In the United States, a new president usually has a two-month window to prepare to move into the White House.
Freshly elected British prime ministers move into Downing Street swiftly, often within hours of elections.
Keir Starmer, whose Labour Party won a commanding majority in the House of Commons, was formally appointed prime minister on Friday by King Charles III.
Just hours after his predecessor, Rishi Sunak, made his exit, the new prime minister is about to make a speech to supporters outside the front door of 10 Downing Street.
Since the last general election five years ago, three prime ministers have lived there, including Liz Truss, who called Downing Street home for less than seven weeks.
Persons:
Keir Starmer, King Charles III, Rishi Sunak, Liz Truss
Organizations:
Downing, Labour Party, Institute for Government
Locations:
United States, British