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
Historical rankings of Prime Ministers of Canada Historical rankings of Prime Ministers of Canada Historical rankings of Canadian prime ministers are surveys conducted in order to construct rankings of the success of individuals who have served as Prime Minister of Canada. Ranking systems are usually based on surveys of academic historians, economists and political scientists. The rankings focus on the achievements, leadership qualities, failures and faults in office. "Note: Click the "sort" icon at the head of each column to view the rankings for each survey in numerical order." Sequence listed by first term as Prime Minister <nowiki>*</nowiki> Ranking calculated before the prime minister had left office