/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.text.SimpleDateFormat;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
   public static void main(String[] args) throws java.lang.Exception
   {
      printDuration();
   }
 
   private static String formatDuration(final long duration) {
      final long hh = duration / 1000 / 3600;
      final long mm = duration / 1000 % 3600 / 60;
      final long ss = duration / 1000 % 3600 % 60;
      return hh + "h" + ":" + mm + "m" + ":" + ss + "s";
   }
 
   private static void printDuration() throws Exception {
      SimpleDateFormat PARSE_FORMAT = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
      long dayFrom = PARSE_FORMAT.parse("11/02/2014 00:00:00").getTime();
      long dayTo = PARSE_FORMAT.parse("11/03/2014 23:59:59").getTime();
      System.out.println(formatDuration(dayTo - dayFrom));
   }
}

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