There are total 16 hours or 960 minutes from 9am to 1am. In words, this duration is equal to sixteen hours or nine hundred sixty minutes.
How many hours from
| 11AM to 11PM | 10PM to 11PM | 7PM to 8PM |
| 5PM to 10AM | 2PM to 7PM | 2PM to 9AM |
| 12AM to 3PM | 10AM to 1PM | 1AM to 1PM |
| 7AM to 3AM | 10PM to 8PM | 1AM to 2PM |
| 6AM to 10AM | 5PM to 3PM | 2PM to 10PM |
| 4PM to 6AM | 11PM to 6AM | 6AM to 1PM |
