diff -r 000000000000 -r 6474c204b198 js/src/tests/ecma/Date/15.9.5.12-6.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/ecma/Date/15.9.5.12-6.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,43 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/**
+   File Name:          15.9.5.12.js
+   ECMA Section:       15.9.5.12
+   Description:        Date.prototype.getDay
+
+
+   1.   Let t be this time value.
+   2.   If t is NaN, return NaN.
+   3.   Return WeekDay(LocalTime(t)).
+
+   Author:             christine@netscape.com
+   Date:               12 november 1997
+*/
+
+var SECTION = "15.9.5.12";
+var VERSION = "ECMA_1";
+startTest();
+var TITLE   = "Date.prototype.getDay()";
+
+writeHeaderToLog( SECTION + " "+ TITLE);
+
+addTestCase( UTC_FEB_29_2000 );
+
+test();
+
+function addTestCase( t ) {
+  var start = TimeFromYear(YearFromTime(t));
+  var stop  = TimeFromYear(YearFromTime(t) + 1);
+
+  for (var d = start; d < stop; d += msPerDay)
+  {
+    new TestCase( SECTION,
+                  "(new Date("+d+")).getDay()",
+                  WeekDay((LocalTime(d))),
+                  (new Date(d)).getDay() );
+  }
+}