diff --git a/lib/private/Server.php b/lib/private/Server.php
index 7fe20561af..bbe6b88876 100644
--- a/lib/private/Server.php
+++ b/lib/private/Server.php
@@ -837,8 +837,7 @@ class Server extends ServerContainer implements IServerContainer {
 	}
 
 	/**
-	 * For internal use only
-	 *
+	 * @internal For internal use only
 	 * @return \OC\SystemConfig
 	 */
 	public function getSystemConfig() {
@@ -1180,7 +1179,7 @@ class Server extends ServerContainer implements IServerContainer {
 		return $this->query('MountManager');
 	}
 
-	/*
+	/**
 	 * Get the MimeTypeDetector
 	 *
 	 * @return \OCP\Files\IMimeTypeDetector
diff --git a/lib/public/IServerContainer.php b/lib/public/IServerContainer.php
index de48daeef8..65754f993f 100644
--- a/lib/public/IServerContainer.php
+++ b/lib/public/IServerContainer.php
@@ -519,4 +519,16 @@ interface IServerContainer {
 	 * @since 9.0.0
 	 */
 	public function getContentSecurityPolicyManager();
+
+	/**
+	 * @return \OCP\IDateTimeZone
+	 * @since 8.0.0
+	 */
+	public function getDateTimeZone();
+
+	/**
+	 * @return \OCP\IDateTimeFormatter
+	 * @since 8.0.0
+	 */
+	public function getDateTimeFormatter();
 }