There are total 9 hours or 540 minutes from 1am to 10am. In words, this duration is equal to nine hours or five hundred forty minutes.
How many hours from
| 11AM to 4AM | 9PM to 4AM | 7PM to 1AM |
| 5PM to 10AM | 4PM to 8PM | 4PM to 12PM |
| 1AM to 9PM | 9PM to 7AM | 2AM to 7AM |
| 11AM to 6PM | 3PM to 7AM | 4AM to 5AM |
| 7AM to 6AM | 12PM to 6PM | 5AM to 3AM |
| 10AM to 7AM | 7PM to 1PM | 11AM to 10AM |
