title: Getting current datetime using Calendar.getInstance() vs new GregorianCalendar()
body: <p>What might be the difference between getting datetime using </p>
  
  <p><code>Calendar.getInstance()</code> </p>
  
  <p>vs </p>
  
  <p><code>new GregorianCalendar()</code></p>
  
  <p>?</p>