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