Patriot Day is observed annually in the United States on September 11th. It is a national day of remembrance to commemorate the 2,977 people killed in the terrorist attacks of September 11, 2001. On this day, the American flag is flown at half-staff at all U.S. government buildings and establishments, and a moment of silence is often observed at 8:46 AM (Eastern Daylight Time), the time the first plane struck the North Tower of the World Trade Center.
Grammatically, the keyword phrase "what day is patriot day" is an interrogative clause, which is a type of clause that asks a question. When analyzed as a unit or topic for an article, this entire clause functions as a noun clause. A noun clause is a dependent clause that acts as a noun; it can be the subject of a sentence, an object, or a predicate nominative. For example, in the sentence, "The article explains what day is patriot day," the italicized phrase serves as the direct object of the verb "explains." The main point of the keyword term, therefore, is its function as a nominal conceptthe question itself becomes the subject matter.
It is important to distinguish Patriot Day (September 11) from Patriots' Day, a state-level holiday celebrated on the third Monday of April in Massachusetts, Maine, and Wisconsin. Patriots' Day commemorates the opening battles of the American Revolutionary War in 1775. Understanding the distinction between these two observances is crucial for clarity, just as recognizing the grammatical function of the query as a noun clause is essential for structuring content around it effectively.