title: How to find difference between two dates which is in string format in android
body: <pre><code>Calendar zCalendarL = Calendar.getInstance(); 
  SimpleDateFormat zDateFormatL = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
  
  String DateTime="2013/02/15 15:05:01";
  String zUpdatedDateTimeG =zDateFormatL.format(DateTime);
  
  String zCurrentDateTimeL=zDateFormatL.format(zCalendarL.getTime());
  </code></pre>
  
  <p>I need to know the date time between zCurrentDateTimeL and zUpdatedDateTimeG </p>
  
  <p>How to do it?</p>