Bug 14084 Fix incorrect time for FB data in certain cases.

When local browser timezone is different than server's configured
timezone, fb data would be offset incorrectly. Sending
JSON date strings in place of timestamps fixes the issue.

kronolith/js/kronolith.js

@@ -6379,9 +6379,8 @@ KronolithCore = {
         div = new Element('div').setStyle({ position: 'relative', height: td.offsetHeight + 'px' });
         td.insert(div);
         $H(fb.b).each(function(busy) {
-            var from = new Date(), to = new Date(), left;
-            from.setTime(busy.key * 1000);
-            to.setTime(busy.value * 1000);
+            var left, from = Date.parse(busy.key).addSeconds(1),
+            to = Date.parse(busy.value).addSeconds(1);
             if (!end.isAfter(from) || to.isBefore(start)) {
                 return;
             }

kronolith/lib/FreeBusy.php

@@ -282,7 +282,13 @@ public static function toJson(Horde_Icalendar_Vfreebusy $fb)
         if (empty($b)) {
             $b = new StdClass();
         }
-        $json->b = $b;
+        $new = new StdClass();
+        foreach ($b as $from => $to) {
+            $from = new Horde_Date($from);
+            $to = new Horde_Date($to);
+            $new->{$from->toJson()} = $to->toJson();
+        }
+        $json->b = $new;
         return $json;
     }