var day = document.querySelector(".day");
var hour = document.querySelector(".hour");
var minute = document.querySelector(".minute");
var second = document.querySelector(".second");
// var setTime = +new Date('2022-11-20 18:00:00');//到期时间
var setTime = 1668938400000;
var accountnumber = setInterval(function () {
  countDown();
}, 1000);
function countDown() {
  var now = +new Date();
  var times = (setTime - now) / 1000;
  var d = parseInt(times / 60 / 60 / 24); //天
  d = d < 10 ? "0" + d : d;
  var h = parseInt((times / 60 / 60) % 24); //时
  h = h < 10 ? "0" + h : h;
  var m = parseInt((times / 60) % 60); //分
  m = m < 10 ? "0" + m : m;
  var s = parseInt(times % 60); //秒
  s = s < 10 ? "0" + s : s;
  if (now >= setTime) {
    $(".timeout").show();
    day.innerHTML = "00";
    hour.innerHTML = "00";
    minute.innerHTML = "00";
    second.innerHTML = "00";
    clearInterval(accountnumber);
  } else {
    day.innerHTML = d;
    hour.innerHTML = h;
    minute.innerHTML = m;
    second.innerHTML = s;
  }
}