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