<div id="timer"></div>
<script type="text/javascript" language="javascript">
var endDate=new Date(2010,11,11,17,05,40)//年月日时分秒,月要减去1
(function daoJiShi()
{
var now=new Date()
var oft=Math.round((endDate-now)/1000)
var ofd=parseInt(oft/3600/24)
var ofh=parseInt((oft%(3600*24))/3600)
var ofm=parseInt((oft%3600)/60)
var ofs=oft%60
document.getElementById('timer').innerHTML='还有 '+ofd+' 天 ' +ofh+ ' 小时 ' +ofm+ ' 分钟 ' +ofs+ ' 秒'
if(ofs<0){document.getElementById('timer').innerHTML='倒计时结束!'return}
setTimeout('daoJiShi()',1000)
}())
</script>
</body>
<!DOCTYPE html><html>
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<div id="box">
还剩:
<label for="" id="hour">00</label>小时
<label for="" id="minute">00</label>分
<label for="" id="second">00</label>秒
</div>
<script type="text/javascript">
var o_b=document.getElementById("box")
//获取界面标签对象
var o_h=document.getElementById("hour")
var o_m=document.getElementById("minute")
var o_s=document.getElementById("second")
function showTime(){
var nowDate=new Date()
//把结束时间转化为日期对象
console.log(nowDate)
var nowTime=nowDate.getTime()
var endDate=new Date("2019/01/20 00:00:00")
var endTime=endDate.getTime()
//距离结束时间剩余的秒数
var diffTime=parseInt((endTime-nowTime)/1000)
console.log(diffTime)
if(diffTime<=0){
o_b.innerHTML="秒杀结束"
clearInterval(t)//清除定时器
}
//将剩余时间(秒)转换为时、分、秒
var hour=parseInt(diffTime/60/60)
var minute=parseInt(diffTime/60%60)
var second=diffTime%60
if(hour<10){
hour="0"+hour
}
if(minute<10){
minute="0"+minute
}
if(second<10){
second="0"+second
}
console.log(o_h)
console.log(o_m)
console.log(o_s)
o_h.innerHTML=hour
o_m.innerHTML=minute
o_s.innerHTML=second
// setTimeout(showTime,1000)
}
showTime()
var t=setInterval(showTime,1000)
console.log(t)
</script>
</body>
</html>
<html><body>
<script>
var interval = 1000
var year=2005
var month=4
var day=10
var divname="sj"
function ShowCountDown(year,month,day,divname)
{
var now = new Date()
var endDate = new Date(year, month-1, day)
var leftTime=endDate.getTime()-now.getTime()
var leftsecond = parseInt(leftTime/1000)
//var day1=parseInt(leftsecond/(24*60*60*6))
var day1=Math.floor(leftsecond/(60*60*24))
var hour=Math.floor((leftsecond-day1*24*60*60)/3600)
var minute=Math.floor((leftsecond-day1*24*60*60-hour*3600)/60)
var second=Math.floor(leftsecond-day1*24*60*60-hour*3600-minute*60)
var cc = document.getElementById(divname)
cc.innerHTML = "距离"+year+"年"+month+"月"+day+"日还有:"+"<br>"+day1+"天"+hour+"小时"+minute+"分"+second+"秒"
}
setInterval("ShowCountDown(year,month,day,divname)",100)
</script>
<div id="sj"></div>
</body>
</html>