There are total 15 hours or 900 minutes from 10pm to 1pm. In words, this duration is equal to fifteen hours or nine hundred minutes.
How many hours from
| 12PM to 3PM | 6PM to 8AM | 4PM to 4AM |
| 7AM to 4AM | 1PM to 11PM | 4AM to 3AM |
| 9PM to 7AM | 6PM to 7PM | 4PM to 6AM |
| 7AM to 8AM | 3AM to 6PM | 9PM to 4AM |
| 2PM to 1AM | 4PM to 1AM | 7PM to 2PM |
| 9AM to 5PM | 3PM to 7AM | 12AM to 7PM |
