Java Data Type - 如何java计算时间差错误

import java.text.SimpleDateFormat;
import java.util.Date;

public class Main {
  public static void main(String[] args) throws Throwable {
    SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss");
    Date date1 = format.parse("08:00:01");
    Date date2 = format.parse("23:00:05");
    Date date = new Date(date2.getTime() - date1.getTime());
    System.out.println(format.format(date));
  }
}