Prime Minister Boris Johnson said Britain would leave the European Union on Jan. 31 after his sweeping election win.
"We will get Brexit done on time by the 31st of January, no ifs, no buts, no maybes," Johnson told cheering supporters on Friday.
Earlier, EU Commissioner for internal markets Thierry Breton said Britain's post-Brexit phase will start on Feb. 1 as there is now little doubt its parliament will accept Prime Minister Boris Johnson's deal on withdrawing from the European Union.
"Boris Johnson will have a large majority... It seems logical to consider that (Johnson's Brexit deal with the EU) will be accepted by parliament, and therefore withdrawal on Jan 31, which means we will be in the post-Brexit phase from Feb. 1," Breton, a Frenchman, said on French radio RTL.
"The Brexit negotiations are over now. We are now entering a phase of trade talks between Britain and the EU."
UK election: Prime Minister Boris Johnson retains seatBritish Prime Minister Boris Johnson said on Friday that his government appeared to have won a powerful new mandate to get Brexit done. "At this ... World News
Veteran UK Labour lawmaker Dennis Skinner loses to ConservativesVeteran Labour lawmaker Dennis Skinner lost the seat he had held since 1970 on Friday, as another brick in the "Red Wall" of traditional ... World News
UK PM Johnson's Conservatives have won a majorityBritish Prime Minister Boris Johnson's Conservatives have won an outright majority in parliament, according to a tally of seats won so far by ... World News