The Prime Minister of the UK can remain Prime Minister for as long as 5 year and then call an election but at the current time the Prime Minster can call an election at what ever time he wants
The Prime Minister of Iceland can serve for as long as they can hold the votes of the majority of the parliament.
Ólafur Ragnar GrÃmsson has been the President of Iceland since 1996 August 1, nearly 15 years.
There has to be a general election in Britain at least every 5 years, so that is a longest single term. A Prime Minister can be re-elected as often as their party wants them and they remain in power, so there is no real maximum time they can serve as such. In modern times Margaret Thatcher was Prime Minister from May 1979 to November 1990. There have been longer serving ones. Robert Banks Jenkinson was Prime Minister from June 1812 to April 1827. Sir Robert Walpole was the first and longest serving from 1721 to 1742.
First Prime Minister of Pakistan Mr. Khan Liaquat Ali Khan.
Klaus Tschütscher was the Prime Minister of Liechtenstein in 2012. He became the Prime Minister of Liechtenstein on 2009 March 25, and will serve until 2013 March.
Savka Dabčević-KučarIn 1967 she became the prime minister of Croatia, giving her the distinction of being Europe's first female prime minister.
Klaus Tschütscher was the Prime Minister of Liechtenstein in 2011. He became the Prime Minister of Liechtenstein on 2009 March 25, and will serve until 2013 March.
In Russia, the Prime Minister isn't elected and does not serve a specific term length. He or she is appointed by the President and can be let go any time the President chooses. If a new president is elected, then the Prime Minister must resign, and a new Prime Minister will be appointed by the new President.
The present prime minister of Canada, Stephen Harper, serves the rich and powerful as well as the large corporations.
after her predecessors death, she came out of retirement in 1969 and served as prime minister until 1974.
Feb. to December 1868
The Prime Minister serves as long as his party is in power, whether it be as a single party or as part of a coalition. The Prime Minister stops serving when they step down, or he loses the ability to lead the government.
Klaus Tschütscher is the Prime Minister of Liechtenstein at the beginning of 2013. He became the Prime Minister of Liechtenstein on 2009 March 25, and will serve until 2013 March, when he will be replaced by Adrian Hasler.
He served as Prime Minister from 01/01/1901 to 24/09/1903 - a total of 996 days