title: Is it possible to know name of continent/country if we know timezone ID?
body: <p>I want to know the name of continent/country provided timezone id?
       For e.g.</p>
  
  <pre><code>System.out.println(TimeZone.getTimeZone("PDT"));
  
  I wanted answer as north america/america. 
  
  System.out.println(TimeZone.getTimeZone("GMT+05:30"));
  
  I wanted answer as asia/india.
  
  i am not getting the desired output.
  
  The reason of asking question :: I am storing in my database on server the timezone(PDT,GMT+05:30) as given by the mobile    
  device.Now i need to perform analytics , that my app was  accessed from which continent/country.
  </code></pre>
  
  <p>Help is appreciated...   </p>