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