diff --git a/pmcalendar.php b/pmcalendar.php
index 67500e0..06bec44 100644
--- a/pmcalendar.php
+++ b/pmcalendar.php
@@ -2001,7 +2001,7 @@ if ($act == 'newevent') {
             $("#endyear").val(time.getFullYear());
             $("#endmonth").val(time.getMonth() + 1);
 
-            var start = time.getFullYear() + "-"+moment(time.getMonth() + 1).startOf("month").format("MM-DD")+" " + '00:00:00'
+            var start = time.getFullYear() + "/"+moment(time.getMonth() + 1).startOf("month").format("MM/DD")+" " + '00:00:00'
             var startdate = new Date(start);
             var startmonth = Date.parse(startdate)/1000;