Error Message:

An illegal time range has been supplied.

Explanation:

You typed an invalid time range.

User Action:

Retype the command with a valid time range. Use either the 12-hour format, with the numbers 0-12 and AM and PM, or the 24-hour format, with the numbers 0-24. Use a hyphen to separate the beginning and end of a time range, as in 9AM-4PM.