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<!DOCTYPE html>
<html>
<body onload="startTime()">
<h2>JavaScript Clock</h2>
<div id="txt"></div>
<script>
function startTime() {
  const today = new Date();
  let h = today.getHours();
  let m = today.getMinutes();
  let s = today.getSeconds();
  m = checkTime(m);
  s = checkTime(s);
  document.getElementById('txt').innerHTML =  h + ":" + m + ":" + s;
  setTimeout(startTime, 1000);
}
function checkTime(i) {
  if (i < 10) {i = "0" + i};  // add zero in front of numbers < 10
  return i;
}
</script>
</body>
<!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_timing_clock by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 05 Sep 2022 14:29:33 GMT -->
</html>