There are total 2 hours or 120 minutes from 1am to 3am. In words, this duration is equal to two hours or one hundred twenty minutes.
How many hours from
| 10PM to 7PM | 6AM to 8AM | 10PM to 6AM |
| 6AM to 10PM | 9PM to 4PM | 10AM to 9AM |
| 1AM to 2PM | 6AM to 1AM | 1PM to 12PM |
| 8PM to 3AM | 8PM to 4PM | 12AM to 2PM |
| 3AM to 6PM | 2PM to 11PM | 11PM to 3PM |
| 5AM to 10AM | 7PM to 6AM | 5PM to 6AM |
