What's My Time?

<?
  // $gmtoffset : your timezone. For example, UK is 0, Colorado is -7, Germany is +1, etc.
  $gmtoffset = 0;

  // $dst : Daylight Saving Time zone. This varies around the world - see http://webexhibits.org/daylightsaving/b.html and http://webexhibits.org/daylightsaving/g.html for more information.
  //        At the moment, only 3 values are calculated:
  //                0 -- no Daylight Saving Time
  //                1 -- European Union DST
  //                2 -- United States DST
  $dst = 1;
?>

var servergmtime = new Date("<? echo gmdate("M d Y G:i:s"); ?>");
var timecorrection = (new Date() - servergmtime);
var dst = <? echo $dst; ?>;
var gmtOffset = (<? echo $gmtoffset; ?> * 3600000);

timeID = window.setTimeout("timeUpdate();", 10);

function timeUpdate() {
  var weekday = new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday");
  var monthname = new Array("January","February","March","April","May","June","July","August","September","October","November","December");

  //Get current date
  timeNow1 = new Date();

  //Apply the correction
  var expdate = timeNow1.getTime();
  expdate -= timecorrection;
  timeNow1.setTime(expdate);

  if (dst != 0) {
  	dstinfo=new WhatDates(dst,timeNow1.getFullYear());

	with (dstinfo) {
  		currentYear = timeNow1.getFullYear();

  		var startDST = new Date(currentYear,dstMonth1-1,dstMonth1Date,1,0);
  		var endDST   = new Date(currentYear,dstMonth2-1,dstMonth2Date,1,0);

  		if ((timeNow1.getTime() > startDST.getTime()) && (timeNow1.getTime() < endDST.getTime())) {
			var timeNowMs = timeNow1.getTime();
			timeNowMs = timeNowMs + 3600000;
			timeNow1.setTime(timeNowMs);
  		}
	}
  }

  var timeNowGMT = timeNow1.getTime();
  timeNowGMT = timeNowGMT + (gmtOffset);
  timeNow1.setTime(timeNowGMT);

  hours = timeNow1.getHours();
  minutes = timeNow1.getMinutes();
  if (minutes < 10) {minutes = "0" + minutes};

  seconds = timeNow1.getSeconds();

  displayTime = hours+":"+minutes+":";
  if (seconds < 10) {seconds = "0" + seconds};
  displayTime+=seconds+" - "+weekday[timeNow1.getDay()]+" "+timeNow1.getDate()+" "+monthname[timeNow1.getMonth()]+" "+timeNow1.getFullYear();

  if (document.all) {
    //IE or Opera
    document.all['showTime'].innerHTML = displayTime;
  } else {
    //Mozilla
    document.getElementById("showTime").innerHTML = displayTime;
  }
  timeID=window.setTimeout("timeUpdate();",1000);
}

function WhatDates(dsavingt,thisYear) {
  var dsavingt, thisYear, AprilDate, OctoberDate, MarchDateEU, OctoberDateEU;
  thisYear = Math.round(parseInt(thisYear));

  // European Union
  if (dsavingt == 1) {
  	this.dstMonth1 = 3;
  	this.dstMonth2 = 10;
  	this.dstTime = 1;
  	this.dstMonth1Date = (31-( Math.floor (thisYear * 5 / 4) + 4) % 7);
  	this.dstMonth2Date = (31-( Math.floor (thisYear * 5 / 4) + 1) % 7);
  }

  // USA
  if (dsavingt == 2) {
  	this.dstMonth1 = 4;
  	this.dstMonth2 = 10;
  	this.dstTime = 2;
  	this.dstMonth1Date = (2+6 * thisYear - Math.floor (thisYear / 4) ) % 7 + 1;
  	this.dstMonth2Date = (31-( Math.floor (thisYear * 5 / 4) + 1) % 7);
  }

}

<span id="showTime"><? echo "00:00:00 - ".gmdate("l d F Y");?></span>