Example of updating timer on the fly

timer.js

$(function() {
  const timer = $('.timer');
  timer.startTimer({ allowPause: true });

  setTimeout(() => {
    timer.trigger('click');
    timer.data('timeLeft', 30);
    timer.trigger('click');
  }, 3000);
});

/*
 * Try this with a <h1 class="timer" data-seconds-left="55"></h1> for example,
 * and you should see it updating to 30 seconds at the 52 second mark
 */