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