<span class="joind">135</span>天<span class="joinh">7</span>時<span class="joinm">46</span>分<span class="joins">25</span>秒 

<script src="https://code.jquery.com/jquery-3.1.1.min.js" type="text/javascript" charset="utf-8"></script><script type="text/javascript"> var setTimer = null; var chazhi = 0; //差值計算 //例子(模擬) chazhi = 135 * 86400000; //真實時間(注意月份需減掉1，否則時間會計算錯誤) //chazhi = (new Date(year,month-1,day,hour,minute,second)) - (new Date()); //計算剩余的毫秒數 //chazhi = (new Date(2018,8-1,6,6,6,6)) - (new Date());  //執行函數部分 countFunc(chazhi); setTimer = setInterval(function() { chazhi = chazhi - 1000; countFunc(chazhi); }, 1000); function countFunc(leftTime) { if(leftTime >= 0) {  var days = parseInt(leftTime / 1000 / 60 / 60 / 24, 10); //計算剩余的天數   var hours = parseInt(leftTime / 1000 / 60 / 60 % 24, 10); //計算剩余的小時   var minutes = parseInt(leftTime / 1000 / 60 % 60, 10); //計算剩余的分鐘   var seconds = parseInt(leftTime / 1000 % 60, 10); //計算剩余的秒數   days = checkTime(days);  hours = checkTime(hours);  minutes = checkTime(minutes);  seconds = checkTime(seconds);  $(".joind").html(days);  $(".joinh").html(hours);  $(".joinm").html(minutes);  $(".joins").html(seconds); } else {  clearInterval(setTimer);  $(".joind").html("00");  $(".joinh").html("00");  $(".joinm").html("00");  $(".joins").html("00"); } } function checkTime(i) { //將0-9的數字前面加上0，例1變為01  if(i < 10) {  i = "0" + i; } return i; }</script>