Convert Central European Time to GMT / UK time. Central Europe is always 1 hour ahead.
Home row (top) sets the day. DST handled automatically via Intl.
Working hours (9–17)DaytimeNightNowSelected
CET to GMT — Central Europe to London time
Central European Time (CET/CEST) and UK time (GMT/BST) change for daylight saving on the same dates, so Central Europe is always 1 hour ahead of the UK — year-round.
Period
Difference
All year
Central Europe is 1 hour ahead of the UK
The UK and Central Europe overlap almost entirely: 9 AM in London is 10 AM in Paris, so the whole workday aligns.
Frequently asked questions
What is the time difference between CET and GMT?
Central European Time is always 1 hour ahead of UK time. When it is 9:00 AM in London, it is 10:00 AM in Paris. The gap is constant because the UK and EU switch daylight saving on the same dates.
What time is 12 noon GMT in CET?
12:00 noon in London is 1:00 PM in Central Europe.
Do CET and GMT change together?
Yes. Both the UK and Central Europe move their clocks on the last Sundays of March and October, so the 1-hour difference never changes.