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BlogHow it works

GMT to CET Converter

Pick a date and a GMT time to get the time in Central Europe. The converter applies CEST from the last Sunday in March to the last Sunday in October.

Greenwich Mean Time

GMTGreenwich Mean Time

CETCentral European Time

––:––

What is the time difference between GMT and CET?

Central European Time is 1 hour ahead of GMT in winter and 2 hours ahead in summer (CEST). Add that to a GMT time to get the time in Paris or Berlin.

GMT
UTC+0, fixed
CET
UTC+1, winter
CEST
UTC+2, summer

GMT hours in Central Europe

GMT timeGMT · CETGMT · CEST
12:00 AM1:00 AM2:00 AM
1:00 AM2:00 AM3:00 AM
2:00 AM3:00 AM4:00 AM
3:00 AM4:00 AM5:00 AM
4:00 AM5:00 AM6:00 AM
5:00 AM6:00 AM7:00 AM
6:00 AM7:00 AM8:00 AM
7:00 AM8:00 AM9:00 AM
8:00 AM9:00 AM10:00 AM
9:00 AM10:00 AM11:00 AM
10:00 AM11:00 AM12:00 PM
11:00 AM12:00 PM1:00 PM
12:00 PM1:00 PM2:00 PM
1:00 PM2:00 PM3:00 PM
2:00 PM3:00 PM4:00 PM
3:00 PM4:00 PM5:00 PM
4:00 PM5:00 PM6:00 PM
5:00 PM6:00 PM7:00 PM
6:00 PM7:00 PM8:00 PM
7:00 PM8:00 PM9:00 PM
8:00 PM9:00 PM10:00 PM
9:00 PM10:00 PM11:00 PM
10:00 PM11:00 PM12:00 AM+1 next day
11:00 PM12:00 AM+1 next day1:00 AM+1 next day
Each GMT hour with the Central European time under CET and CEST. +1 marks the next day.

One rule for every EU country

The whole EU changes clocks at the same moment: 01:00 UTC on the last Sunday of March and of October, under Directive 2000/84/EC. That is why Paris, Berlin, Warsaw and Stockholm never drift apart, and why the UK, which applies the same dates, stays exactly one hour behind them.

Against fixed GMT the effect is simple: one hour in winter, two in summer. Against London time it is one hour all year, because London's own clock moves to BST on the same night.

  1. Jan 1, 2026 – Mar 29, 2026GMT UTC+0 · CET UTC+1Difference: +1 h
  2. Mar 29, 2026 – Oct 25, 2026GMT UTC+0 · CEST UTC+2Difference: +2 h
  3. Oct 25, 2026 – Mar 28, 2027GMT UTC+0 · CET UTC+1Difference: +1 h
  4. Mar 28, 2027 – Oct 31, 2027GMT UTC+0 · CEST UTC+2Difference: +2 h
  5. Oct 31, 2027 – Dec 31, 2027GMT UTC+0 · CET UTC+1Difference: +1 h

Offsets in 2026 – 2027, from the IANA time zone data in your browser's engine

Trips, matches and transfers

For travel, the clock you need is usually the local one at each end. A flight that leaves London at 07:00 local and takes about 1 h 30 min to Geneva lands around 09:30 local time, because the Swiss clock is one hour ahead. Rail tickets on the Eurostar list the departure in UK time and the arrival in Paris or Brussels time, so the trip looks an hour longer than it is.

European football matches scheduled for 21:00 in Central Europe kick off at 20:00 in the UK. In fixed GMT terms that is 20:00 in winter and 19:00 in summer.

GMT to CET questions

How many hours ahead of GMT is CET?

One hour in winter. From the last Sunday in March to the last Sunday in October, Central Europe is on CEST, two hours ahead of GMT.

What is 14:00 GMT in Paris?

15:00 in winter and 16:00 in summer.

Is the UK one hour behind Europe all year?

Yes. UK and EU clocks change at the same instant, so London is always one hour behind Paris. Only fixed GMT, used on this page, is two hours behind in summer.

Has the EU stopped changing its clocks?

No. The European Parliament voted in 2019 to end seasonal clock changes, but the member states have not agreed, so the switch still happens every March and October.