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 9PM | 3PM to 4AM | 7PM to 2PM |
| 11AM to 1PM | 6AM to 2PM | 2PM to 6PM |
| 9PM to 8AM | 12PM to 2AM | 1PM to 11AM |
| 8AM to 6AM | 4PM to 5AM | 5PM to 5AM |
| 6PM to 8PM | 4AM to 9AM | 1AM to 10PM |
| 9PM to 1AM | 10PM to 10AM | 5AM to 9AM |
