There are total 21 hours or 1260 minutes from 10am to 7am. In words, this duration is equal to twenty-one hours or one thousand two hundred sixty minutes.
How many hours from
| 10PM to 9AM | 10AM to 4AM | 4PM to 9PM |
| 1AM to 12PM | 5AM to 1PM | 2AM to 3PM |
| 7AM to 1PM | 9AM to 3PM | 6PM to 8AM |
| 5AM to 5PM | 4AM to 6AM | 4AM to 12AM |
| 1PM to 5AM | 1AM to 12PM | 7PM to 4AM |
| 2PM to 12PM | 3AM to 12AM | 12PM to 9AM |
