There are total 13 hours or 780 minutes from 1pm to 2am. In words, this duration is equal to thirteen hours or seven hundred eighty minutes.
How many hours from
| 1PM to 9AM | 5PM to 8AM | 9PM to 10PM |
| 5PM to 6PM | 6PM to 10PM | 7AM to 9AM |
| 2PM to 10AM | 9AM to 10PM | 6AM to 3AM |
| 4PM to 5AM | 4AM to 2PM | 3AM to 12AM |
| 2AM to 10AM | 10AM to 11AM | 8PM to 9PM |
| 8AM to 5AM | 11AM to 12AM | 11AM to 8PM |
