The time from 2:15 PM to 6:00 PM is 3 hours and 45 minutes. To calculate this, you can count the hours from 2:15 to 6:00, which is 3 full hours to 5:15 PM, plus an additional 45 minutes to reach 6:00 PM.
10 hours
24 hours
48 hours.
15
It's 120 hours between 6pm Thursday until the following Tuesday at 6pm
From 8:15am to 6pm is 9 hours and 45 minutes.
1415 hours
72 hrs
9 hours
13 hours
11 hours
Four hours exactly.