There are total 23 hours or 1380 minutes from 8am to 7am. In words, this duration is equal to twenty-three hours or one thousand three hundred eighty minutes.
How many hours from
| 1AM to 8PM | 9AM to 6AM | 7AM to 6PM |
| 8AM to 4AM | 6AM to 11AM | 8PM to 6AM |
| 9PM to 4AM | 8PM to 9PM | 11PM to 6AM |
| 8AM to 3PM | 11PM to 7PM | 7AM to 3PM |
| 1AM to 7PM | 6AM to 3PM | 5PM to 7AM |
| 4PM to 2PM | 1PM to 8PM | 4PM to 9AM |
