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