Update Post Title + Slug with Timestamp converted to Date

function ttd_save_data_action($post_id, $form_data){
            // Change your CRED Form "ID" accordingly below
            if ($form_data['id']==ID){

                //Declare the content of your variables, change "your_custom_field_slug" accordingly
                $custom_value = get_post_meta( $post_id, 'wpcf-your_custom_field_slug', true );//get posts' Date field value (timestamp)
                $custom_title = gmdate("m-d-Y", $custom_value);//convert timestamp to m-d-y for output
                //collect data and define new title
                $my_post = array(
                    'ID'               => $post_id,
                    'post_title'   => $custom_title,
                    'post_name' => $custom_title,

                );

                // Update the post into the database
                wp_update_post( $my_post );

            }
        }
    add_action('cred_save_data', 'ttd_save_data_action',10,2);