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