There are total 15 hours or 900 minutes from 5am to 8pm. In words, this duration is equal to fifteen hours or nine hundred minutes.
How many hours from
| 10AM to 6AM | 6AM to 11PM | 6PM to 11AM |
| 6PM to 7PM | 8AM to 6PM | 7PM to 10PM |
| 2AM to 12AM | 7PM to 12AM | 7PM to 8AM |
| 3AM to 5AM | 3PM to 11AM | 5PM to 12PM |
| 3PM to 4PM | 6AM to 8AM | 11AM to 5PM |
| 9PM to 8PM | 7PM to 11AM | 7AM to 12AM |
