National Pearl Harbor Remembrance Day, also referred to as Pearl Harbor Remembrance Day or Pearl Harbor Day, is observed annually in the United States on December 7, to remember and honor the 2,403 citizens of the United States who were killed in the Japanese surprise attack on Pearl Harbor in Hawaii on December 7, 1941.

An aerial view of the USS Arizona Memorial with a US Navy (USN) Tour Boat, USS Arizona Memorial Detachment, moored at the pier as visitor disembark to visit and pay their respects to the Sailors and Marines who lost their lives during the attack on Pearl Harbor on December 7, 1941.