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