As of 9:00 Friday night, it's 16 hours.
From 10 PM Saturday to 8 AM Monday is a total of 10 hours. It includes 2 hours from 10 PM Saturday to midnight, and then 8 hours from midnight to 8 AM Monday.
From Saturday AM to Tuesday PM is a total of 58 hours. This is calculated by counting the full days between Saturday morning and Tuesday afternoon, which includes two full days (48 hours) plus the hours from Saturday morning to the end of Saturday (24 hours) and from Sunday to Tuesday PM (another 24 hours). Thus, it sums up to 58 hours.
From 3 PM on Friday to 3 PM on Sunday is a total of 48 hours. This is because there are 24 hours in a day, and from Friday 3 PM to Saturday 3 PM is 24 hours, and from Saturday 3 PM to Sunday 3 PM is another 24 hours, totaling 48 hours.
From 6 PM Friday to 6 PM Saturday is 24 hours. From 6 PM Saturday to 6 PM Sunday is another 24 hours, and then from 6 PM Sunday to 7 AM Monday is an additional 13 hours. In total, that adds up to 61 hours.
67 hours
From 10 PM Saturday to 8 AM Monday is a total of 10 hours. It includes 2 hours from 10 PM Saturday to midnight, and then 8 hours from midnight to 8 AM Monday.
From Saturday AM to Tuesday PM is a total of 58 hours. This is calculated by counting the full days between Saturday morning and Tuesday afternoon, which includes two full days (48 hours) plus the hours from Saturday morning to the end of Saturday (24 hours) and from Sunday to Tuesday PM (another 24 hours). Thus, it sums up to 58 hours.
From 3 PM on Friday to 3 PM on Sunday is a total of 48 hours. This is because there are 24 hours in a day, and from Friday 3 PM to Saturday 3 PM is 24 hours, and from Saturday 3 PM to Sunday 3 PM is another 24 hours, totaling 48 hours.
From 6 PM Friday to 6 PM Saturday is 24 hours. From 6 PM Saturday to 6 PM Sunday is another 24 hours, and then from 6 PM Sunday to 7 AM Monday is an additional 13 hours. In total, that adds up to 61 hours.
There are 53 hours between 8 am Saturday and 1 pm Tuesday. From 8 am Saturday to 8 am Monday is 48 hours, and then from 8 am Monday to 1 pm Tuesday is an additional 5 hours. Adding these together gives a total of 53 hours.
From 8 AM Saturday to 8 PM Tuesday is a total of 58 hours. This includes the full days of Saturday, Sunday, Monday, and up to 8 PM on Tuesday. Specifically, there are 36 hours from 8 AM Saturday to 8 AM Monday, plus 12 hours from 8 AM Monday to 8 PM Tuesday.
67 hours
72 hours from 3 PM Saturday afternoon would be 3 PM Tuesday afternoon. This is calculated by adding three full days (72 hours) to the starting point. Therefore, if you start at 3 PM on Saturday, you reach 3 PM on Tuesday.
16
There are 30 hours between 7 AM Saturday and 1 PM Monday. From 7 AM Saturday to 7 AM Sunday is 24 hours, and from 7 AM Sunday to 1 PM Monday is an additional 6 hours. Adding those together gives a total of 30 hours.
From Friday at 6 PM to Sunday at 6 PM is a total of 48 hours. This includes the full 24 hours of Saturday and the 24 hours from Friday evening to Saturday evening. Thus, the total duration is 48 hours.
72 hours after 3 PM Saturday afternoon would be 3 PM Tuesday afternoon. This is because 72 hours is equivalent to three full days, so adding three days to Saturday brings you to Tuesday.