title: Date picker in Magento product custom option gives only date. Need date and time
body: <p>I add a <code>custom option</code> for my product.
  <code>Input type</code> for <code>custom option</code> is <strong>Date &amp; Time.</strong></p>
  
  <p>To avoid dropdown and display date picker in product page I change: </p>
  
  <p><code>Use JavaScript Calendar  to "yes"</code> in <code>System &gt; Configuration &gt; Catalog &gt; Catalog &gt; Date&amp;Time Custom Options &gt;</code> </p>
  
  <p>But the <code>datepicker gives date only</code> not time. <code>I need date and time.</code>The drop down box for select time is still shown. I want avoid this dropdown. </p>
  
  <p>Is there any way to give the datepicker both date and time.</p>
  
  <p><img src="https://i.stack.imgur.com/VGChq.png" alt="enter image description here"></p>
  
  <p><strong>Magento version 1.9.0.1</strong> </p>