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