No te está recogiendo correctamente la hora del servidor. Prueba de la siguiente forma:
hoy = new Date(<?php time();?>);// coger hora del servidor
Código completo:
<!-- AVISO CONTADOR -->
<html><head>
</head><body onLoad="getTime()"><div align="center"><script languaje="JavaScript">
function getTime() {
hoy = new Date(<?php time();?>);// coger hora del servidor
y2k = new Date("Dec 31 2011 23:59:59");
days = (y2k - hoy) / 1000 / 60 / 60 / 24;
daysRound = Math.floor(days);
hours = (y2k - hoy) / 1000 / 60 / 60 - (24 * daysRound);
hoursRound = Math.floor(hours);
minutes = (y2k - hoy) / 1000 /60 - (24 * 60 * daysRound) - (60 * hoursRound);
minutesRound = Math.floor(minutes);
seconds = (y2k - hoy) / 1000 - (24 * 60 * 60 * daysRound) - (60 * 60 * hoursRound) - (60 * minutesRound);
secondsRound = Math.round(seconds);
sec = (secondsRound == 1) ? " segundo" : " segundos";
min = (minutesRound == 1) ? " minuto" : " minutos, ";
hr = (hoursRound == 1) ? " hora" : " horas, ";
dy = (daysRound == 1) ? " dÃÂ*a" : " días, "
document.getElementById("counter").innerHTML = "Faltan " + daysRound + dy + hoursRound + hr + minutesRound + min + secondsRound + sec + " <br />para el 2012!!!";
newtime = window.setTimeout("getTime();", 1000);
}
</script></div><p id="counter" style="color:#000000;text-align:center;font-size:18px;border:double">
Faltan -369 dÃ*as, 4 horas, 54 minutos, 53 segundos
<br></br>
para el 2012!!!
</p>
<!-- AVISO CONTADOR -->
</body></html>
