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