There are total 15 hours or 900 minutes from 7am to 10pm. In words, this duration is equal to fifteen hours or nine hundred minutes.
How many hours from
| 11AM to 5PM | 8PM to 11AM | 4AM to 4PM |
| 3PM to 11AM | 3PM to 6PM | 11PM to 1PM |
| 1AM to 11AM | 9AM to 4AM | 10AM to 12AM |
| 3AM to 3PM | 4PM to 2PM | 4PM to 10PM |
| 9AM to 5PM | 10AM to 7PM | 1PM to 3PM |
| 3AM to 8PM | 6PM to 2PM | 2PM to 2AM |
