Reuters: Here is a guide to the main inauguration events. All times are Eastern Time.
Former presidents, House of Representatives members, senators, governors and Cabinet designees begin to arrive at the U.S. Capitol for the public, ceremonial inauguration of President Obama and Vice President Biden.
Fifth-grade chorus from Public School 22 in Staten Island, New York performs
U.S. Marine Band performs
First lady Michelle Obama takes her seat
Vice President Joe Biden takes his seat
President Barack Obama takes his seat
Myrlie Evers-Williams, widow of slain civil-rights leader Medgar Evers, gives the invocation
The Brooklyn (New York) Tabernacle Choir sings "The Battle Hymn of the Republic"
Supreme Court Justice Sonia Sotomayor administers the vice presidential oath of office to Vice President Biden
Singer James Taylor performs "America the Beautiful"
U.S. Chief Justice John Roberts administers the presidential oath of office to President Obama
Trumpets perform "Ruffles and Flourishes" and the U.S. Marine Band performs "Hail to the Chief," followed by a 21-gun salute
Obama delivers the inaugural address
Singer Kelly Clarkson performs "America (My Country 'Tis of Thee)"
Cuban-American poet Richard Blanco reads a poem
Benediction is delivered by the Rev. Luis Leon
Singer Beyonce sings the national anthem, "The Star-Spangled Banner"
President Obama signs official documents. The Obamas then attend the inauguration luncheon at the Capitol with the Bidens
Review of the troops
The Obamas and Bidens begin the inaugural parade down Pennsylvania Avenue to the White House
Commander-in-chief's inaugural ball at the Washington Convention Center with military personnel and their spouses. The Obamas and Bidens are scheduled to attend.
Official Inaugural Ball, at the Washington Convention Center. The Obamas and Bidens are scheduled to attend.
TUESDAY, JANUARY 22
National Prayer Service at the Washington National Cathedral attended by President Barack Obama and Vice President Joe Biden