Implemented workaround change noted in issue 512.

QuestHelper/utility.lua

@@ -1,5 +1,7 @@
 function QuestHelper_GetTime()
-  return debugprofilestop() / 1000
+	if IsMacClient() then return debugprofilestop()
+	else return debugprofilestop() / 1000
+	end
 end
 
 local GetTime = QuestHelper_GetTime