The U.S. Constitution specifies not only the date of presidential inaugurations, but the exact time the transition of power is official.

Inauguration Day is quickly approaching. Find out details on when Trump officially becomes president, what events to expect, and how to get tickets.

On Jan. 20, following an embattled first term and tense election year — as well as two impeachments and a felony conviction, a first for any U.S. president — President-elect Donald Trump will be sworn into office for the second time.