HTML代码：

<div id="times_wrap" class="time_num"> 距离结束时间： <div class="time_w"> <b id="times_d" class="time"> </b>天 <b id="times_h" class="time"> </b>时 <b id="times_m" class="time"> </b>分 <b id="times_s" class="time"> </b>秒 </div></div>

JavaScript代码：

<script type="text/javascript">setTimeout("show_time()",1000);var time_wrap = document.getElementByIdx_x("times_wrap");var time_d = document.getElementByIdx_x("times_d");var time_h = document.getElementByIdx_x("times_h");var time_m = document.getElementByIdx_x("times_m");var time_s = document.getElementByIdx_x("times_s");var time_end = new Date("2012/10/29 08:00:00"); // 设定结束时间time_end = time_end.getTime();function show_time(){ var time_now = new Date(); // 获取当前时间 time_now = time_now.getTime(); var time_distance = time_end - time_now; // 结束时间减去当前时间 var int_day, int_hour, int_minute, int_second; if(time_distance >= 0){ // 天时分秒换算 int_day = Math.floor(time_distance/86400000) time_distance -= int_day * 86400000; int_hour = Math.floor(time_distance/3600000) time_distance -= int_hour * 3600000; int_minute = Math.floor(time_distance/60000) time_distance -= int_minute * 60000; int_second = Math.floor(time_distance/1000) // 时分秒为单数时、前面加零站位 if(int_hour < 10) int_hour = "0" + int_hour; if(int_minute < 10) int_minute = "0" + int_minute; if(int_second < 10) int_second = "0" + int_second; // 显示时间 time_d.innerHTML = int_day; time_h.innerHTML = int_hour; time_m.innerHTML = int_minute; time_s.innerHTML = int_second; setTimeout("show_time()",1000); }else{ time_d.innerHTML = time_d.innerHTML; time_h.innerHTML = time_h.innerHTML; time_m.innerHTML = time_m.innerHTML; time_s.innerHTML = time_s.innerHTML; // clearTimeout(timerID) }};</script>

以上这篇JS倒计时实例_天时分秒就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。