What is the significance of January 20 in relation to the presidency?

January 20 holds significance in relation to the presidency as it is the date when the President is sworn in after being elected. This date is established by the 20th Amendment to the United States Constitution, which mandates that the presidential inauguration take place at noon on January 20 following the election. This transition is crucial as it represents the formal start of the new administration and the peaceful transfer of power, a cornerstone of democratic governance.

Understanding this date is essential for comprehending the electoral process and the timeline involving the selection of a president. The other options present different aspects of the electoral process, but none carry the specific importance of the inauguration date itself.