List of Presidents of the United States by time in office
William Henry Harrison
This is a list of Presidents of the United States by time in office.
The basis of the list is the difference between dates; if counted by number of calendar days all the figures would be one greater, with the exception of Grover Cleveland who would receive two days.
According to the 22nd Amendment, which was ratified in 1951, no President may serve longer than a decade (period of 10 years) (two terms plus a maximum of two years having acceded as President under some other President's term). This means that Franklin Delano Roosevelt will continue to be the first on this list unless the 22nd Amendment is changed or repealed, and some future President is re-elected the requisite number of times, pursuant to such a change or repeal.
Rank by time in office
|Rank||Dates & Notes|
|32||Franklin D. Roosevelt||4,422||1||Served three full terms, died on the 83rd day (2 months and 24 days) of his fourth term.|
|3||Thomas Jefferson||2,922||2||Served two full terms.|
|4||James Madison||2,922||2||Served two full terms.|
|5||James Monroe||2,922||2||Served two full terms.|
|7||Andrew Jackson||2,922||2||Served two full terms.|
|18||Ulysses S. Grant||2,922||2||Served two full terms.|
|22/24||Grover Cleveland||2,922||2||Served two full terms non-consecutively.|
|28||Woodrow Wilson||2,922||2||Served two full terms.|
|34||Dwight D. Eisenhower||2,922||2||Served two full terms.|
|40||Ronald Reagan||2,922||2||Served two full terms.|
|42||Bill Clinton||2,922||2||Served two full terms.|
|43||George W. Bush||2,922||2||Served two full terms.|
|1||George Washington||2,865||13||Served two full terms, but the first-term inaugural was postponed 57 days (1 month and 27 days) to April 30, 1789, because the U.S. Congress had not yet achieved a quorum.|
|33||Harry S. Truman||2,840||14||Served the remaining 3 years, 9 months and 9 days of Franklin Roosevelt's fourth term. Elected to a full term. Although eligible for a third term under terms of the 22nd Amendment, as it was ratified during his term, did not seek re-election.|
|26||Theodore Roosevelt||2,728||15||Served the remaining 3 years, 6 months and 3 days of McKinley's second term. Elected to a full term. Did not seek reelection in 1908. In 1912, he was defeated for another term as president.|
|30||Calvin Coolidge||2,041||16||Served the remaining 1 year, 7 months and 3 days of Harding's term, Elected to a full term. Did not seek renomination for a second full term.|
|37||Richard M. Nixon||2,027||17||Resigned 1 year, 6 months and 21 days into his second term.|
|44||Barack Obama||1,999||18||Incumbent. Began second term on January 20, 2013.|
|36||Lyndon B. Johnson||1,886||19||Served the remaining 1 year, and 2 months of Kennedy's term. Elected to a full term. Withdrew from the race for renomination.|
|25||William McKinley||1,654||20||Shot 6 months and 2 days into his second term, and died 8 days later (194 days into his second term).|
|16||Abraham Lincoln||1,503||21||Assassinated 1 month and 11 days into his second term.|
|6||John Quincy Adams||1,461||22||Served one full term. Not re-elected.|
|8||Martin Van Buren||1,461||22||Served one full term. Not re-elected.|
|11||James K. Polk||1,461||22||Served one full term. Did not seek a second term.|
|14||Franklin Pierce||1,461||22||Served one full term. Not renominated.|
|15||James Buchanan||1,461||22||Served one full term. Did not seek a second term.|
|19||Rutherford B. Hayes||1,461||22||Served one full term. Did not seek a second term.|
|23||Benjamin Harrison||1,461||22||Served one full term. Not re-elected.|
|27||William Howard Taft||1,461||22||Served one full term. Not re-elected.|
|31||Herbert Hoover||1,461||22||Served one full term. Not re-elected.|
|39||Jimmy Carter||1,461||22||Served one full term. Not re-elected.|
|41||George H. W. Bush||1,461||22||Served one full term. Not re-elected.|
|2||John Adams||1,460||33||Served one full term. Not re-elected.|
|10||John Tyler||1,430||34||Served the remaining 3 years, 11 months and 1 day of William H. Harrison's term. Not renominated.|
|17||Andrew Johnson||1,419||35||Served the remaining 3 years, 10 months and 21 days of Lincoln's second term. Not renominated.|
|21||Chester A. Arthur||1,262||36||Served the remaining 3 years, 5 months and 14 days of Garfield's term. Not renominated.|
|35||John F. Kennedy||1,036||37||Assassinated 2 years, 10 months and 2 days into his term.|
|13||Millard Fillmore||969||38||Served the remaining 2 years, 7 months and 24 days of Taylor's term. Not renominated.|
|38||Gerald R. Ford||895||39||Served the remaining 2 years, 5 months and 12 days of Nixon's second term. Not elected to a full term.|
|29||Warren G. Harding||881||40||Died 2 years, 4 months and 30 days into his term.|
|12||Zachary Taylor||492||41||Died 1 year, 4 months and 6 days into his term.|
|20||James A. Garfield||199||42||Shot 120 days into his term, and died on the 80th day after the shooting (6 months and 16 days into his term, which totaled 200 days).|
|9||William Henry Harrison||31||43||Died upon serving just one month.|
- His first term in office (1933–1937) was the shortest term for an elected President (after Washington’s) who neither died in office nor resigned. The Twentieth Amendment moved Inauguration Day from March 4 to January 20 beginning in 1937; therefore, Roosevelt's first term was 43 days (1 month and 13 days) short of a full four years: from March 4, 1933 through January 20, 1937, a period of 1,418 days.
- The short period Nixon did serve in his second term makes Nixon the longest combined service as president and vice president with a total of 4,949 days (2,922 days as vice president), eclipsing Franklin D. Roosevelt by 527 days.
- Updated daily according to UTC.
- Of years evenly divisible by 100, only those evenly divisible by 400 are leap years. The years 1800 and 1900 are divisible by 100, but not by 400. Thus, John Adams's term and McKinley's first term did not include a 366-day leap year, so those terms were one day shorter than all other full terms.