The day America changed
A timeline of events on September 11, 2001 and beyond.
• 5:45 a.m. EDT: Hijackers Mohammed Atta and Abdulaziz al-Omari pass through airport security in Portland, Maine, and board a flight for Boston. Over the next 90 minutes, 17 other hijackers clear security at three other Eastern airports.Skip to next paragraph
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• 6:00 a.m.: Polls open in New York City for primary elections.
• 8:14 a.m.: United Airlines Flight 175 takes off from Boston with other hijackers on board.
• 8:24 a.m.: On Flight 11, Atta, trying to communicate with the cabin, mistakenly contacts air traffic control.
• 8:37 a.m.: Air traffic control reports the hijacking to the US military.
• 8:46 a.m.: Flight 11 crashes into the North Tower of the World Trade Center (WTC).
• 8:55 a.m.: Occupants of the unhit WTC's South Tower are told not to evacuate. The building is secure. Then, minutes later, the New York Port Authority initiates an evacuation.
• 9:03 a.m.: Flight 175 smashes into the South Tower.
• 9:31 a.m.: Bush, speaking in Florida, says the country has suffered an "apparent terrorist attack."
• 9:37 a.m.: Hijackers crash Flight 77 into the Pentagon.
• 9:48 a.m.: US authorities evacuate the US Capitol and the White House's West Wing.
• 9:59 a.m.: The South Tower collapses.
• 10:03 a.m.: Hijackers, trying to prevent passengers from retaking the plane, crash Flight 93 in a field southeast of Pittsburgh.
• 10:28 a.m.: The North Tower collapses.
• 10:50 a.m.: New York postpones primary elections.