There are total 20 hours or 1200 minutes from 1pm to 9am. In words, this duration is equal to twenty hours or one thousand two hundred minutes.
How many hours from
| 12PM to 5AM | 9PM to 5PM | 1AM to 5PM |
| 12PM to 1AM | 11PM to 7PM | 11AM to 11PM |
| 5PM to 8AM | 10PM to 8PM | 4AM to 2AM |
| 12AM to 2AM | 4AM to 9AM | 12PM to 6AM |
| 11AM to 3PM | 3PM to 2PM | 10PM to 11AM |
| 1AM to 1PM | 7AM to 6PM | 2PM to 5AM |
