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