<div><strong>Şimdi</strong> sipariş ver, <strong class="js-countdown-shipping"></strong> içinde kargoya verelim!</div>

<script type="text/javascript">
         var current = new Date();
var end = new Date(current.getTime() + 550*286400);

var countdown = setInterval(function () {
  if(current != new Date){
    current = new Date();
    var diff = {}
    var tmp = end - current;

    tmp = Math.floor(tmp/1000);
    diff.sec = tmp % 60;

    tmp = Math.floor((tmp-diff.sec)/60);
    diff.min = tmp % 60;

    tmp = Math.floor((tmp-diff.min)/60);
    diff.hour = tmp % 24;

    $('.js-countdown-shipping').text(diff.hour + " saat " + diff.min + " dakika " + diff.sec + " saniye");
  }
}, 1000);
      </script>

div{
  width: 550px;
  margin: 30px auto;
  text-align: left;
}