What happens every 4 years on January 20?

Every four years on January 20, the President of the United States is inaugurated if they have won the presidential election. This ceremony marks the official transition of power, where the incoming president takes the oath of office and delivers an inaugural address. It is a significant event in American democracy, symbolizing the peaceful transfer of power. If the election year coincides with a leap year, this tradition aligns with the extra day added to February.