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