title: RegExp for 0:59 to 99:59 or 0 to 99
body: <p>I want the strict regular expression for <code>0:59</code> to <code>99:59</code> Hours. It should allow <code>0</code> to <code>99</code> Hours.
  How could it be done.</p>
  
  <hr>
  
  <pre><code>/^([0-9]{1,2}(\:[0-5][0-9])?)$/
  </code></pre>
  
  <p>is working properly</p>