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