In 2025, Patriot Day will be observed on Thursday, September 11. Grammatically, the answer to the inquiry is a noun phrase ("Thursday, September 11, 2025") that functions to identify the specific date. The observance is fixed to the calendar date of September 11 each year to commemorate the anniversary of the 2001 terrorist attacks on the United States.
Patriot Day is officially designated as the National Day of Service and Remembrance. It is a national observance established by a joint resolution of the U.S. Congress and a presidential proclamation. Key customs associated with the day include the flying of the U.S. flag at half-staff at all federal buildings and individual homes. A nationwide moment of silence is also observed, typically beginning at 8:46 a.m. (EDT), the time the first plane struck the World Trade Center.
It is important to differentiate Patriot Day (September 11) from Patriots' Day, a regional public holiday observed on the third Monday in April in Massachusetts and Maine, which commemorates the Battles of Lexington and Concord. As a day of solemn remembrance rather than a federal holiday, Patriot Day does not result in the closure of federal offices, schools, or most businesses. Its annual observance on the fixed date ensures a consistent national moment for reflection and honoring the victims of the 2001 attacks.
