7.30am: Boris Johnson makes his farewell speech on the steps of No 10. He then departs Downing Street for the last time and flies to Aberdeen Airport.
Early morning: Mrs Truss, as Mr Johnson’s successor, flies up to Aberdeen in a separate plane in readiness to meet the Queen.
Late morning: Mr Johnson arrives at Balmoral, where the Queen is staying. He will be ushered into the Drawing Room, where for the first time in history a Prime Minister will step down from the role.
Early afternoon: After Mr Johnson leaves, Ms Truss will arrive at Balmoral, where she will be invited to see the Queen and be invited to form the next government.
2.00pm: Mrs Truss returns to London. On the plane, he could be briefed by national security officials.
4pm: She will arrive at Downing Street and make her first speech as Prime Minister.
Later this afternoon/evening: The new Prime Minister makes Cabinet appointments and holds further meetings with civil servants as well as phone calls with world leaders.
