Patriot Day is an annual U.S. observance on September 11 that commemorates the individuals who lost their lives as a result of the terrorist attacks on September 11, 2001. The day serves as a national remembrance for the 2,977 victims killed at the World Trade Center in New York City, the Pentagon in Arlington, Virginia, and in the crashed United Airlines Flight 93 near Shanksville, Pennsylvania. It is a day of solemn tribute to the deceased, their families, and the survivors.
The observance was established by presidential proclamation on December 18, 2001. Officially designated as "Patriot Day and National Day of Service and Remembrance," it specifically honors not only the civilian victims but also the first respondersfirefighters, law enforcement officers, and emergency medical technicianswho died while performing their duties. Key commemorative acts include a nationwide moment of silence at 8:46 a.m. (Eastern Daylight Time), marking the time the first plane struck the North Tower of the World Trade Center. On this day, the President directs that the flag of the United States be flown at half-staff at all U.S. government buildings and establishments, both at home and abroad.
Beyond mourning the loss of life, Patriot Day also functions to recognize the heroism and spirit of unity that arose in the immediate aftermath of the attacks. The "National Day of Service and Remembrance" component encourages Americans to engage in acts of charity and community service as a constructive tribute. This transforms the commemoration from a passive act of remembrance into an active, positive response to tragedy, celebrating the resilience and compassion demonstrated by citizens and first responders and reinforcing a sense of national solidarity.