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