There are total 3 hours or 180 minutes from 10pm to 1am. In words, this duration is equal to three hours or one hundred eighty minutes.
How many hours from
| 4AM to 11PM | 10AM to 6AM | 2PM to 11PM |
| 1AM to 2AM | 1PM to 1AM | 9AM to 1AM |
| 9AM to 11AM | 4PM to 5AM | 12PM to 5PM |
| 1AM to 10PM | 4PM to 7AM | 2PM to 1PM |
| 7PM to 3PM | 5PM to 11PM | 7AM to 8PM |
| 8AM to 2AM | 6AM to 3PM | 9AM to 8PM |
