In accordance with the Uniform Monday Holiday Act passed by the U.S. Congress in 1968, observation of Memorial Day occurs on the last Monday in May for the first time, rather than on the traditional Memorial Day of May 30.

The Uniform Monday Holiday Act is an Act of Congress that permanently moved two federal holidays in the United States to a Monday, being Washington's Birthday and Memorial Day, and further made Columbus Day a federal holiday, also permanently on a Monday. This created long weekends with three days off ending with the holidays, such as Memorial Day Weekend.