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
| 5AM to 8AM | 4AM to 9AM | 9AM to 4PM |
| 7AM to 12PM | 12PM to 7AM | 11PM to 3AM |
| 12AM to 2PM | 2AM to 1AM | 2AM to 10AM |
| 7PM to 11AM | 11AM to 10AM | 8PM to 11PM |
| 7AM to 11PM | 6AM to 8PM | 9AM to 12PM |
| 2AM to 4AM | 9AM to 5PM | 4AM to 3PM |
