The college community is asked to observe moments of silence at solemn times. As Brooklyn College has done every year after September 11, 2001, the campus will memorialize those lost on this tragic day with De Profundis (Latin for “out of the depths”) that will ring from the carillon in the Library Building’s bell tower. The bells will toll according to the chronology of the events of September 11, 2001, and the Brooklyn College community is asked to observe a moment of silence for these solemn times. 8:46 a.m. Flight 11 crashes into the 93rd through 99th floors of the North WTC Tower. 9:03 a.m. Flight 175 crashes into the 77th through 85th floors of the South WTC Tower. 9:37 a.m. Flight 77 crashes into the Pentagon. 9:59 a.m. The South WTC Tower collapses. 10:03 a.m. Flight 93 crashes near Shanksville, Pennsylvania. 10:28 a.m. The North WTC Tower collapses.