There are total 4 hours or 240 minutes from 1am to 5am. In words, this duration is equal to four hours or two hundred forty minutes.
How many hours from
| 8PM to 12PM | 1AM to 12AM | 7PM to 4AM |
| 11PM to 1PM | 2PM to 7AM | 9PM to 1AM |
| 5AM to 10AM | 7AM to 4AM | 5AM to 10AM |
| 2PM to 5AM | 6PM to 3PM | 3AM to 4AM |
| 2PM to 3AM | 9PM to 11AM | 11PM to 2AM |
| 11AM to 6AM | 8AM to 9PM | 12AM to 1PM |
