Boris Johnson leaves Downing Street having narrowly managed to clock up more days in the job than his immediate predecessor, Theresa May.When Mr Johnson's premiership comes to an end on September 6, it will have lasted three years and 44 days - slightly longer than that of Mrs May, who was in office for three years and 11 days between 2016 and 2019.

Boris Johnson leaves Downing Street having narrowly managed to clock up more days in the job than his immediate predecessor, Theresa May.When Mr Johnson's premiership comes to an end on September 6, it will have lasted three years and 44 days - slightly longer than that of Mrs May, who was in office for three years and 11 days between 2016 and 2019.