Apr 1976 May 1979 James Callaghan

5 Apr 1976 - 4 May 1979	James Callaghan
4 May 1979 - 28 Nov 1990	Margaret Thatcher
28 Nov 1990 - 2 May 1997	John Major
2 May 1997 - 27 Jun 2007	Tony Blair
27 Jun 2007 - 11 May 2010	Gordon Brown
11 May 2010 - 13 Jul 2016	David Cameron
13 Jul 2016 - 24 Jul 2019	Theresa May
24 Jul 2019 -	Boris Johnson

Brexit 2020 was at 11:00 PM on
Friday, January 31
All times are in United Kingdom Time.