<div style='padding:14px; border: 1px dashed black;'>
<script language="JavaScript1.2">
//Script courtesy of Sharon Gartenberg's Date Countdown
//JavaScript generator under the GNU General Public License
var today = new Date;
var Future0 = new Date;
ThisYear = 2008;

var FutureMonth = 11;
var FutureDate = 31;
var faraevent = "";

Future0.setMonth(FutureMonth, FutureDate);
Future0.setFullYear(ThisYear);

today1 = Date.parse(today);
future1 = Date.parse(Future0);
secleft = future1 - today1;
miliday = 24 * 60 * 60 * 1000;
daysleft = secleft/miliday;
daysleftint = Math.round(daysleft);

if (daysleftint > 1)
document.write("<font color=#ff0000>До нового года ", daysleftint, " дней", faraevent , "!</font>");
else if (daysleftint == 1)
document.write(faraevent, " is tomorrow! ");
else if (today1 == future1)
document.write(faraevent, " is today! ");
</script><br><br>
<img src="http://mitask.ru/img/novui.png" border="0"><br><br>
<a href='http://mitask.ru/blog/2008-12-23-89/'>Взять на свой сайт</a> </div>

В часах минутах и секундах:

<div id='x1' style='padding:14px; border: 1px dashed black;'></div>

var timeStr, dateStr, ostStr, x;

function clock() {
now= new Date();
ex = new Date(2009,0,1,0,0,0);

// время
hours= now.getHours();
minutes= now.getMinutes();
seconds= now.getSeconds();
timeStr= "" + hours;
timeStr+= ((minutes < 10) ? ":0" : ":") + minutes;

// дата
date= now.getDate();
month= now.getMonth()+1;
year= now.getYear();
dateStr= "" + date;
dateStr+= ((month < 10) ? "/0" : "/") + month;
dateStr+= "/" + year;

ostStr= "";
x = (ex.getTime() - now.getTime())/1000;
ostStr = Math.floor(x/60/60) + ' ч. ';
ostStr = ostStr + Math.floor((x/60/60 - Math.floor(x/60/60))*60) + ' мин. ';
x = (((x/60/60 - Math.floor(x/60/60))*60) - Math.floor((x/60/60 - Math.floor(x/60/60))*60))*60;
ostStr = ostStr + Math.floor(x) + ' сек. ';

document.getElementById('x1').innerHTML = 'до Нового Года осталось: ' + '' + ostStr;

Timer= setTimeout("clock()",10);
}

clock();
</script>

</div>

Объявления: