title: make a countdown timer
body: <p>I want to make a countdown timer of New year from current time in android...</p>
  
  <pre><code>Calendar thatDay = Calendar.getInstance();
  thatDay.set(Calendar.DAY_OF_MONTH,1);
  thatDay.set(Calendar.MONTH,0); // 0-11 so 1 less
  thatDay.set(Calendar.YEAR, 2014);
  
  Calendar today = Calendar.getInstance();
  long diff =  thatDay.getTimeInMillis() - today.getTimeInMillis(); 
  </code></pre>
  
  <p>Now how to convert this <strong>diff</strong> into day,hour,minute,seconds format? please help</p>