Patriots' Day in Massachusetts is officially observed on the third Monday in April. Therefore, the answer to whether "tomorrow" is Patriots' Day depends entirely on the current day. The holiday occurs on a specific Monday of the month rather than a fixed calendar date.
The holiday commemorates the Battles of Lexington and Concord, which were fought on April 19, 1775, and marked the beginning of the American Revolutionary War. While the historical anniversary is April 19th, Massachusetts law established the third Monday in April as the official date of observance in 1969 to create a three-day weekend. It is a public holiday in Massachusetts and Maine, as well as a school holiday in Wisconsin. The Boston Marathon, one of the world's most famous running events, has been traditionally held on Patriots' Day since 1897, becoming a central part of the modern observance.
As a public holiday, its practical application involves the closure of state, county, and municipal government offices, as well as public schools and many private businesses in Massachusetts. The day holds a dual significance: it serves as a solemn commemoration of a pivotal event in American history while also being a day for major civic and sporting traditions that draw local and international attention.
