Usage of i18n-datetime-behavior

I’m tring to leverage the i18n-datetime-behavior extension to correctly format dates between database (Y-m-d H:i:s) and display (d-m-Y H:i:s).

I modified my model by adding the behaviors as specified on the web page (

    public function behaviors()


        return array( 

            'data_primo_utilizzo' => array( 'class' => 'ext.DateTimeI18NBehavior'),

            'data_modifica' => array( 'class' => 'ext.DateTimeI18NBehavior'),



But then when I visit the detail view of an AR the date is still in database format.

What am I missing?