Patriot's day. In the United States, Patriot Day occurs each year in memory of the people killed in the September 11 attacks of the year 2001.
The flag of the United States is flown at half-mast at the White House and on all U.S. government buildings and establishments throughout the world; Americans are also encouraged to display flags in and outside their homes. Additionally, a moment of silence is observed to correspond with the attacks, beginning at 8:46 a.m. (Eastern Daylight Time), the time the first plane, American Airlines Flight 11, struck the North Tower of the World Trade Center on September 11, 2001.
