today=new Date();
var hours = today.getHours();
var minutes = today.getMinutes();
var seconds = today.getSeconds();
var nian = today.getYear();
var yue = today.getMonth()+1;
var ri = today.getDate();
var ask

if(hours<4){
ask="晚上好"}else if(hours>=4&&hours<=9){
ask="早上好"}else if(hours>9&&hours<12){
ask="上午好"}else if(hours==12){
ask="中午好"}else if(hours>12&&hours<=18){
ask="下午好"}else{ask="晚上好"};

var week=" 星期"+"日一二三四五六".charAt (new Date().getDay());
var timer =  ((hours >12) ? hours:hours);
timer += ((minutes < 10) ? " : 0" : " : ") + minutes+" : "+seconds;

document.write("DATE: "+nian+" - "+yue+" - "+ri+"　TIME："+timer);
/*document.write(ask+" 今天是"+nian+"年"+yue+"月"+ri+"日 "+week+" "+timer);*/
/*document.write("<p id=\"clock\"><script>setInterval(\"clock.innerHTML=new Date().toLocaleString()+' '+week+' '+ask;\",1000)</script></p>")*/