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