最全面的JS倒计时代码

第一种:精确到秒的javascript倒计时代码

HTML代码:

<form name="form1">
<div align="center" align="center">
<center>离2010年还有:<br>
<input type="textarea" name="left" size="35" style="text-align: center">
</center>
</div>
</form>
<script LANGUAGE="javascript">
startclock()
var timerID = null;
var timerRunning = false;
function showtime() {
Today = new Date();
var NowHour = Today.getHours();
var NowMinute = Today.getMinutes();
var NowMonth = Today.getMonth();
var NowDate = Today.getDate();
var NowYear = Today.getYear();
var NowSecond = Today.getSeconds();
if (NowYear <2000)
NowYear=1900+NowYear;
Today = null;
Hourleft = 23 - NowHour
Minuteleft = 59 - NowMinute
Secondleft = 59 - NowSecond
Yearleft = 2009 - NowYear
Monthleft = 12 - NowMonth - 1
Dateleft = 31 - NowDate
if (Secondleft<0)
{
Secondleft=60+Secondleft;
Minuteleft=Minuteleft-1;
}
if (Minuteleft<0)
{
Minuteleft=60+Minuteleft;
Hourleft=Hourleft-1;
}
if (Hourleft<0)
{
Hourleft=24+Hourleft;
Dateleft=Dateleft-1;
}
if (Dateleft<0)
{
Dateleft=31+Dateleft;
Monthleft=Monthleft-1;
}
if (Monthleft<0)
{
Monthleft=12+Monthleft;
Yearleft=Yearleft-1;
}
Temp=Yearleft+'年, '+Monthleft+'月, '+Dateleft+'天, '+Hourleft+'小时, '+Minuteleft+'分, '+Secondleft+'秒'
document.form1.left.value=Temp;
timerID = setTimeout("showtime()",1000);
timerRunning = true;
}
var timerID = null;
var timerRunning = false;
function stopclock () {
if(timerRunning)
clearTimeout(timerID);
timerRunning = false;
}
function startclock () {
stopclock();
showtime();
}
// -->
</script>

第二种:某某运动会

HTML代码:

<!--倒计时Javascript begin-->
<script language="JavaScript">
<!--
function DigitalTime1()
{
var deadline= new Date("08/13/2007") //开幕倒计时
var symbol="8月13日"
var now = new Date()
var diff = -480 - now.getTimezoneOffset() //是北京时间和当地时间的时间差
var leave = (deadline.getTime() - now.getTime()) + diff*60000
var day = Math.floor(leave / (1000 * 60 * 60 * 24))
var hour = Math.floor(leave / (1000*3600)) - (day * 24)
var minute = Math.floor(leave / (1000*60)) - (day * 24 *60) - (hour * 60)
var second = Math.floor(leave / (1000)) - (day * 24 *60*60) - (hour * 60 * 60) - (minute*60) 

var deadline_2= new Date("08/13/2004") //开幕后计时
var symbol_2="8月13日"
var now_2 = new Date()
var diff_2 = -480 - now.getTimezoneOffset() //是北京时间和当地时间的时间差
var leave_2 = (now_2.getTime() - deadline_2.getTime()) + diff_2*60000
var day_2 = Math.floor(leave_2 / (1000 * 60 * 60 * 24))
var hour_2 = Math.floor(leave_2 / (1000*3600)) - (day_2 * 24)
var minute_2 = Math.floor(leave_2 / (1000*60)) - (day_2 * 24 *60) - (hour_2 * 60)
var second_2 = Math.floor(leave_2 / (1000)) - (day_2 * 24 *60*60) - (hour_2 * 60 * 60) - (minute_2*60) 

day=day+1;
day_2=day_2+1; 

if (day>0) //还未开幕
{
//LiveClock1.innerHTML = "现在"+symbol+"天"
LiveClock1.innerHTML = "<font
setTimeout("DigitalTime1()",1000)
} 

if (day<0) //已经开幕
{
//LiveClock1.innerHTML = "现在离"+symbol+"还有"+day+"天"+hour+"小时"+minute+"分"+second +"秒"
LiveClock1.innerHTML = "<font
setTimeout("DigitalTime1()",1000) 

} 

if (day==0) //正在开幕
{
//LiveClock1.innerHTML = "现在"+symbol+"天"
LiveClock1.innerHTML = "<font
setTimeout("DigitalTime1()",1000)
} 

if (day<0 & day_2>19) //某某运动会结束
{
//LiveClock1.innerHTML = "现在离"+symbol+"还有"+day+"天"+hour+"小时"+minute+"分"+second +"秒"
LiveClock1.innerHTML = "<font
setTimeout("DigitalTime1()",1000) 

} 

}
// -->
</script>
<!--倒计时Javascript end-->
<body onload=DigitalTime1()>
<div id= LiveClock1></div> 

</body>

第三种:小时倒计时

HTML代码:

<SCRIPT LANGUAGE="JavaScript">
<!--
var maxtime = 60*60 //一个小时,按秒计算,自己调整!
function CountDown(){
if(maxtime>=0){
minutes = Math.floor(maxtime/60);
seconds = Math.floor(maxtime%60);
msg = "距离结束还有"+minutes+"分"+seconds+"秒";
document.all["timer"].innerHTML=msg;
if(maxtime == 5*60) alert('注意,还有5分钟!');
--maxtime;
}
else{
clearInterval(timer);
alert("时间到,结束!");
}
}
timer = setInterval("CountDown()",1000);
//-->
</SCRIPT>
<div id="timer" style="color:red"></div>

