title: DateTime Format check
body: <p>Quick Question</p>
  
  <p>Value passed in <code>ActivationDate</code> or <code>ExpirationDate</code> string, must be in either of the two formats stated below:Format 1:<code>YYYY-MM-DD</code>  &amp; Format 2: <code>YYYY-MM-DD HH:MM</code>
  If the date values are not in either of the above format, then it should report back appropriate error message.</p>
  
  <p>Any clue? Thanks in advance</p>