<video id="videoPlayer" controls>
  <source src="sample-video.mp4" type="video/mp4">
</video>
<p>Current Time: <span id="currentTime">0</span> seconds</p>

<script>
  var videoPlayer = document.getElementById("videoPlayer");
  var currentTimeDisplay = document.getElementById("currentTime");

  videoPlayer.ontimeupdate = function() {
    currentTimeDisplay.innerHTML = Math.floor(videoPlayer.currentTime);
  };
</script>