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