How long is the flag flown at half-staff when a former President dies?

Traditionally, the President then issues a proclamation "officially" informing the people of the United States, directs all Federal flags to be flown at half-staff over Federal facilities, and designates a "National Day of Mourning," as a mark of respect and remembrance for the former President. President Bush has designated this Friday, June 11, 2004, the day of President Reagan's funeral, as the National Day of Mourning for President Reagan. As far as flags generally, the President directs the manner of their display over Federal facilities only -- he does not direct their display over non-Federal facilities. Individuals, other levels of government, and private concerns are simply encouraged to follow these observances. (Emphasis added)

The point being made by The President's Executive Clerk is that in these United States of America, even our most powerful leader can not order our most humble citizen to participate in a display of mourning or respect. Half-staffing Old Glory is a matter left to the dictates of each individual's conscience. The President invites citizens to participate. Hey, it is one of the things that makes us different than many other countries.

Q: North Conway, NH: We need to know when to return the flags at our resort to full staff. I have read several news reports which state once President Reagan is interred (after 10:30 ET or so Friday night), I have also read that tradition states the flags should be lowered for 30 days for a President. Can you tell me what the government plans and what private citizens and businesses should do?