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