8 hours
Friday 11pm to Monday 11pm is exactly 3 days or 72 hours.
4pm to midnight is 8 hours.
6 hours
10
That is 8.5 hours
7 hours
15
12am to 4pm is 16 hours.
6 hours from 4pm to 10pm
Friday 11pm to Monday 11pm is exactly 3 days or 72 hours.
7am to 4pm is 9 hours.
It is 12 hours from 4pm to 4am.
4pm to midnight is 8 hours.
10am to 4pm is a period of six hours.
There are 72 + 168n hours where n is an integer.
19 hours
Two hours