There are total 10 hours or 600 minutes from 1pm to 11pm. In words, this duration is equal to ten hours or six hundred minutes.
How many hours from
| 8PM to 11PM | 11PM to 8PM | 4PM to 9AM |
| 1AM to 2AM | 9PM to 7PM | 4PM to 3PM |
| 1AM to 12PM | 10PM to 1PM | 11AM to 12AM |
| 11PM to 9AM | 2PM to 10PM | 11AM to 7AM |
| 2AM to 6AM | 7PM to 3AM | 9AM to 6PM |
| 8AM to 5AM | 6PM to 9AM | 10AM to 4PM |
