Second inauguration of Barack Obama 1937, the 4-year term of the President and Vice President have ended and begun at noon on January 20, as prescribed by the Twentieth Amendment to the United States Constitution. Because January 20, 2013, fell on a Sunday, both Obama and Biden were officially sworn in privately, and then again the following day in a public ceremony. This was the seventh time since the start of James Monroe's second term in office, in 1821, that the oath of office was officially administered in a Sunday private ceremony. Chief Justice John Roberts administered the oath of office to the President on
Vice President of Liberia the Vice President serves as president for the remainder of his or her predecessor's term, though this period is not considered a term for the purposes of term limits to the presidency. According to Article 63(a), should the president-elect die or become otherwise incapacitated before his or her inauguration, the Vice President-elect is sworn in as president in their place, though a term of this nature does constitute a term for the purposes of determining term limits. To date, five Vice Presidents have ascended to the presidency, either due to the president's death, resignation, or removal from office: James Skivring