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