There are total 21 hours or 1260 minutes from 1pm to 10am. In words, this duration is equal to twenty-one hours or one thousand two hundred sixty minutes.
How many hours from
| 4AM to 3AM | 11AM to 6AM | 5AM to 11AM |
| 4AM to 7PM | 4PM to 7AM | 11PM to 4PM |
| 8PM to 2PM | 5PM to 1AM | 4AM to 6PM |
| 1PM to 6PM | 1PM to 8AM | 8PM to 1AM |
| 6PM to 3AM | 9AM to 7AM | 4PM to 8AM |
| 4AM to 10AM | 9AM to 10PM | 6AM to 8AM |
