There are total 5 hours or 300 minutes from 8am to 1pm. In words, this duration is equal to five hours or three hundred minutes.
How many hours from
| 11AM to 10PM | 1PM to 2AM | 1PM to 5AM |
| 8AM to 1PM | 5PM to 1AM | 12AM to 9PM |
| 10AM to 5AM | 9PM to 7PM | 5AM to 8AM |
| 3AM to 7PM | 10PM to 5AM | 5PM to 10AM |
| 3PM to 9AM | 12PM to 6PM | 9PM to 3PM |
| 8PM to 2AM | 10AM to 7AM | 12AM to 6PM |
