I am in the Central Time Zone here in the US. I go to work very early, as I’m a baker IRL and had no radio or TV on. The cafe is located in the public library though.
A little before 9:00AM local time the kitchen manager arrives and says he heard on the car radio that a plane had crashed into the WTC. Now he’d pranked me before so I told him that was a sick joke but he insisted that this time he was telling the truth. So we both, along with one other co-worker ran into the library’s main section where there were TV"s under those sound suppression hoods. We watched replays of the second plane hitting, and were horrified. The librarians were rushing around getting out books about New York and skyscrapers in general, anything that featured the WTC. They made a display, with city maps of NYC.
But then it was back to work. Slow as hell that day, but we were open, and nobody had their mind on the job.
I know a guy whose brother died in one of the towers. He was on a floor about where the plane struck, and couldn’t get out. But some way he managed to get a call through to his brother and at least they were able to speak before the brother died.