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