There are total 15 hours or 900 minutes from 1am to 4pm. In words, this duration is equal to fifteen hours or nine hundred minutes.
How many hours from
| 3AM to 1PM | 8AM to 12PM | 9AM to 11AM |
| 3PM to 10AM | 3AM to 2PM | 11AM to 1PM |
| 3AM to 11PM | 3PM to 9PM | 1PM to 9PM |
| 6AM to 8AM | 10AM to 1AM | 3PM to 2PM |
| 6PM to 3PM | 2AM to 8AM | 3PM to 7PM |
| 12PM to 3PM | 4AM to 3AM | 2AM to 11PM |
