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