Four pm means 4 o'clock in the afternoon. 10:15 pm means a quarter past ten in the evening. So, there are 6 hours and 15 minutes in between.
NO
If they're both on the same date, then they mark a period of 21/2 hours.
From 7:30 AM to 4:00 PM is a total of 8 hours and 30 minutes. To break it down, there are 8 hours from 7:30 AM to 3:30 PM, plus an additional 30 minutes from 3:30 PM to 4:00 PM.
From 5:30 AM to 4:00 PM is a total of 10 hours and 30 minutes. This can be calculated by counting the hours from 5:30 AM to 4:00 PM. Specifically, that's 10 hours from 5:30 AM to 3:30 PM, plus an additional 30 minutes to reach 4:00 PM.
From 7:45 AM to 4:00 PM is a total of 8 hours and 15 minutes. To break it down, there are 8 hours from 7:45 AM to 3:45 PM, plus an additional 15 minutes from 3:45 PM to 4:00 PM. Therefore, the total duration is 8 hours and 15 minutes.
12 hours
12 hours
12 Hours ! There are 12 hours in the AM and 12 hours in the PM !
From midnight (am) to Noon (pm) is 12 hours.
2.5 hours
2 hours.
6 hours.