The Prime Minister is calling for a general election on December 12.
Boris Johnson has insisted he will give MPs more time to debate his Brexit deal - until November 6 - if they back his election plans in a vote on Monday next week.
It comes amid signs the EU is set to grant a Brexit extension until the end of January, after Mr Johnson was forced - under the terms of the so-called Benn Act - to request it.
The EU are set to announce their decision tomorrow.
However, Mr Johnson has been clear he does not want the extension to be granted, but would accept a short extension to the "15 or 30 November".
Mr Johnson outlined his plans in a letter to Jeremy Corbyn, writing that he wanted to end the Brexit "nightmare".
He pledged that as much time as possible would be dedicated to debating the Bill "including Fridays, weekends, the earliest starts and the latest finishes".
"This means that we could get Brexit done before the election on 12 December if MPs choose to do so," he wrote.
But he added that if Parliament fails to back his plans and pass the Brexit Bill by November 6, Brexit "will have to be resolved by a new Parliament and government".
In the Commons this evening, Labour's Valerie Vaz insisted that her party would not back an election until a no-deal Brexit was ruled out.