因为读回来的是UTC时间，所以有时区时差问题，MTP屏幕的时间脚本我平时用的可供参考：

  const now = new Date();

  const year = now.getFullYear();

  const month = String(now.getMonth() + 1).padStart(2, '0');

  const day = String(now.getDate()).padStart(2, '0');

  const hours = String(now.getHours()).padStart(2, '0');

  const minutes = String(now.getMinutes()).padStart(2, '0');

  const seconds = String(now.getSeconds()).padStart(2, '0');

  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;