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