<sod >The European Commission has said the transition, during which the UK would be bound by EU rules despite being outside the bloc,Â should end on 31 December 2020, but UK negotiators said on Wednesday that they want to discuss the possibility of a longer duration.< eod>< sod > The European Commission has said the transition, during which the UK would be bound by EU rules despite being outside the bloc,Â should end on 31 December 2020, but UK negotiators said on Wednesday that they want to discuss the possibility of a differentÂ duration â amid concern that there may not be enough time to prepare for Brexit.< eod>