List of presidents of Finland by time in office explained

This is a list of presidents of Finland by their time in office. For a consecutive list, see list of presidents of Finland.

List

Length of term	Took office	Left office	Note
	1 March 1956	27 January 1982	4 terms serving, 3rd longer^[1] and last shorter than normal • resigned due to poor health
	27 January 1982	1 March 1994	2 terms serving, 1st slightly over a month longer than normal^[2]
	1 March 2000	1 March 2012	2 terms serving
	1 March 2012	1 March 2024	2 terms serving, 1st one month shorter (but normal)^[3]
	11 March 1946	1 March 1956	2 terms serving, 1st shorter than normal^[4]
NOTE: days, due to two leap days: 29 February 1996 and 2000	1 March 1994	1 March 2000	1 term serving
NOTE: days, due to one leap day: 29 February 1928	2 March^[5] 1925	2 March 1931	1 term serving
NOTE: days, due to two leap days: 29 February 1932 and 1936	2 March 1931	1 March 1937	1 term serving, one day shorter (but normal)
	26 July 1919	2 March 1925	1 term serving, slightly under five months shorter than normal^[6]
	1 March 1937	19 December 1940	1 term serving, shorter than normal • resigned due to poor health
	19 December 1940	4 August 1944	2 terms serving, both shorter than normal^[7] • resigned due to the Ryti–Ribbentrop Agreement
	4 August 1944	11 March 1946	1 term serving, shorter than normal^[8] • resigned due to poor health
	1 March 2024		1 term serving

Third term was longer than normal due to it was extended by four years by an exception law during the term,
under normal conditions.
The start of first term was earlier than normal due to the resignation of the predecessor Kekkonen.
According to the current Constitution of Finland, if the president is elected directly in the first round of the election,
the term normally starts (and the previous one ends) on 1 February instead of 1 March.
First term was shorter than normal due to while the martial law was in effect, a new term of office did not start,
but it had been started by the predecessor Mannerheim.
During the old Constitution of Finland, Constitution Act (1919–2000) when 1 March was a Sunday,
the term changed to Monday, 2 March.
The start of the President of Finland's first ever term was later than enacted due to the entry into force
of the Constitution of Finland, Constitution Act.
First term was shorter than normal due to while the martial law was in effect, a new term of office did not start,
but it had been started by the predecessor Kallio.
The duration of the second term was exceptionally enacted for only two years due to during the war.
Decreed as president by an exception law due to that the predecessor Ryti had announced his resignation during the war.