When was Winston churchil priministor?

Winston Churchill was Prime Minister twice.

First time from May 1940 to August 1945. ( During WW(II))

Second time from May 1951 to 1955 . (Post WW(II))

He was preceded, 1940, by Mr. Neville Chamberlain. (Conservative)

Between 1945 and 1951 was Mr Clement Attlee. (Labour)

Suceeded in 1955 by Mr Anthony Eden . (Conservative).