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