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