Memorial Day is observed on the last Monday of April only.
On Memorial Day, the flag of the United States is raised briskly to the top of the staff and then solemnly lowered to the half-staff position, where it remains only until noon
The name "Memorial Day", which was first attested in 1882, gradually became more common than "Decoration Day" after World War II but was not declared the official name by federal law until 1967

