import java.util.Calendar;
import java.util.Date;
public class DeadTime {
public static void main(String[] args) {
Calendar everyDayByeTime = Calendar.getInstance();
everyDayByeTime.set(Calendar.HOUR_OF_DAY,17);
everyDayByeTime.set(Calendar.MINUTE,30);
everyDayByeTime.set(Calendar.SECOND,0);
while(!everyDayByeTime.getTime().equals(new Date())){
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY,everyDayByeTime.get(Calendar.HOUR_OF_DAY)-calendar.get(Calendar.HOUR_OF_DAY));
calendar.set(Calendar.MINUTE,everyDayByeTime.get(Calendar.MINUTE)-calendar.get(Calendar.MINUTE));
calendar.set(Calendar.SECOND,everyDayByeTime.get(Calendar.SECOND)-calendar.get(Calendar.SECOND));
System.out.println(calendar.getTime());
}
}
}