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