Presidents who served one complete term were the following.
John Adams
Martin van Buren
James K. Polk
Franklin Pierce
James Buchanan
Benjamin Harrison
William H. Taft
Herbert Hoover
Jimmy Carter
George Bush Sr.
Then adding Presidents who served less than one term, there were a few more.
William Henry Harrison (died)
John Tyler (Harrison's VP)
Zachary Taylor (died)
Millard Fillmore (Taylor's VP)
Andrew Johnson (Lincoln's VP)
James A. Garfield (assassinated)
Chester A. Arthur (Garfield's VP)
Warren G. Harding (died)
John F. Kennedy (assassinated)
Gerald R. Ford (Nixon's VP)
Four years is one term for a US president.
President Hayes had one term, 1877-81
4 years
A Philippine president is in office for 6 years if he or she serves one term.
Pierce served as President for one term of four years.
This depends on the country/organization. A US President is elected to one term of 4 years.
Only one term of six years. And they cannot run for another term.
Jimmy Carter was President for one full term, 1977-1981.
Gerald R. Ford served less than one term as US President. He served out the remainder of Richard M. Nixon's term, from 9 August 1974 to 20 January 1977.
Ten- eight moved up to President when the president died or resigned; one died in office and one resigned before completing his term.
The term of a president is 4 years, and they can run for two terms.
Pierce served one complete four-year term.