How long is the U.S flag at half mass after a president dies?

Answer 1

1 month. Well thats what Bush has stated everyone has to do anyway

Answer 2

The period of mourning is one month.

The following is an excerpt from a proclamation made by President Bush...

TO THE PEOPLE OF THE UNITED STATES:

It is my sad duty to announce officially the death of Gerald R. Ford, the thirty-eighth President of the United States, on December 26, 2006...

NOW, THEREFORE, I, GEORGE W. BUSH, President of the United States of America, by the authority vested in me by the Constitution and laws of the United States, in honor and tribute to the memory of Gerald R. Ford, and as an expression of public sorrow, do hereby direct that the flag of the United States be displayed at half-staff at the White House and on all buildings, grounds, and Naval vessels of the United States for a period of 30 days from the day of his death. I also direct that for the same length of time, the representatives of the United States in foreign countries shall make similar arrangements for the display of the flag at half-staff over their Embassies, Legations, and other facilities abroad, including all military facilities and stations....

You can read the full proclamation here:
http://www.whitehouse.gov/news/releases/2006/12/20061227-1.html

Answer 3

The time is usually 1 month, 30 days. However, in special circumstances, this can be adjusted by the President to be longer or shorter.

Answer 4

1 month or 30 days.

Answer 5

Thirty days.