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