Appends the GMT value of time to the gatekeeper parameter MODEL_CHECK if set to Y and if the configuration option ADD_DATE_PARM is also set to Y. Each time Creo ModelCHECK is run, the parameter MODEL_CHECK is updated with the date and time of the last run. When this option is set to the default value of N the GMT component of MODEL_CHECK is not appended to the value of MODEL_CHECK.