A draft European Council document says the UK could be offered a Brexit delay to May 22, on the condition Members of Parliament approve the Prime Minister’s deal next week.
EU leaders are still in discussions in Brussels over the UK’s request to postpone the March 29, exit date by three months.
However, there have been reports that an extension could be offered until May 7, only.
The draft document says no extension is possible beyond the European elections.
In Brussels, Prime Minister Theresa May spoke to leaders to try to get their backing for a delay, after Members of Parliament twice rejected the withdrawal deal she has negotiated with the European Union.
She has told European Council President Donald Tusk that she needs more time to get her deal agreed by MPs and passed into law.
Reports say Mrs May had spoken to EU leaders for 90 minutes and was asked several times what her contingency plans were if she lost the third “meaningful vote” on her deal in Parliament.