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