Boris Johnson will be the UK's new Prime Minister following a landslide victory in the Tory leadership race.
The former London Mayor beat rival Jeremy Hunt by a clearer margin of 92,153 votes to 46,656.in the battle to succeed Theresa May.
The identity of the new prime minister was revealed around midday on Tuesday after a ballot of the Tory party's 160,000 members closed yesterday evening.
The outgoing Mrs May will take part in her final Prime Minister's Questions on Wednesday before she hands in her resignation to the Queen and recommends Mr Johnson as her successor.
Mr Johnson will now start drawing up his first Cabinet reshuffle after getting the traditional desk-thumping welcome from Conservative MPs.
Here’s the full timetable of when Boris Johnson will start as the new Prime Minister.
The result of the Conservative leadership contest was announced around lunchtime on Tuesday.
Party chairman Brandon Lewis made a short speech before Dame Cheryl Gillan and Charles Walker - returning officers of the 1922 Committee - made the announcement.
Mr Johnson, the new leader of the Conservative Party, made a speech after the announcement in which he declared it was not irreconcilable to remain close with the EU and to deliver Brexit, adding: "I think we know that we can do it and that the people of this country are trusting in us to do it and we know that we will do it."
Theresa May will take her final Prime Minister's Questions in the Commons before formally resigning as PM.
She is expected to return to Downing Street after her last stint at the despatch box to have lunch and address Number 10 staff.
Mrs May will then make a short statement to media waiting in the street outside the famous black door before heading to Buckingham Palace to offer her resignation to the Queen.
The monarch will then meet the new leader of the Tory party at the Palace and invite him to form a new government.
Traditionally, the new prime minister makes a statement in Downing Street before stepping into Number 10 for the first time as PM.
Mr Johnson will likely spend his first full day in office finalising his Government - with appointments to the Cabinet and ministerial team expected.
The Commons will rise for the summer recess, with MPs not due to return until September 3.
The Cabinet reshuffle could continue into Friday, with Mr Johnson finalising his team ahead of the summer.
He may also make his first official visit as PM to one of the four regions of the UK - like Mrs May's trip to Scotland on her second day in office - or perhaps head to Brussels to in a bid to reopen Brexit negotiations.