Patriots' Day is not a federal holiday in the United States. Its classification is that of a state holiday, meaning it is officially recognized and observed only by specific state governments, not by the U.S. federal government. Therefore, federal offices, such as post offices and federal courts, remain open nationwide, including in the states that observe the holiday.
The distinction lies in the enacting authority. Federal holidays are designated by the U.S. Congress and apply to all federal employees and institutions across the country. In contrast, Patriots' Day is an official state holiday in Massachusetts and Maine, where it is a long-standing tradition. It is also recognized in Connecticut and Wisconsin, although observance is not as widespread. The holiday commemorates the anniversary of the Battles of Lexington and Concord on April 19, 1775, the first armed conflicts of the American Revolutionary War.
Consequently, the practical application of this distinction is significant. While state and local government offices, public schools, and some businesses may close in Massachusetts and Maine on the third Monday in April, there is no nationwide closure of services. For the vast majority of the U.S. population and for all federal functions, it is a regular business day.
