7.75 hours
10 hours and 45 minutes.
945 pm to midnight is 2 hours, 15 minutes. Midnight to 830 am is 8 hours, 30 minutes. The total is 10 hours, 45 minutes.
7:45 am to 6:15 pm is 10 hours 15 minutes (101/4 hours)
From 9:45 AM to 5 PM OR 9:45 PM to 5 AM... the answer is 7 hours and 15 minutes !
From 8am to 6:15pm is 10 hours and 15 minutes.
There are 10.25+24k where k is an integer.
From 9:45am to 6:30pm is 8 hours and 45 minutes
6:15am to 5pm is 10 hours and 45 minutes.
From 6:15am to 1:30pm is 7 hours and 15 minutes.
There are 9 and 1/2 hours between 8:45 am and 6:15 pm.
IF they're both on the same day, then they're 5hours 10minutes apart.