Our free CET to GMT converter instantly translates Central European Time into UK London time — the Paris-or-Berlin to London conversion that covers most of mainland Europe versus the UK. The gap is a steady one hour, and this tool keeps the seasonal naming straight for you.
Central Europe runs one hour ahead of the UK throughout the year: (Offsets follow the IANA Time Zone Database.)
Central European Time is 1 hour ahead of UK time year-round, because both shift to daylight time on the same dates. So 12:00 PM CET is 11:00 AM in London.
No. The EU and UK change clocks together, so the difference is always 1 hour — CET↔GMT in winter and CEST↔BST in summer.
12:00 PM CET is 11:00 AM in London. Because the gap is just an hour, scheduling between mainland Europe and the UK is straightforward.
GMT is 1 hour behind CET year-round. 100% free, no registration, and fully private — every conversion happens in your browser.
Uses the IANA database for Europe/Paris and Europe/London, so daylight saving is applied automatically — no manual offset math.
Convert CET to GMT the moment you pick a time. No signup, no ads in your way, nothing to install.
Find the Paris ↔ London overlap fast — both cities are in business hours roughly 10:00 AM–5:00 PM CET.
Every conversion runs locally in your browser using your device clock. Your dates and times never touch a server.
Reverse conversion
From Central European Time
From Central European Time
To Greenwich Mean Time
To Greenwich Mean Time
To Greenwich Mean Time
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