function clock()
    {
        window.setInterval(dateUpdate, 1000);

        function dateUpdate()
        {
            var date = new Date();
            var dateLocate = date.toLocaleString()
            var paragraph = window.document.querySelector("#data");
            paragraph.textContent = dateLocate;
        }
     }

window.addEventListener("load", clock);

function clock()
{
     var date = new Date();
     var dateLocate = date.toLocaleString()
     var paragraph = window.document.querySelector("#data");

  window.setInterval(dateUpdate, 1000);

  function dateUpdate()
  {
      paragraph.textContent = dateLocate;
  }
}

window.addEventListener("load", clock);