title: How can i run 90:00 "min" in 30 seconds?
body: <p>All i need to do is this:</p>
  
  <p>I have a football game (all written in pure js) which is 90:00 min.</p>
  
  <p>I need to show users 90 (90:00) min and this should be counted down with animation till 00:00 in 30 seconds time...</p>
  
  <p>What is the best way to approach this?
  Should i use some animation library?   </p>