The keyword phrase functions as a noun phrase, with the proper noun "Patriots' Day" serving as the principal subject. The words "open" and "closed" are predicate adjectives that modify the implied subject of "businesses and services." The phrase's grammatical structure frames an inquiry about the operational status of various entities on this specific holiday.
Patriots' Day is a state holiday observed in Massachusetts and Maine, and a public school holiday in Wisconsin; it is not a federal holiday. Consequently, federal offices, including post offices, and national banks remain open. However, state, county, and municipal government offices, as well as public schools and libraries within the observing states, are typically closed. Most retail businesses, restaurants, and other private sector companies choose to remain open, though some may operate on reduced or special hours. Public transportation services often run on a modified or Saturday schedule.
The practical implication is that the holiday's effect on business operations is highly localized. Outside of the specific states that observe it, the day has no impact on closures. For residents within Massachusetts and Maine, it is essential to distinguish between federal, state, and private entities. While state-run services will be unavailable, most commercial activities continue. Verifying the operating hours of a specific establishment is the most reliable method for confirming its status.
