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