Prime Minister of Australia prime minister, otherwise William McMahon63. Robert Menzies was the oldest person to ever be prime minister, leaving office at 71 years old. The longest-serving Prime Minister was Sir Robert Menzies, who served in office twice: from 26 April 1939 to 28 August 1941, and again from 19 December 1949 to 26 January 1966. In total Robert Menzies spent 18 years, 5 months and 12 days in office. He served under the United Australia Party and the Liberal Party respectively. The shortest-serving Prime Minister was Frank Forde, who was appointed to the position on 6 July 1945 after the death of
Prime Minister of Malaysia age of . Prime Minister of Malaysia The Prime Minister of Malaysia () is the head of government and the highest political office in Malaysia. The Yang di-Pertuan Agong appoints Prime Minister as a Member of Parliament (MP) who, in his opinion, is most likely to command the confidence of a majority of MPs. The Prime Minister chairs the Cabinet of Malaysia, the de facto executive branch of government. On 18 October 2018, 7th Prime Minister, Mahathir Mohamad, announced a two-term limit (10 years Max) to all Cabinet Profolio. After the formation of Malaysia on 16 September 1963, Tunku Abdul