diff --git a/cli/sessionGc.php b/cli/sessionGc.php
new file mode 100644
index 0000000000000..4fe6e8a4fc7ee
--- /dev/null
+++ b/cli/sessionGc.php
@@ -0,0 +1,56 @@
+<?php
+/**
+ * @package    Joomla.Cli
+ *
+ * @copyright  Copyright (C) 2005 - 2017 Open Source Matters, Inc. All rights reserved.
+ * @license    GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+/**
+ * This is a CRON script to delete expired session data which should be called from the command-line, not the
+ * web. For example something like:
+ * /usr/bin/php /path/to/site/cli/sessionGc.php
+ */
+
+// Initialize Joomla framework
+const _JEXEC = 1;
+
+// Load system defines
+if (file_exists(dirname(__DIR__) . '/defines.php'))
+{
+	require_once dirname(__DIR__) . '/defines.php';
+}
+
+if (!defined('_JDEFINES'))
+{
+	define('JPATH_BASE', dirname(__DIR__));
+	require_once JPATH_BASE . '/includes/defines.php';
+}
+
+// Get the framework.
+require_once JPATH_LIBRARIES . '/import.legacy.php';
+
+// Bootstrap the CMS libraries.
+require_once JPATH_LIBRARIES . '/cms.php';
+
+/**
+ * Cron job to trash expired session data.
+ *
+ * @since  __DEPLOY_VERSION__
+ */
+class SessionGc extends JApplicationCli
+{
+	/**
+	 * Entry point for the script
+	 *
+	 * @return  void
+	 *
+	 * @since   __DEPLOY_VERSION__
+	 */
+	public function doExecute()
+	{
+		JFactory::getSession()->gc();
+	}
+}
+
+JApplicationCli::getInstance('SessionGc')->execute();
diff --git a/libraries/src/Session/Session.php b/libraries/src/Session/Session.php
index a2b3a6da83cb1..fbcb3059067be 100644
--- a/libraries/src/Session/Session.php
+++ b/libraries/src/Session/Session.php
@@ -834,6 +834,18 @@ public function close()
 		$this->_state = 'inactive';
 	}
 
+	/**
+	 * Delete expired session data
+	 *
+	 * @return  boolean  True on success, false otherwise.
+	 *
+	 * @since   __DEPLOY_VERSION__
+	 */
+	public function gc()
+	{
+		return $this->_store->gc($this->getExpire());
+	}
+
 	/**
 	 * Set the session handler
 	 *