Vice president
Answer: March 4, 1797.
George Washington was the second time, and John Adams.
Adams was sworn in at Congress Hall in Philadelphia. (The capital was in Philadelphia until Adams' s last year in office when it moved to Washington.)
Second US President John Adams was sworn in on March 4, 1797. He served a single term of office and was succeeded by Thomas Jefferson on March 4, 1801.
The only President of the United States to be sworn into office within the city or state of New York was George Washington, on April 30, 1789.
In April, 1789, George Washington was sworn in at Federal Hall, in New York City.
John Adams, President Washington was late to be sworn in and John Adams had to swear in for him.
Lyndon Johnson was sworn in office on Air Force One, but I do not know of any presidents sworn in out of the U.S.
Lyndon B. Johnson was the only president sworn into office on an airplane.
A national disaster does not change when the president-elect gets sworn in to office. However, it might change the location of where he is sworn in to office.
The President is customarily sworn into office on the steps of the US Capitol building.