In 2025, Patriots' Day will be celebrated in Massachusetts on Monday, April 21.
The holiday is legally mandated to be observed on the third Monday in April. This date commemorates the anniversary of the Battles of Lexington and Concord, which occurred on April 19, 1775, marking the beginning of the American Revolutionary War. Originally observed on the fixed date of April 19, the Commonwealth of Massachusetts changed the observance to the third Monday in April in 1969 to create a three-day weekend.
As an official state holiday, it involves the closure of public schools, state, and municipal offices. The most prominent event associated with the day is the Boston Marathon, which has been held on Patriots' Day annually since 1897, drawing international participants and spectators.
