Most European countries follow EU directives for time-keeping
There are three different time zones across the EU:
EU members: Ireland, Portugal
Austria, Belgium, Croatia, Czech Republic, Germany, Denmark, Spain, France, Hungary, Italy, Luxembourg, Malta, The Netherlands, Poland, Slovakia, Slovenia, Sweden
Non-EU: Norway, Switzerland
Cyprus, Estonia, Finland, Greece, Latvia, Lithuania, Bulgaria, Romania
Non-EU: Moldova, Ukraine
The European Union and its member states are currently reviewing the clock change regime, following a proposal by the European Commission.
UK is no longer a EU member and has not yet announced any changes in its Daylight Saving Time timetable.