Inauguration Day occurs every four years on January 20, when American citizens gather in Washington D.C. to witness the swearing-in of the president-elect and vice president-elect. This event marks the beginning of the new four-year term for the president of the United States and is often celebrated with parades and festivities. The day begins with the outgoing president accompanying the president-elect to the Capitol for the Swearing-In ceremony. Following this, both the president and vice president take their oaths of office in the Senate chamber, after which the president delivers an inaugural address. A luncheon is typically hosted for the newly inaugurated officials after the ceremonies. If Inauguration Day falls on a Sunday, the event is postponed to January 21.