Waits a specified number of seconds, displaying the number of remaining seconds as time passes, allowing the user to interrupt the waiting by pressing a key. Also known as delay or sleep.

Available in Windows Vista and later.

Examples:

Links:

$ timeout /?
TIMEOUT [/T] timeout [/NOBREAK] 

Description:
    This utility accepts a timeout parameter to wait for the specified
    time period (in seconds) or until any key is pressed. It also 
    accepts a parameter to ignore the key press. 

Parameter List:
    /T        timeout       Specifies the number of seconds to wait.
                            Valid range is -1 to 99999 seconds.

    /NOBREAK                Ignore key presses and wait specified time.

    /?                      Displays this help message.

NOTE: A timeout value of -1 means to wait indefinitely for a key press.

Examples:
    TIMEOUT /?
    TIMEOUT /T 10
    TIMEOUT /T 300 /NOBREAK
    TIMEOUT /T -1