Update date parse example

1-js/05-data-types/10-date/article.md

@@ -39,7 +39,13 @@ To create a new `Date` object call `new Date()` with one of the following argume
 
     ```js run
     let date = new Date("2017-01-26");
-    alert(date); // Thu Jan 26 2017 ...
+    alert(date);
+    // The time portion of the date is assumed to be midnight GMT and 
+    // is adjusted according to the timezone the code is run in
+    // So the result could be
+    // Thu Jan 26 2017 11:00:00 GMT+1100 (Australian Eastern Daylight Time)
+    // or
+    // Wed Jan 25 2017 16:00:00 GMT-0800 (Pacific Standard Time)
     ```
 
 `new Date(year, month, date, hours, minutes, seconds, ms)`