Patriot Day 2024 Massachusetts Institute. Patriots' day is a state holiday in massachusetts celebrated on the third monday of april. Patriots' day is a state holiday in massachusetts that commemorates the revolutionary war battles of 1775.

Monday, april 15, 2024 (all day) learn more. Patriots day is a legal holiday or a special observance day in six states, commemorating the battles of lexington, concord, and menotomy in the american revolutionary war.