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