The 11th anniversary of the Sept. 11, 2001 attacks will feature a memorial ceremony at the World Trade Center and special events around New York City.

The Sept. 11 attacks killed 2,977 people, from the World Trade Center, the Pentagon, and the three flights that were hijacked by 19 terrorists.

The day's events will feature the  "Tribute in Light," supported by the National September 11 Memorial & Museum, and sponsored in part by The Municipal Art Society of New York and Citi. The Tribute in Light will feature lights coming West and Morris Streets in lower Manhattan symbolizing the lives lost on the that The lights are located at West and Morris streets in lower Manhattan.  The lights are expected to turn on at 7:11 p.m. EDT and fade by 6:43 a.m. the following morning. The lights consist of 44 7,000-watt xenon light bulbs and are put in two 48-foot squares modeled after the Twin Towers. The lights can be seen up to 4 miles high and from 30 miles away.

9/11 11th Anniversary Memorial Schedule (All times are EDT):

8:39 a.m. - Program begins

Bagpipers and drummers lead WTC flag through memorial to the stage

Young People's Chorus of New York City performs the National Anthem

8:46 a.m. - Moment of silence (observance of time AA Flight 11 struck North Tower)
(Houses of worship will toll their bells throughout the City)

Family members will begin reading the names in pairs

There will be 100 pairs (200 readers) who will continue until all names are read

Music will provide a backdrop throughout the program

9:03 a.m. - Moment of silence (observance of time UA Flight 175 struck South Tower)
Reading of names continues/music resumes

9:37 a.m. - Moment of silence (observance of time AA Flight 77 struck the Pentagon)
Reading of names continues/music resumes

9:59 a.m. - Moment of silence (observance of time of fall of the South Tower)
Reading of names continues/music resumes

10:03 a.m. - Moment of silence (observance of time UA Flight 93 crashed near Shanksville, Pennsylvania)
Reading of names continues/music resumes

10:28 a.m. - Moment of silence (observance of time of fall of the North Tower)

Reading of names continues to conclusion/music resumes

Young People's Chorus of New York City performs "Give Us Hope"

Taps performed by three trumpeters (NYPD, FDNY, PAPD)

12:30 p.m. - Program concludes

8:00 p.m. - National September 11 Memorial Closes