9:59
8:46am north tower attacked 9:03am south tower attacked
The twin towers were attacked on September 11, 2001. The attacks occurred in the morning, with the North Tower being struck at 8:46 am and the South Tower at 9:03 am.
The plane crashed into the North Tower at 8:46 am Eastern Standard Time
8:46 am American Airline flight 11 crashed into the north tower or Tower 1 cutting through floors 93-99 9:03 am. American Flight 77 crashed into the south tower or tower 2
The South Tower Collapsed at 9:03am and the North Tower Collapsed at 9:28am
8:46am north tower attacked 9:03am south tower attacked
10:38am when the twin towers started to fall
The South Tower collapsed 56 minutes after it was struck by the airplane, and the North Tower collapsed 102 minutes after impact.
The second twin tower collapsed at 10:28 am
The south tower collapsed at 9:59.
The Empire State Building was the tallest building in the world from the time of its completion in 1931, until it was surpassed by the North Tower of the World Trade Center in 1972 (the North Tower was completed before the South Tower).
The first plane crashed into the north tower at 1:46 pm. The second plane crashed into the south tower at 2:03 pm. That's for +5 hour difference.