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