Patriot Day, observed annually on September 11 in the United States, is also called the "National Day of Service and Remembrance" and sometimes referred to as the "Day of Remembrance" or "Patriots Day" by some
. It commemorates the victims of the September 11, 2001 terrorist attacks and honors the heroic acts of first responders and ordinary Americans on that day
. The day is marked by flying the U.S. flag at half-staff and observing a moment of silence at 8:46 a.m., the time the first plane struck the World Trade Center
