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