Central European Time (CET) is the standard time zone for most of Europe, covering over 30 countries from Spain to Poland, and from Norway to Italy. CET is 1 hour ahead of GMT and is used by the European Union's most populous nations. During summer, most CET countries switch to Central European Summer Time (CEST, UTC+02:00). Major European financial markets in Frankfurt, Paris, and Amsterdam operate on CET.
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 CET and London
Both CET and London sit inside the 9 AM – 5 PM working day between 9:00 AM–5:00 PM CET, which is 9:00 AM–5:00 PM BST. That gives roughly 8 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
CET and London share 8 hours of working-hours overlap (9:00 AM–5:00 PM CET), so scheduling a live meeting is straightforward.
CET is no time difference London (CET UTC+01:00 → BST UTC+01:00). The shared working window is 9:00 AM–5:00 PM CET. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
CET
☀ Currently in DST
Standard: UTC+01:00 · DST: UTC+02:00
Clocks fall back on Sun, Oct 25, 2026
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 CET and London?
CET (CET, UTC+01:00) is no time difference London (BST, UTC+01:00). The gap is currently +0h.
How do I convert CET time to London time?
Add +0h to CET local time. For example, 9:00 AM in CET is 9:00 AM 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 +0h offset from CET.
What is the best time to call London from CET?
Call between 9:00 AM and 5:00 PM CET — that maps to 9:00 AM–5:00 PM BST and keeps both parties inside the working day.
Which is ahead, CET or London?
CET and London are currently on the same clock.
Do CET and London use different time zones?
CET uses CET at UTC+01:00, while London (UK) uses BST at UTC+01:00. The IANA identifiers are Europe/Paris and Europe/London.
Does daylight saving time affect the CET–London difference?
Yes at the moment: London is on daylight saving time and CET is not, so the +0h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share CET's time zone?
CET also covers Paris, Berlin, Rome, Madrid, Amsterdam, Brussels, Vienna, Warsaw and 10 more.
Which countries use CET, CET's zone?
CET is used in Germany, France, Italy, Spain, Netherlands, Belgium, Austria, Switzerland and 19 more.
What is the time difference between CET and London?
London is +0h from CET.
What timezone is CET in?
CET operates on its local timezone.
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 London?
Standard business hours in London are 9:00 AM - 5:00 PM GMT.
Which countries use CET (Central European Time)?
CET is used in Germany, France, Italy, Spain, Netherlands, Belgium, and 21 more countries.
Does CET observe daylight saving time?
Yes, CET switches to CEST during summer months.
What are some interesting facts about CET?
CET covers more European countries than any other time zone. Spain uses CET despite being geographically aligned with GMT/WET.
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 CET, what time is it in London?
When it is 12:00 AM (midnight) in CET (CET), it is +0h later in London (GMT).
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