Just based on JavaScript to show localtime immediately
<script>
function show_time()
{
var today,hour,second,minute,year,month,date,time;
today=new Date();
year = today.getFullYear();
month = today.getMonth()+1;
date = today.getDate();
hour = today.getHours();
minute =today.getMinutes();
second = today.getSeconds();
if(minute < 10) minute = '0' + minute;
if(second < 10) second = '0' + second;
time = year + "-" + month + "-" + date +" " + hour + ":" + minute + ":" + second;
$("#nowdate").html(time);
}
setInterval(show_time,1000);
</script>
