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