title: Multiple custome date format for one column?
body: <p>Can we put up a OR command for custom time in one column?
  I have multiple time formats in one column of excel. For eg:</p>
  
  <pre><code>Timing
  30 min
  31 sec
  4 min 20 sec  
  1 hr 2 min
  3 hr
  1 hr 23 min 30 sec
  </code></pre>
  
  <p>I want to convert it to time format: <code>hh:mm:ss</code> so that i can calculate average from all times. How can I achieve it?</p>