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