Memorial Day Monday, May 27, 2019 12:00 AM 11:59 PM 00:00 23:59 United States (map) Google Calendar ICS “The willingness of America’s veterans to sacrifice for our country has earned them our lasting gratitude. ” — Jeff Miller Memorial Day is a federal holiday in the United States for remembering and honoring people who have died while serving in the United States Armed Forces.[1] The holiday is observed on the last Monday of May. Memorial Day was observed on May 30 from 1868 to 1970.[2] Many people visit cemeteries and memorials on Memorial Day, particularly to honor those who died in military service. Many volunteers place an American flag on each grave in national cemeteries.