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