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最全面的JS倒计时代码

Posted in Javascript onSeptember 17, 2016

本文实例为大家分享了JS倒计时展示的具体代码，供大家参考，具体内容如下

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三水点靠木。<

最全面的JS倒计时代码

- Author -

lijiao

声明：登载此文出于传递更多信息之目的，并不意味着赞同其观点或证实其描述。

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