diff --git a/wp-admin/includes/class-wp-upgrader.php b/wp-admin/includes/class-wp-upgrader.php
index 6db2c27725..e46594eb0e 100644
--- a/wp-admin/includes/class-wp-upgrader.php
+++ b/wp-admin/includes/class-wp-upgrader.php
@@ -1679,7 +1679,7 @@ class File_Upload_Upgrader {
 			$this->id = wp_insert_attachment( $object, $file['file'] );
 
 			// schedule a cleanup for 2 hours from now in case of failed install
-			wp_schedule_single_event( time() + 7200, 'upgrader_scheduled_cleanup', array( $this->id ) );
+			wp_schedule_single_event( time() + 2 * HOUR_IN_SECONDS, 'upgrader_scheduled_cleanup', array( $this->id ) );
 
 		} elseif ( is_numeric( $_GET[$urlholder] ) ) {
 			// Numeric Package = previously uploaded file, see above.
diff --git a/wp-admin/includes/theme.php b/wp-admin/includes/theme.php
index ab665f8153..d141a39c4b 100644
--- a/wp-admin/includes/theme.php
+++ b/wp-admin/includes/theme.php
@@ -238,7 +238,7 @@ function get_theme_feature_list( $api = true ) {
 		return $features;
 
 	if ( !$feature_list = get_site_transient( 'wporg_theme_feature_list' ) )
-		set_site_transient( 'wporg_theme_feature_list', array(), 10800);
+		set_site_transient( 'wporg_theme_feature_list', array(), 3 * HOUR_IN_SECONDS );
 
 	if ( !$feature_list ) {
 		$feature_list = themes_api( 'feature_list', array() );
@@ -249,7 +249,7 @@ function get_theme_feature_list( $api = true ) {
 	if ( !$feature_list )
 		return $features;
 
-	set_site_transient( 'wporg_theme_feature_list', $feature_list, 10800 );
+	set_site_transient( 'wporg_theme_feature_list', $feature_list, 3 * HOUR_IN_SECONDS );
 
 	$category_translations = array(
 		'Colors'   => __( 'Colors' ),