9/11 timeline

8:20AM(est):Air traffic controllers suspect Flight 11 has been hijacked.
8:40AM:NORAD is notified of hijacking.
8:46AM: Flight 11 crashes into the WTC(World Trade Center)north tower.
8:52AM:Two F-15s take off from Otis Air Force Base.
8:56AM:By this time,it is evident that Flight 77 is lost.
9:03AM:Flight 175 crashes into the south WTC tower.
9:10AM:Major General Paul Weaver states Flight 77 came back on the (radar) Viriginia
9:28AM:Air traffic control learns that Floght 93 has been hijacked.
9:38AM:Flight 77 crashes into the Pentagon.
9:59AM:The south tower of the World Trade Center collapses.
10:10Am:Flight 93 crashes in Pennsylvania.
10:28AM:The World Trade Center north tower collapses.