title: re-Printing Chronometer value gives Integer value instead of String
body: <p>I am trying to pull a String value equal to the moment the chronometer stops as in &quot;01:21&quot; but the elapsed time gives an integer value, as in &quot;11322&quot;.</p>
  <pre><code>val chronometer = findViewById&lt;Chronometer&gt;(R.id.chronometer)
  chronometer.base = SystemClock.elapsedRealtime()
  chronometer.format = &quot;%s&quot;
  chronometer.start()
  button.setOnClickListener {
      val elapsedTime = SystemClock.elapsedRealtime() - chronometer.base
      header.text = elapsedtime.toString()
      Toast.makeText(this,&quot;$elapsedTime&quot;,Toast.LENGTH_SHORT).show()
  }
  </code></pre>