8-2=6
3am to 2pm is 11 hours.
There are 7 hours between 7 am to 2pm
3am to 2pm is 11 hours.
7am to 2pm is 7 hour.
8pm to 7am is 11 hours.
There are 17 hours between 9pm and 2pm the following day.
From 8PM to 1PM (the next day) is 17 hours.
8pm
8:30am to 2pm is 5.5hours (5 hours 30 mins)
The hours from 7am to 2pm is 7hrs.
7 hours