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