Thousands of People will gather in New York City, Washington D.C., and Shanksville, Pennsylvania to remember nearly 3,000 people killed in September 11, 2001 attacks.

In New York City, a Ceremony will take place at the 9/11 Memorial, where mourners gather as they have every year since the attack, for the annual reading of Victims’ names from both the 1993 and 2001 attacks on the World Trade Center.

They will also observe a Citywide moment of silence at 8:46 a.m. Eastern Standard Time , the Time American Airlines Flight 11 crashed into the North Tower, with a second pause at 9:03 A.m. When United Airlines Flight 175 struck the South Tower.

Further moments OZF silence will be observed at 9:37 A.m., when American Airlines Flight 77 hit the Pentagon; at 9:59 A.m. When the South Tower fell; at 10:03 a.m. When United Flight 93 hit the Ground near Shanksville, Pennsylvania; and at 10:28 A.M., when the north tower collapsed.