There are total 23 hours or 1380 minutes from 1am to 12am. In words, this duration is equal to twenty-three hours or one thousand three hundred eighty minutes.
How many hours from
| 1AM to 2AM | 4PM to 5PM | 12PM to 10AM |
| 5PM to 9AM | 2PM to 11PM | 2AM to 3PM |
| 12PM to 6AM | 5AM to 4PM | 12PM to 2PM |
| 9PM to 3AM | 4PM to 9PM | 8AM to 1AM |
| 12AM to 4AM | 12PM to 10AM | 5AM to 7AM |
| 6PM to 1PM | 12PM to 6AM | 9PM to 12AM |
