The query concerns the specific moment a former president would commence their duties in office, assuming a Monday inauguration. In the United States, presidential inaugurations traditionally occur on January 20th, unless that date falls on a Sunday. When January 20th is a Sunday, the public ceremony is typically held on Monday, January 21st.
The timing of the oath of office is significant as it marks the formal transfer of power. Historically, the inauguration signals a new administration’s policy direction and priorities. Public interest in the precise time stems from a desire to witness this important event and understand the beginning of a new presidential term.