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