9-11 Observances Across the United States: New York, Washington, D.C. and Shanksville, Pa.

From USA Today.

In New York City, the observance begins at 8:46 a.m., ET, when the first tower of the World Trade Center was struck.  The second plane hit the second tower at 9:03 a.m..

At 9:37  a.m., President Trump will lead the observance at the Pentagon Building outside Washington, D.C..  That was the moment the third plane hit.

The observance near Shanksville, Pennsylvania, will begin at 10:03 a.m. ET, when the fourth plane crashed.

The names of all victims will be read at the 9/11 Memorial and Museum in New York City.