Records of Prime Ministers of the United Kingdom combined with his first term (13 July 176530 July 1766) his total time in office was 1 year and 113 days, which exceeds the total periods of several other Prime Ministers. (The Duke of Wellington had also served as Prime Minister between 1828 and 1830.) Consequently, the Prime Minister with the total shortest period in office was George Canning, whose sole term lasted 119 days from 12 April 1827 until his death on 8 August 1827. The Prime Minister with the longest period between the start of their first appointment and the end of their final term was the Duke
Prime Minister of Canada the House of Commons; as a practical matter, this is often the leader of a party whose members form a majority, or a very large plurality, of Members of Parliament (MPs). While there is no legal requirement for the prime minister to be a member of parliament, for practical and political reasons the prime minister is expected to win a seat very promptly. However, in rare circumstances individuals who are not sitting members of the House of Commons have been appointed to the position of prime minister. Two former prime ministers—Sir John Joseph Caldwell Abbott and Sir Mackenzie Bowell—served in