Java毫秒值转具体日期具体时间

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

public class HaomiaoZhuanRiqi {
    public static void main(String[] args) {
        //毫秒值转yy::mm::dd
        SimpleDateFormat sdf = new SimpleDateFormat("yy-MM-dd HH-mm-ss");
        long timeStamp = 1693794190846L;//时间戳
        Date date = new Date(timeStamp);
        String dateTime = sdf.format(timeStamp);
        System.out.println(dateTime);
    }
}

1693794190846
23-09-04 10-23-10