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