<P> In a referendum on 23 June 2016 , 51.9 % of the participating UK electorate voted to leave the EU , out of a turnout of 72.2 % . On 29 March 2017 , the UK government invoked Article 50 of the Treaty on the European Union . The UK is thus due to leave the EU at midnight on 30 March 2019 Central European Time ( 11 pm on 29 March 2019 GMT ) . </P>
when did we decide to leave the eu
23 June 2016