Как вывести время в HTML?

function checkTime(i) { 
  if (i < 10) { 
    i = "0" + i; 
  } 
  return i; 
} 
 
function timeBegan() { 
  var today = new Date(); 
  var h = today.getHours(); 
  var m = today.getMinutes(); 
  var s = today.getSeconds(); 
 
  m = checkTime(m); 
  s = checkTime(s); 
  document.getElementById('timeNow').innerHTML = h + ":" + m + ":" + s; 
  t = setTimeout(function() { 
    timeBegan() 
  }, 500); 
} 
timeBegan();

<div id="timeNow"></div>

 var time = document.getElementById('my_time'); 
 setInterval(function(){ 
   var d = new Date(); 
   time.innerHTML = d.getHours() + ':' + d.getMinutes() + ':' + d.getSeconds()  
 }, 950);

<div id='my_time'></div>