/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.time.*;
import java.time.zone.ZoneRules;
 
/* 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
	{
        int year = 1947;
        int month = 2;
        int day = 23;
        LocalDate localDate = LocalDate.of( year , month , day );
 
        LocalTime beforeJump = LocalTime.of( 1 , 0 );
        LocalTime afterJump = LocalTime.of( 4 , 0 );
 
        ZoneId z = ZoneId.of( "Europe/Prague" );
 
        ZonedDateTime zdtBeforeJump = ZonedDateTime.of( localDate , beforeJump , z );
        ZonedDateTime zdtAfterJump = ZonedDateTime.of( localDate , afterJump , z );
 
        System.out.println( "zdtBeforeJump.toString() = " + zdtBeforeJump );
        System.out.println( "zdtAfterJump.toString() = " + zdtAfterJump );
 
        ZoneRules rules = z.getRules();
        ZoneOffset offsetBeforeJump = rules.getOffset( zdtBeforeJump.toInstant() );
        ZoneOffset offsetAfterJump = rules.getOffset( zdtAfterJump.toInstant() );
 
        System.out.println( "offsetBeforeJump.toString() = " + offsetBeforeJump );
        System.out.println( "offsetAfterJump.toString() = " + offsetAfterJump );
	}
}

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