There are total 15 hours or 900 minutes from 6am to 9pm. In words, this duration is equal to fifteen hours or nine hundred minutes.
How many hours from
| 2AM to 10AM | 9PM to 3PM | 6AM to 5AM |
| 12AM to 2AM | 10PM to 5AM | 1AM to 12AM |
| 3PM to 7PM | 6AM to 12PM | 5PM to 10AM |
| 4AM to 6PM | 11AM to 7PM | 1AM to 5PM |
| 1AM to 2PM | 1AM to 1PM | 6AM to 6PM |
| 9PM to 4AM | 4PM to 7AM | 7PM to 3AM |
