<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>test08.html</title>
<script type="text/javascript">
function showTime(){
var today=new Date();
var year=today.getFullYear();
var month=today.getMonth()+1;
var date=today.getDate();
var hour=today.getHours();
hour=checkTime(hour);
var shangxia="上午";
if(hour>12){
shangxia="下午";
hour=hour-12;
}
var minute=today.getMinutes();
minute=checkTime(minute);
var second=today.getSeconds();
second=checkTime(second);
var day=today.getDay();
var weekday;
switch(day){
case 0:
weekday="星期天";
break;
case 1:
weekday="星期一";
break;
case 2:
weekday="星期二";
break;
case 3:
weekday="星期三";
break;
}
var currentTime=year+"年"+month+"月"+date+"日 "+hour+":"+minute+":"+second+" "+shangxia+" "+weekday;
document.getElementById("time").innerHTML=currentTime;
}
function checkTime(t){
if(t<10){
t="0"+t;
}
return t;
}
setInterval("showTime()",1000);
</script>
</head>
<body>
<div id="time"></div>
</body>
</html>
原文：http://blog.csdn.net/wangzi11322/article/details/45270711