There are total 4 hours or 240 minutes from 9pm to 1am. In words, this duration is equal to four hours or two hundred forty minutes.
How many hours from
| 11AM to 1PM | 11PM to 6PM | 5PM to 8PM |
| 2AM to 11PM | 3AM to 11PM | 6AM to 5PM |
| 8AM to 9PM | 11AM to 10AM | 9PM to 6PM |
| 12AM to 10AM | 5PM to 2AM | 9PM to 4PM |
| 1PM to 2AM | 10PM to 2AM | 9AM to 2AM |
| 11PM to 2PM | 11AM to 2PM | 4PM to 1PM |
