When Is Labor Day In Usa. Labor day, is a legal holiday celebrated on the first monday in september in the united states, american samoa, guam, puerto rico, the canal zone, and the virgin islands. Labor day falls annually on the first monday in september, and is characterized by the u.s.
When labor day started labor day was first celebrated unofficially by labor activists and individual states in the late 1800s, according to the us department of labor. Federal holiday observed annually on the first monday in september celebrates the american labor movement and offers.