January 20 is the date the president is sworn in.
JANUARY 20
I think the president becomes official at NOON the day of inauguration, whether he takes the oath or not.
Inauguration Day, which is on January 20th.
He takes the oath of office on 20 January, following the election in November.
There is no constitutional mandate for the U.S. Presidential oath of office to be given on any particular day or time. The modern consensus (again, not constitutionally mandated) is that the previous President is, technically, no longer in power, as of midnight on the given day the oath of office is to be given to the new President (even if it's the same person), and that noon of that day is the time the new President will be given the oath. As soon as the new President has completed the oath, he is, technically speaking, granted all the powers of that office.
They assume office at noon on January 20, according to Amendment XX.
He takes an oath.
The Chief Justice
it is called Inaugaration Day
nobody
on this day, he gas to give his oath to the nation
January 20th is the day the new President gets sworn in and the old President's term ends.The old president remains President up until the moment the new President takes the oath of office. The Oath of office ceremony is on the 20th of January following the election.
The first inauguration did not take place until April 30, 1789.