倒计时js代码

Html

<div id="all">
    <div class="timetext">
        <div>2023年元旦倒计时</div>
        <div>元旦时间：2023年1月1日</div>
        <div>目前距离2023年元旦还有</div>
        <div>
            <span id="t_d"></span>
            <span id="t_h"></span>
            <span id="t_m"></span>
            <span id="t_s"></span>
        </div>
    </div>
</div>

Js

function getRTime() {
    var EndTime = new Date("2023/01/01 00:00:00"); //截止时间
    var NowTime = new Date();
    var t = EndTime.getTime() - NowTime.getTime();
    var d = Math.floor(t / 1000 / 60 / 60 / 24);
    var h = Math.floor(t / 1000 / 60 / 60 % 24);
    var m = Math.floor(t / 1000 / 60 % 60);
    var s = Math.floor(t / 1000 % 60);
    document.getElementById("t_d").innerHTML = d + " 天";
    document.getElementById("t_h").innerHTML = h + " 时";
    document.getElementById("t_m").innerHTML = m + " 分";
    document.getElementById("t_s").innerHTML = s + " 秒";
}
setInterval(getRTime, 0);