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