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