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