There are total 18 hours or 1080 minutes from 3am to 9pm. In words, this duration is equal to eighteen hours or one thousand eighty minutes.
How many hours from
| 1PM to 2PM | 4PM to 1PM | 5AM to 6PM |
| 10PM to 4PM | 8AM to 10PM | 6AM to 8AM |
| 10PM to 3PM | 10PM to 5AM | 8AM to 1PM |
| 1AM to 11AM | 2PM to 5PM | 7AM to 1AM |
| 8PM to 2AM | 11AM to 6AM | 11PM to 8AM |
| 6AM to 7PM | 3PM to 7PM | 1PM to 11AM |
