Is posible print milliseconds too, into a clock? And that was overwrite every milliseconds

Answer 1

You can with the getMilliseconds() method !
You will probably need to use the setInterval() method to reload it every milliseconds. I don't know if it is a good idea but you can try this:
var millis = yourDateObject.getMilliseconds();
setInterval(function(){
millis++;
if(millis == 1000)
millis = 0;
//here you print the millis var.
}, 1);

Answer 2

Date.getTime() returns time in milliseconds. See this for example: http://www.w3schools.com/jsref/jsref_gettime.asp

Answer 3

I am not sure about reloading it every millisecond. That means 1000 fps. Your CPU will get on fire :)

Answer 4

Ok. Thanks

Answer 5

Ok. Thanks