There are total 13 hours or 780 minutes from 1am to 2pm. In words, this duration is equal to thirteen hours or seven hundred eighty minutes.
How many hours from
| 12PM to 9AM | 11AM to 3PM | 10AM to 7AM |
| 1AM to 9AM | 7AM to 4PM | 5PM to 9AM |
| 9AM to 10PM | 12AM to 3AM | 12AM to 1AM |
| 6PM to 11PM | 10PM to 3AM | 2AM to 11PM |
| 9PM to 4AM | 7AM to 9PM | 9AM to 6PM |
| 2PM to 7PM | 7PM to 9PM | 9PM to 3PM |
