There are total 21 hours or 1260 minutes from 4pm to 1pm. In words, this duration is equal to twenty-one hours or one thousand two hundred sixty minutes.
How many hours from
| 5PM to 3AM | 10AM to 4PM | 5AM to 8PM |
| 8AM to 8PM | 7AM to 5AM | 10AM to 2AM |
| 8AM to 11AM | 2PM to 9PM | 3PM to 9AM |
| 5AM to 4PM | 11AM to 7AM | 12PM to 4PM |
| 12AM to 9PM | 2AM to 1PM | 8PM to 6PM |
| 6PM to 3AM | 2AM to 9AM | 1AM to 2PM |
