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