--- a/google_analytics_reports/GAFeed.lib.inc
+++ b/google_analytics_reports/GAFeed.lib.inc
@@ -327,6 +327,9 @@ class GAFeed {
       /* Assume a Unix timestamp */
       $start_date = date('Y-m-d', $params['start_date']);
     }
+    else {
+      $start_date = $params['start_date'];
+    }
 
     $parameters['start-date'] = $start_date;
 
@@ -337,6 +340,9 @@ class GAFeed {
       /* Assume a Unix timestamp */
       $end_date = date('Y-m-d', $params['end_date']);
     }
+    else {
+      $end_date = $params['end_date'];
+    }
 
     $parameters['end-date'] = $end_date;
 
@@ -420,4 +426,4 @@ class GAFeed {
     $this->totals = $totals;
     $this->results = $results;
   }
-}
\ No newline at end of file
+}