diff --git a/wp-includes/rest-api/class-wp-rest-server.php b/wp-includes/rest-api/class-wp-rest-server.php
index 4f5ae7650d..9d4a5fec05 100644
--- a/wp-includes/rest-api/class-wp-rest-server.php
+++ b/wp-includes/rest-api/class-wp-rest-server.php
@@ -1012,13 +1012,15 @@ class WP_REST_Server {
 	public function get_index( $request ) {
 		// General site data.
 		$available = array(
-			'name'           => get_option( 'blogname' ),
-			'description'    => get_option( 'blogdescription' ),
-			'url'            => get_option( 'siteurl' ),
-			'home'           => home_url(),
-			'namespaces'     => array_keys( $this->namespaces ),
-			'authentication' => array(),
-			'routes'         => $this->get_data_for_routes( $this->get_routes(), $request['context'] ),
+			'name'            => get_option( 'blogname' ),
+			'description'     => get_option( 'blogdescription' ),
+			'url'             => get_option( 'siteurl' ),
+			'home'            => home_url(),
+			'gmt_offset'      => get_option( 'gmt_offset' ),
+			'timezone_string' => get_option( 'timezone_string' ),
+			'namespaces'      => array_keys( $this->namespaces ),
+			'authentication'  => array(),
+			'routes'          => $this->get_data_for_routes( $this->get_routes(), $request['context'] ),
 		);
 
 		$response = new WP_REST_Response( $available );
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 67287551e0..a60afe9f26 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-alpha-40237';
+$wp_version = '4.8-alpha-40238';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.