diff --git a/Apollo/assets/js/directives/convert-words.js b/Apollo/assets/js/directives/convert-words.js
index e84107bd..53674596 100755
--- a/Apollo/assets/js/directives/convert-words.js
+++ b/Apollo/assets/js/directives/convert-words.js
@@ -169,4 +169,19 @@ app.filter('ucfirst', function() {
     return function(input) {
         return (!!input) ? input.charAt(0).toUpperCase() + input.substr(1).toLowerCase() : '';
     }
+});
+/*
+* service for session date
+* filter
+* */
+app.service('dateListDescService', function() {
+
+    this.getOrderByList = function(list) {
+       var listDetails = list.sort(function(a, b) {
+            a = new Date(a.givenDateObject);
+            b = new Date(b.givenDateObject);
+            return a >b ? -1 : a < b ? 1 : 0;
+        });
+        return listDetails;
+    }
 });
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