$datef = __( 'M j, Y @ G:i' );
$stamp = __('Submitted on: <b>%1$s</b>');
$date = date_i18n( $datef, strtotime( $comment->comment_date ) );
$datef = __( 'M j, Y @ G:i' );
$stamp = __('Submitted on: <b>%1$s</b>');
$date = date_i18n( $datef, strtotime( $comment->comment_date ) );