Milo: Pending swarming builds

appengine/cmd/milo/frontend/static/common/js/time.js

 // Copyright 2016 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 // A Series of time based utilites for Milo.
 
 
 (function(window) {
   'use strict';
 
   var milo = window.milo || {};
 
   /**
    * Given a Javascript parsable time string, return a time string in the user's
    * local timezone
    */
   milo.formatDate = function(dt) {
     if (!dt) {
-        return dt;
+        return null;
     }
     var shortDayNames = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
     var t = new Date(dt);
+    if (t.toString() == "Invalid Date") {
+      return null;
+    }
     var offset = -(new Date()).getTimezoneOffset();
     var offsetHr = Math.abs(Math.round(offset / 60));
     var offsetMin = Math.abs(Math.abs(offset) - (offsetHr * 60));
     if (offsetHr < 10) {
       offsetHr = '0' + offsetHr;
     }
     if (offsetMin < 10) {
       offsetMin = '0' + offsetMin;
     }
     var offsetStr = 'UTC';
@@ skipping 15 matching lines @@
     s += t.getFullYear() + '-' + month + '-' + date + ' ';
     s += t.toLocaleTimeString();
     s += ' (' + offsetStr + ')';
 
     return s;
   };
 
   window.milo = milo;
 
 }(window));