Suin\RSSWriter\Item::pubDate PHP Method

    public function pubDate($pubDate)
    {
        $this->pubDate = $pubDate;
        return $this;
    }

$blogCommentChannel->url('https://blog.jacobemerick.com');
// todo depends on env
$blogCommentChannel->appendTo($blogCommentFeed);
$query = "\n    SELECT `comment_meta`.`id`, `comment_meta`.`date`, `comment`.`body`, `commenter`.`name`,\n           `post`.`title`, `post`.`category`, `post`.`path`\n    FROM `jpemeric_comment`.`comment_meta`\n    INNER JOIN `jpemeric_comment`.`comment` ON `comment`.`id` = `comment_meta`.`comment`\n    INNER JOIN `jpemeric_comment`.`commenter` ON `commenter`.`id` = `comment_meta`.`commenter` AND\n                                                 `commenter`.`trusted` = :trusted_commenter\n    INNER JOIN `jpemeric_comment`.`comment_page` ON `comment_page`.`id` = `comment_meta`.`comment_page` AND\n                                                    `comment_page`.`site` = :comment_site\n    INNER JOIN `jpemeric_blog`.`post` ON `post`.`path` = `comment_page`.`path` AND\n                                         `post`.`display` = :display_post\n    WHERE `comment_meta`.`display` = :active_comment\n    ORDER BY `comment_meta`.`date` DESC";
$bindings = ['trusted_commenter' => 1, 'comment_site' => 2, 'display_post' => 1, 'active_comment' => 1];
$activeBlogComments = $db->getRead()->fetchAll($query, $bindings);
foreach ($activeBlogComments as $blogComment) {
    $blogCommentItem = new Item();
    $blogCommentItem->title("Comment on '{$blogComment['title']}' from {$blogComment['name']}");
    $url = "https://blog.jacobemerick.com/{$blogComment['category']}/{$blogComment['path']}/";
    $url .= "#comment-{$blogComment['id']}";
    $blogCommentItem->url($url);
    $blogCommentItem->guid($url, true);
    $description = $blogComment['body'];
    $description = strip_tags($description);
    $description = strtok($description, "\n");
    if (strlen($description) > 250) {
        $description = wordwrap($description, 250);
        $description = strtok($description, "\n");
        if (substr($description, -1) != '.') {
            $description .= '…';
        }
    }
    $description = html_entity_decode($description);
    $description = trim($description);
    $blogCommentItem->description($description);
    $pubDate = new DateTime($blogComment['date']);
    $blogCommentItem->pubDate($pubDate->getTimestamp());
    $blogCommentItem->appendTo($blogCommentChannel);
}
$buildFeed($blogCommentFeed, 'blog', 'rss-comments');