Since the late 1930s, what date has been reserved for the inauguration of a President of the USA?
President of the United States first ballot. Pursuant to the Twentieth Amendment, the four-year term of office for both the president and vice president begins at noon on January 20. The first presidential and vice presidential terms to begin on this date, known as Inauguration Day, were the second terms of President Franklin D. Roosevelt and Vice President John Nance Garner in 1937. Previously, Inauguration Day was on March 4. As a result of the date change, the first term (1933–37) of both men had been shortened by days. Before executing the powers of the office, a president is required to recite the presidential oath
President-elect of the United States have been sworn in as president on Inauguration Day. Since the widespread adoption of the telegraph in the mid-19th century, the "de facto" president-elect has been known beyond a reasonable doubt, with only a few exceptions, within a few hours of the polls closing on election day. As a result, incoming presidents gained valuable preparation time prior to assuming office. Recent presidents-elect have assembled transition teams to prepare for a smooth transfer of power following the inauguration. Outgoing presidents have cooperated with the president-elect on important policy matters during the last two months of the president's term to ensure a