https://www.codelovers.cn/tools/unix.html
https://blog.csdn.net/weixin_41919486/article/details/122428892
/
      @author: qzf
      @date:   2022/4/14 15:38
      @describe: UTC时间戳(秒)转北京时间 ,北京时间 = UTC时间+8小时
      @param: 
      @return: 
    /
    public static String UTCTimeStamp2BeiJing(long ts){
        //Long unixtimestamp = 1641537092L + 86060;
        Long unixtimestamp = ts + 86060;
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(“yyyy-MM-dd HH:mm:ss”);
        simpleDateFormat.setTimeZone(TimeZone.getTimeZone(“GMT”));
        String format1 = simpleDateFormat.format(new Date(unixtimestamp * 1000));
        return format1;
    }
    /
      @author: qzf
      @date:   2022/4/14 15:38
      @describe: 北京时间转UTC时间戳(秒) ,北京时间 = UTC时间+8小时
      @param:
      @return:
    /
    public static long BeiJing2UTCTimeStamp(String date) throws ParseException {
        //Long unixtimestamp = 1641537092L + 86060;
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(“yyyy-MM-dd HH:mm:ss”);
        simpleDateFormat.setTimeZone(TimeZone.getTimeZone(“GMT”));
        Date d = simpleDateFormat.parse(date);
        return d.getTime() / 1000 -  86060;
    }
