three
13:00 - 10:00 = 03:00
From 1:30 PM to 10:00 PM is 8 hours and 30 minutes. To calculate, you can count the hours from 1:30 PM to 10:00 PM, which includes the full hours from 2 PM to 10 PM (8 hours) plus the additional 30 minutes from 1:30 PM to 2 PM.
From 1 PM to 10 PM, there are 9 hours. This is calculated by subtracting 1 from 10, which gives you 9.
1 hour, 10 minutes
Assuming this is all in the same day, 8:30 am to 10 pm is 13 and 1/2 hours 8:30 pm to 10 pm is 3 and 1/2 hours
10 pm Thursday to 1 pm Monday should be 87 hours: 10 pm Thursday to Midnight (12 am) Friday = 2 hours Friday = 24 hours Saturday = 24 hours Sunday = 24 hours Monday Midnight (12 am) to Noon (12 pm) = 12 hours Monday Noon (12 pm) to 1 pm = 1 hour Total = 87 hours.
From 11 AM to 9 PM is a duration of 10 hours. You can calculate this by counting the hours from 11 AM to 12 PM (1 hour), then from 12 PM to 9 PM (8 hours), which totals 1 + 8 = 9 hours. However, since 9 PM is included, the total is 10 hours.
The time from 11 AM to 9 PM is 10 hours. You can calculate this by counting the hours from 11 AM to 12 PM (1 hour), then from 12 PM to 9 PM (8 hours), giving a total of 1 + 8 = 9 hours.
10 & 1/2
10 and 1/2
3 hours without it being more than a day
21 hours
3 hours