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