-Codigo- Hora en un botón.

<!-- Begin
day = new Date();
miVisit = day.getTime();
function clock() {
dayTwo = new Date();
hrNow = dayTwo.getHours();
mnNow = dayTwo.getMinutes();
scNow = dayTwo.getSeconds();
miNow = dayTwo.getTime();
if (hrNow == 0) {
hour = 12;
ap = " AM";
} else if(hrNow <= 11) {
ap = " AM";
hour = hrNow;
} else if(hrNow == 12) {
ap = " PM";
hour = 12;
} else if (hrNow >= 13) {
hour = (hrNow - 12);
ap = " PM";
}
if (hrNow >= 13) {
hour = hrNow - 12;
}
if (mnNow <= 9) {
min = "0" + mnNow;
}
else (min = mnNow)
if (scNow <= 9) {
secs = "0" + scNow;
} else {
secs = scNow;
}
time = hour + ":" + min + ":" + secs + ap;
document.form.button.value = time;
self.status = time;
setTimeout('clock()', 1000);
}
function timeInfo() {
milliSince = miNow;
milliNow = miNow - miVisit;
secsVisit = Math.round(milliNow / 1000);
minsVisit = Math.round((milliNow / 1000) / 60);
message = "Has estado " + milliNow + " milisegundos en esta pagina"+ "... esto es " + minsVisit + " minutos" ;
message = message + ", y "+ secsVisit + " segundos.";
alert(message) ;
}
document.write("<br><br><center><form name='form'>"+ "<input type=button value='Click for info!'"+ " name=button onClick='timeInfo()'></form></center>");
onError = null;
clock();
// End -->
</SCRIPT>