Andy Burnham will head to Buckingham Palace to request permission from His Majesty the King to form a government.
He will do so after a security briefing, and then at around 12:45 he will officially enter No10 for that famous photograph.
This is often an extremely famous moment in the lifetime of a premiership, and will mark his first address to the nation as Prime Minister.
Margaret Thatcher famously quoted St Francis of Assisi on her way into Number 10 saying: “Where there is despair, may we bring hope.”
He will then head inside and be given a tour of the historic building – this might also be a chance for him to lay out his new dress code plans as Mr Burnham intends not to wear a shirt and tie except for big occasions.
Once that’s done it’s off for a meeting with the Cabinet Secretary, the boss of the civil service to lay out his plans.
Then Mr Burnham will be shown the No10 bunker, and after that he takes phone calls from leaders across the world.
By mid afternoon we can expect a raft of Cabinet announcements as we begin to see what sort of shape this new government will take.
And by the end of the day Mr Burnham will need to write the ‘letters of last resort’ after a chat with the Chief of the Defence Staff – those are the letters telling commanders of Britain’s Vanguard class of nuclear-armed submarines what to do in the event of a strike.