Error Message:

parameter is not a recognized hour.

Explanation:

You specified an hour in a format that could not be recognized. The hour can be a number from 0 to 12 in 12-hour format or 0 to 24 in 24-hour format. If you use the 12-hour format, you must specify either AM or PM for each time.

User Action:

Retype the command with the correct hour format.