The National Moment of Remembrance, established by Congress, asks Americans, wherever they are at 3 p.m., local time, on Memorial Day, to pause in an act of national unity for a duration of one minute. The time 3 p.m. was chosen because it is the time when most Americans are enjoying their freedoms on the national holiday. The Moment does not replace traditional Memorial Day events; rather, it is an act of national unity in which all Americans, alone or with family and friends, honor those who died in service to the United States.

As laid out in Public Law 106-579, the National Moment of Remembrance is to be practiced by all Americans throughout the nation at 3pm local time. At the same time, a number of organizations throughout the country also observe the Moment: all Major League Baseball games halt, Amtrak train whistles sound across the country, and hundreds of other nationwide participants remind Americans to pause for the Memorial Day National Moment of Remembrance.