GMT to CET Time Zone Converter
This converts London time (GMT in winter, BST in summer) to Central European Time, the clock used across much of mainland Europe. CET is one hour ahead of London, and because both sides follow the same daylight saving calendar, that one-hour gap holds steady all year. The tool applies the right offset for the date you choose.
Enter a date and time to convert.
Daylight saving is applied automatically for the date you pick. Labels like PST/EST name the zone (Pacific/Eastern); the real abbreviation shifts to PDT/EDT during daylight saving, and gmt here means London (GMT in winter, BST in summer) while utc stays fixed.
The time difference
Central European Time is 1 hour ahead of London, and it stays that way the whole year. Add one hour to the London clock to get CET. Because London and mainland Europe share the same daylight saving calendar — both spring forward and fall back on the same dates — the gap never drifts. This is one of the tidiest conversions there is.
A worked example
Take 9:00 AM in London. On January 15, 2026 (winter), that is 10:00 AM CET. On July 15, 2026 (summer), it's still 10:00 AM CEST — the same one-hour jump. Whatever the season, London plus one hour lands you on the Central European clock.
Daylight saving & the abbreviation caveat
"GMT" here means London's clock: GMT in winter, BST in summer. CET has two names too — CET in winter, CEST (Central European Summer Time) in summer. Both London and Central Europe switch on the same Sundays — forward on March 29 and back on October 25, 2026 — so they move in lockstep and the one-hour gap holds through the changeover. You don't have to track the names; the converter picks the right one for your date.
When you'll use it
Useful for scheduling calls with colleagues in Paris, Amsterdam, or Frankfurt, catching a European football kickoff, or planning a train connection on the continent. Since the offset never wavers, once you know "London plus one," you can do quick mental math any day of the year — but the tool confirms it exactly.
Frequently asked questions
How far ahead is CET from London?
One hour, all year round. When it's 12:00 noon in London it's 1:00 PM in Paris, Berlin, or Madrid, whether it's summer or winter.
Does the gap change in summer?
No. London and Central Europe start and end daylight saving on the same dates, so both clocks move together and the one-hour difference never changes.
What's the difference between CET and CEST?
CET is the winter name and CEST (Central European Summer Time) is the summer name. It's the same zone — just an hour further ahead in summer — and it stays one hour ahead of London either way.