diff --git a/htdocs/core/js/datepicker.js.php b/htdocs/core/js/datepicker.js.php
index a763533f9b3..3de57f0543f 100644
--- a/htdocs/core/js/datepicker.js.php
+++ b/htdocs/core/js/datepicker.js.php
@@ -119,7 +119,9 @@ $(document).ready(function() {
 	$.datepicker.setDefaults({
 		autoSize: true,
 		changeMonth: true,
-		changeYear: true
+		changeYear: true,
+		altField: '#timestamp',
+		altFormat: '@'			// Gives a timestamp dateformat
 	});
 });