diff --git a/main/lib/urb.js b/main/lib/urb.js
index 46db0d45c..7fbb4c7f0 100644
--- a/main/lib/urb.js
+++ b/main/lib/urb.js
@@ -91,12 +91,15 @@ window.urb.unsubscribe = function(params,cb) {
 window.urb.util = {
   toDate: function (dat){
     var mils = Math.floor((0x10000 * dat.getUTCMilliseconds()) / 1000).toString(16)
+    function pad(num, str){
+      return ((new Array(num + 1)).join('0') + str).substr(-num,num)
+    }
     return  '~' + dat.getUTCFullYear() + 
             '.' + (dat.getUTCMonth() + 1) + 
             '.' + dat.getUTCDate() + 
-           '..' + dat.getUTCHours() + 
-            '.' + dat.getUTCMinutes() + 
-            '.' + dat.getUTCSeconds() + 
-           '..' + ('0000' + mils).substr(-4, 4)
+           '..' + pad(2, dat.getUTCHours()) + 
+            '.' + pad(2, dat.getUTCMinutes()) + 
+            '.' + pad(2, dat.getUTCSeconds()) + 
+           '..' + pad(4, mils)
   }
 }