There are total 17 hours or 1020 minutes from 8am to 1am. In words, this duration is equal to seventeen hours or one thousand twenty minutes.
How many hours from
| 9PM to 11PM | 10PM to 4AM | 1PM to 3PM |
| 1AM to 4PM | 5PM to 8AM | 8PM to 6PM |
| 12PM to 11AM | 1AM to 10AM | 3AM to 12AM |
| 4PM to 4AM | 9AM to 5AM | 8AM to 9PM |
| 12PM to 11AM | 8PM to 3AM | 10PM to 8PM |
| 10PM to 12PM | 7PM to 4AM | 3PM to 9PM |
