All Times Eastern
8:00 a.m. (Start Webcast in NYC)
Ground Zero ceremony begins as bagpipe players converge on the site.
NYC Mayor Michael Bloomberg introduces moment of silence, to take place at 8:46 a.m., marking the time the first plane struck the trade center. President Bush marks the moment of silence at the White House.
NY Governor George Pataki reads an excerpt from the Gettysburg address.
Former NYC Mayor Rudolph Giuliani begins reading the names of those killed or missing in the World Trade Center attack.
New York ceremony pauses to observe moment of silence when the second plane struck the WTC, then reading of names continues.
9:30 a.m. (Live Webcast switches to the Pentagon)
Pentagon ceremony, including moment of silence commemorating time the plane struck at 9:37 a.m.
10:00 a. m.
President Bush makes remarks at the Pentagon.
Switch back to NYC ceremony following the conclusion of President Bush's remarks.
Observance of moment when north WTC tower fell.
New Jersey Governor Jim McGreevey reads from the Declaration of Independence.
New York Stock Exchange opens.
12:30p.m. (Switch to Shanksville, PA)
President Bush lays wreath at Shanksville crash site.
President Bush arrives at Ground Zero and lays wreath.
Ceremony begins at NYC Sphere in Battery Park, near ground zero.
NYC Mayor Bloomberg reads excerpt from FDR "Four Freedoms" speech.
Eternal flame lit by Mayor Bloomberg and WTC family member.
President Bush addresses the nation.