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