There are total 17 hours or 1020 minutes from 4am to 9pm. In words, this duration is equal to seventeen hours or one thousand twenty minutes.
How many hours from
| 12AM to 1AM | 8AM to 10PM | 6PM to 10PM |
| 3PM to 8AM | 11PM to 8PM | 10PM to 11AM |
| 12AM to 1PM | 1PM to 8AM | 5AM to 10AM |
| 11PM to 6PM | 8AM to 11PM | 4PM to 10AM |
| 4AM to 7AM | 1AM to 10PM | 10AM to 11AM |
| 2AM to 12PM | 5PM to 1AM | 12PM to 4PM |
