Who was second-longest serving US president?

At definitely early afternoon in Washington on 20 January, Barack Obama's eight years as US president will end.

Mr Obama will join 11 past two-term presidents in a dead warmth as the country's second longest serving head of state.

They include:

Thomas Jefferson (president from 1801 to 1809)

James Madison (president from 1809 to 1817)

James Monroe (president from 1817 to 1825)

Andrew Jackson (president from 1829 to 1837)

Ulysses Grant (president from 1869 to 1877)

Grover Cleveland (president from 1885 to 1889 and 1893 to 1897)

Woodrow Wilson (president from 1913 to 1921)

Dwight Eisenhower (president from 1953 to 1961)

Ronald Reagan (president from 1981 to 1989)

Charge Clinton (president from 1993 to 2001)

George W Bush (president from 2001 to 2009)

Be that as it may, each of these men trails Franklin Roosevelt, whose record of 12 years in office (1933-45) went before the presentation of two-term limits.

Is it conceivable to discover a method for breaking this 12-path tie for second place?

A blend of clock altering, postponed vow taking, established changes, restorative techniques and the abating of the world's turn around the sun implies that each of the second place presidents has practiced his forces for an alternate measure of time.

The Clock and the Oath

There are two approaches to figure the length of a president's administration: the clock and the pledge.

The clock is the date and time that the law fixes for the begin and end of a president's term.