diff --git a/tasks/util/common.js b/tasks/util/common.js
index 2ca4f4fe87e..b9330febd56 100644
--- a/tasks/util/common.js
+++ b/tasks/util/common.js
@@ -44,8 +44,7 @@ exports.doesFileExist = function(filePath) {
 exports.formatTime = function(date) {
     return [
         date.toLocaleDateString(),
-        date.toLocaleTimeString(),
-        date.toString().match(/\(([A-Za-z\s\u4E00-\u9FCC].*)\)/)[1]  // fix Chinese datetime string error. #1630
+        date.toLocaleTimeString()
     ].join(' ');
 };