If it's 9am then 11pm was 10 hours ago If it's 9pm then 11am was 10 hours ago
72
12 hours.
On the same morning there are 3 hours from 8am to 11am
The plane takes off at 9am. 9am to 10am is one hour. 10am to 11am is one hour. 11am to noon is one hour. The plane arrives at London at noon.
2 hours
21
4 hours
5 Hours
6 hours
9 hours
4