第四种:最简倒计时

HTML代码:

<Script Language="JavaScript">
<!-- Begin
  var timedate= new Date("January 14,2006");
  var times="研究生考试";
  var now = new Date();
  var date = timedate.getTime() - now.getTime();
  var time = Math.floor(date / (1000 * 60 * 60 * 24));
  if (time >= 0) ;
document.write("<li><font color=#DEDBDE>现在离2006年"+times+"还有: <font color=#ffffff><b>"+time +"</b></font> 天</font></li>");
// End -->
</Script>

第五种:最简倒计时二

HTML代码:

<script language="JavaScript" type="text/javascript">
function djs(){
var urodz= new Date("11/12/2008"); 
var now = new Date();
var num
var ile = urodz.getTime() - now.getTime();  
var dni = Math.floor(ile / (1000 * 60 * 60 * 24));  
if (dni >1)  
num=dni+1
else if (dni == 1) num=2 
else if (dni == 0) num=1
else num=0 
document.write(num)  
}
</script>

距某某开幕式还有 [<script language="JavaScript" type="text/javascript">djs()</script>] 天

第六种:Javascript倒计时器 - 采用系统时间自校验  
这次利用系统时间自校验倒计时, 无需手工调校使得倒计时更为精确, 代码及详细注释如下:

<span id="clock">00:01:11:00</span>
<input id="startB" type="button" value="start countdown!" onclick="run()">
<input id="endB" type="button" value="stop countdown!" onclick="stop()">
<br>
<input id="diff" type="text">
<input id="next" type="text">
<script language="Javascript">
/* This notice must be untouched at all times.

countdown.js v. 1.0
The latest version is available at
http://blog.csdn.net/yjgx007

Copyright (c) 2004 Xinyi.Chen. All rights reserved.
Created 7/30/2004 by Xinyi.Chen.
Web: http://blog.csdn.net/yjgx007
E-Mail: chenxinyi1978@hotmail.com
Last modified: 7/30/2004

This program is free software;
you can redistribute it and/or modify it under the terms of the
GNU General Public License as published by the Free Software Foundation;

See the GNU General Public License
at http://www.gnu.org/copyleft/gpl.html for more details.
*/
var normalelapse = 100;
var nextelapse = normalelapse;
var counter;
var startTime;
var start = clock.innerText;
var finish = "00:00:00:00";
var timer = null; 

// 开始运行
function run() {
startB.disabled = true;
endB.disabled = false;
counter = 0;
// 初始化开始时间
startTime = new Date().valueOf(); 

// nextelapse是定时时间, 初始时为100毫秒
// 注意setInterval函数: 时间逝去nextelapse(毫秒)后, onTimer才开始执行
timer = window.setInterval("onTimer()", nextelapse);
} 

// 停止运行
function stop() {
startB.disabled = false;
endB.disabled = true;
window.clearTimeout(timer);
} 

window.onload = function() {
endB.disabled = true;
} 

// 倒计时函数
function onTimer()
{ 

if (start == finish)
{
window.clearInterval(timer);
alert("time is up!");
return;
} 

var hms = new String(start).split(":");
var ms = new Number(hms[3]);
var s = new Number(hms[2]);
var m = new Number(hms[1]);
var h = new Number(hms[0]); 

ms -= 10;
if (ms < 0)
{
ms = 90;
s -= 1;
if (s < 0)
{
 s = 59;
 m -= 1;
} 

if (m < 0)
{
 m = 59;
 h -= 1;
}
} 

var ms = ms < 10 ? ("0" + ms) : ms;
var ss = s < 10 ? ("0" + s) : s;
var sm = m < 10 ? ("0" + m) : m;
var sh = h < 10 ? ("0" + h) : h; 

start = sh + ":" + sm + ":" + ss + ":" + ms;
clock.innerText = start; 

// 清除上一次的定时器
window.clearInterval(timer); 

// 自校验系统时间得到时间差, 并由此得到下次所启动的新定时器的时间nextelapse
counter++;
var counterSecs = counter * 100;
var elapseSecs = new Date().valueOf() - startTime;
var diffSecs = counterSecs - elapseSecs;
nextelapse = normalelapse + diffSecs;
diff.value = counterSecs + "-" + elapseSecs + "=" + diffSecs;
next.value = "nextelapse = " + nextelapse;
if (nextelapse < 0) nextelapse = 0; 

// 启动新的定时器
timer = window.setInterval("onTimer()", nextelapse);
}
</script>

附加一个完整的倒计时和时间  复制即可使用  运行的结果分别是:

天 小时 分 秒 2013年01月22日 15:44:23 星期二

<html>

<head>

<title>倒计时测试</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 () {

<!-- 时间必须启动 -->

  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);

}

<!-- 隐藏脚本从旧的浏览器

var DifferHour = -1

var DifferMinute = -1

var DifferSecond = -1

var Tday1 = new Date("Feb 11, 2013 00:00:00") //**倒计时时间-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)

}

//

隐藏-->

</script>

</head>

<body onload="clock();return true" >

<!--显示出内容-->
<form name="formnow">
<input name="dd" type="text" style="border:0;" size=2>
天
<input name="hh" type="text" style="border:0;" size=2>
小时
<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>

<!--倒计时完毕啦-->

</body>

</html>

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持我们。

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