diff --git a/test/util/strftime.js b/test/util/strftime.js
index 7cb3dfe24..060fdc54d 100644
--- a/test/util/strftime.js
+++ b/test/util/strftime.js
@@ -4,14 +4,16 @@ const expect = chai.expect;
 var t = require('../../src/util/strftime.js');
 
 describe('util/strftime', function() {
-    var now = new Date('2016-10-23T16:15:23');
+    var now = new Date('2016-10-24T00:15:23+08:00');
     it('should format week by %U', function() {
         expect(t(now, '%U')).to.equal('43');
     });
     it('should format locale date string', function() {
-        expect(t(now, '%Y-%m-%d')).to.equal(now.toLocaleDateString());
+        var date = now.toLocaleDateString('zh-CN');
+        expect(t(now, '%Y-%m-%d')).to.equal(date);
     });
     it('should format locale date string', function() {
-        expect(t(now, '%H:%M:%S')).to.equal(now.toLocaleTimeString());
+        var time = now.toLocaleTimeString('zh-CN');
+        expect(t(now, '%H:%M:%S')).to.equal(time);
     });
 });