As a rather odd addition to this, here in Oz, the planes struck on 9/11 (in US speak) but the towers came down on 9/12.
I flicked over to the Sky news not long before midnight (and, I thought, just before going to bed) to find the whole event going on. The second tower had not long been hit. Needless to say, I was glued to the box for many hours thereafter.
When I finally went to bed I left my missus a note (stuck to the TV) saying something along the lines of "turn on the news, terrible attack in the US, the world just changed"
