/* 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
	{
        ZoneId z = ZoneId.of( "America/Montreal" );
		ZonedDateTime zdtStart = ZonedDateTime.now( z );
        ZonedDateTime zdtStop = zdtStart.plusHours( 3 ).plusMinutes( 7 );

        Duration d = Duration.between( zdtStart , zdtStop );

        System.out.println( zdtStart + "/" + zdtStop );
        System.out.println( d );
	}
}