There are total 1 hours or 60 minutes from 1am to 2am. In words, this duration is equal to one hours or sixty minutes.
How many hours from
| 7AM to 2PM | 5PM to 12AM | 11AM to 6PM |
| 9PM to 12AM | 5PM to 3AM | 2AM to 12PM |
| 2PM to 1AM | 8PM to 7PM | 10PM to 8PM |
| 6AM to 1PM | 2AM to 4PM | 1AM to 8PM |
| 9PM to 10AM | 11PM to 10PM | 6PM to 2AM |
| 2PM to 10PM | 1PM to 11PM | 5PM to 4PM |
