function clock_12h(){ var today = new Date(); //获得当前时间 //获得年、月、日，Date()函数中的月份是从0－11计算 var year = today.getFullYear(); var month = today.
<div id="ToDay"></div>
<script type="text/javascript">
function clock_12h()
{
var today = new Date(); //获得当前时间
//获得年、月、日，Date()函数中的月份是从0－11计算
var year = today.getFullYear();
var month = today.getMonth()+1;
var date = today.getDate();
var hour = today.getHours(); //获得小时、分钟、秒
var minute = today.getMinutes();
var second = today.getSeconds();
var apm="AM"; //默认显示上午: AM
if (hour>12) //按12小时制显示
{
hour=hour-12;
apm="PM" ;
}
var weekday = 0;
switch(today.getDay()){
case 0:
weekday = "星期日";
break;
case 1:
weekday = "星期一";
break;
case 2:
weekday = "星期二";
break;
case 3:
weekday = "星期三";
break;
case 4:
weekday = "星期四";
break;
case 5:
weekday = "星期五";
break;
case 6:
weekday = "星期六";
break;
}
/*设置div的内容为当前时间*/
document.getElementById("ToDay").innerHTML="<h2></h2><h2>"+year+"年"+month+"月"+date+"日 "+hour+":"+minute+":"+second+" "+apm+" "+weekday+"</h2>";
}
/*使用setInterval()每间隔指定毫秒后调用clock_12h()*/
var myTime = setInterval("clock_12h()",1000);
</script>
