There are total 5 hours or 300 minutes from 8pm to 1am. In words, this duration is equal to five hours or three hundred minutes.
How many hours from
| 10AM to 7PM | 11PM to 4AM | 6AM to 12PM |
| 2PM to 7AM | 2AM to 6AM | 5AM to 12PM |
| 1AM to 11PM | 10PM to 4PM | 10PM to 1PM |
| 5PM to 12AM | 7AM to 11PM | 9AM to 3AM |
| 8AM to 6AM | 2AM to 12AM | 9AM to 10PM |
| 12PM to 7PM | 12PM to 2AM | 8PM to 7PM |
