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