Getting wrong date '01:00:00' when using SimpleDateFormat.parse()

Question

I got wrong result when using SimpleDateFormat.parse(). Code here:

public static void main(String[] args) throws ParseException {
        String format = "yyyyMMdd";
        String date = "19890416";
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
        java.util.Date date2 = simpleDateFormat.parse(date);
        System.out.println("date2 = " + date2);
        System.out.println("Locale.getDefault() = " + Locale.getDefault());
}

result:

date2 = Sun Apr 16 01:00:00 CDT 1989
Locale.getDefault() = zh_CN

there is my question: why in the result it shows up 01:00:00, instead of 00:00:00?

What should I do if I want 00:00:00?

Anyone can help? Thanks!

Update: I want to know, when define format as "yyyyMMdd", why the default hour shows up "01", thanks.