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