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