$config = $this->app->make('config');
        if (!$config->has('app.server_timezone')) {
            // There is no server timezone set.
            $config->set('app.server_timezone', @date_default_timezone_get() ?: 'UTC');
        }
        @date_default_timezone_set($config->get('app.server_timezone'));
    }
 
    protected function initializeSiteTimezone()
    {
        $siteConfig = $this->app->make('site')->getSite()->getConfigRepository();
 
        if (!$siteConfig->has('timezone')) {
            // There is no timezone set.
            $siteConfig->set('timezone', @date_default_timezone_get());
        }
    }
 
    /**
     * @deprecated Splitted into initializeSystemTimezone and initializeSiteTimezone
     */
    protected function initializeTimezone()
    {