Index: wp-includes/class-wp-xmlrpc-server.php
===================================================================
--- wp-includes/class-wp-xmlrpc-server.php	(revision 30479)
+++ wp-includes/class-wp-xmlrpc-server.php	(working copy)
@@ -1232,7 +1232,7 @@
 		}
 
 		if ( ! empty( $dateCreated ) ) {
-			$post_data['post_date'] = get_date_from_gmt( iso8601_to_datetime( $dateCreated ) );
+			$post_data['post_date'] = get_date_from_gmt( iso8601_to_datetime( $dateCreated, 'GMT' ) );
 			$post_data['post_date_gmt'] = iso8601_to_datetime( $dateCreated, 'GMT' );
 		}