The subject of the query, the proper noun "Veterans Day," refers to a U.S. federal holiday observed annually on November 11th. This date is fixed and does not change from year to year, honoring all military veterans who have served in the United States Armed Forces.
The date of November 11th was chosen to commemorate the end of World War I, which formally ceased with an armistice on the 11th hour of the 11th day of the 11th month of 1918. While the date of the holiday itself is constant, the corresponding day of the week changes annually. When November 11th falls on a non-workday, such as a Saturday or Sunday, the U.S. federal government and many organizations observe the holiday on the adjacent weekday. If it falls on a Saturday, the observed holiday is typically the preceding Friday; if it falls on a Sunday, it is the following Monday.
Therefore, the celebration of Veterans Day occurs on November 11th each year, but the practical observance of the public holiday, including federal office closures and parades, may be scheduled for a different date if the 11th lands on a weekend. The core identity of the event remains tied specifically to the historical date of November 11th.
