diff --git a/airtime_mvc/application/models/ShowInstance.php b/airtime_mvc/application/models/ShowInstance.php
index db81782be..7e21d1376 100644
--- a/airtime_mvc/application/models/ShowInstance.php
+++ b/airtime_mvc/application/models/ShowInstance.php
@@ -610,9 +610,10 @@ class Application_Model_ShowInstance {
         $interval = $start->diff($end);
         $days = $interval->format("%d");
         $hours = sprintf("%02d" ,$interval->format("%h"));
-        
+
         if ($days > 0) {
             $totalHours = $days * 24 + $hours;
+            //$interval object does not have milliseconds so hard code to .00
             $returnStr = $totalHours . ":" . $interval->format("%I:%S") . ".00";
         } else {
             $returnStr = $hours . ":" . $interval->format("%I:%S") . ".00";