本文實例為大家分享了js倒計時代碼，供大家參考，具體內容如下
<html>
<head>
<title>倒計時測試</title>
<script src="http://event.wushuangol.com/ShopClothes/Scripts/jquery-1.4.4.min.js" type="text/javascript"></script>
<script language="JavaScript">
$(document).ready(function () {
<!-- 時間必須啟動 -->
clockon();
});
function clockon() {
var now = new Date();
var year = now.getFullYear(); //getFullYear getYear
var month = now.getMonth();
var date = now.getDate();
var day = now.getDay();
var hour = now.getHours();
var minu = now.getMinutes();
var sec = now.getSeconds();
var week;
month = month + 1;
if (month < 10) month = "0" + month;
if (date < 10) date = "0" + date;
if (hour < 10) hour = "0" + hour;
if (minu < 10) minu = "0" + minu;
if (sec < 10) sec = "0" + sec;
var arr_week = new Array("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六");
week = arr_week[day];
var time = "";
time = year + "年" + month + "月" + date + "日" + " " + hour + ":" + minu + ":" + sec + " " + week;
$("#bgclock").html(time);
var timer = setTimeout("clockon()", 200);
}
<!-- 隱藏腳本從舊的浏覽器
var DifferHour = -1
var DifferMinute = -1
var DifferSecond = -1
var Tday1 = new Date("Feb 11, 2013 00:00:00") //**倒計時時間-注意格式
var daysms = 24 * 60 * 60 * 1000
var hoursms = 60 * 60 * 1000
var Secondms = 60 * 1000
var microsecond = 1000
function clock()
{
var time = new Date()
var hour = time.getHours()
var minute = time.getMinutes()
var second = time.getSeconds()
var timevalue = ""+((hour > 12) ? hour-12:hour)
timevalue +=((minute < 10) ? ":0":":")+minute
timevalue +=((second < 10) ? ":0":":")+second
timevalue +=((hour >12 ) ? " PM":" AM")
var convertHour = DifferHour
var convertMinute = DifferMinute
var convertSecond = DifferSecond
var Diffms = Tday1.getTime() - time.getTime()
DifferHour = Math.floor(Diffms / daysms)
Diffms -= DifferHour * daysms
DifferMinute = Math.floor(Diffms / hoursms)
Diffms -= DifferMinute * hoursms
DifferSecond = Math.floor(Diffms / Secondms)
Diffms -= DifferSecond * Secondms
var dSecs = Math.floor(Diffms / microsecond)
if(convertHour != DifferHour) document.formnow.dd.value=DifferHour
if(convertMinute != DifferMinute) document.formnow.hh.value=DifferMinute
if(convertSecond != DifferSecond) document.formnow.mm.value=DifferSecond
document.formnow.ss.value=dSecs
document.formnow.ss.value=dSecs
// document.formnow.Tnow.value= DifferHour DifferMinute + DifferSecond + dSecs
setTimeout("clock()",1000)
}
//
隱藏-->
</script>
</head>
<body onload="clock();return true" >
<!--顯示出內容-->
<form name="formnow">
<input name="dd" type="text" style="border:0;" size=2>
天
<input name="hh" type="text" style="border:0;" size=2>
小時
<input name="mm" type="text" style="border:0;" size=2>
分
<input name="ss" type="text" style="border:0;" size=2>
秒
<span id="bgclock" style="float:right;padding-right:10px; padding-top:2px;text="red""></span>
</form>
<!--倒計時完畢啦-->
</body>
</html>
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持。