/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

import java.time.* ;

/* 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
	{
        System.out.println(
		    LocalTime.of( 8 , 30 ).minus( Duration.ofHours( 9 ) )
        );
	}
}