var wd=['Sun','Mon','Tue','Wed','Thu','Fri','Sat'];
var D=[
	['Washington DC',-300,60],//city,standard time zone(minutes), DST(minutes)
	['Guam',600,60]
]

function calc(){
var spans=document.getElementById('zonediv').getElementsByTagName('span')
for(var i=0;i<D.length;i++){
	var t=new Date();
	t.setTime(t.getTime()+(t.getTimezoneOffset()*60000)+((D[i][1]+D[i][2])*60000));//the zone's time
	var Dy=t.getFullYear();
	var Dd=t.getDate()<10?'0'+t.getDate():t.getDate();
	var Dm=t.getMonth()<10?(t.getMonth()+1):t.getMonth()+1;
	var Dh=t.getHours()<10?'0'+t.getHours():t.getHours();
	var Di=t.getMinutes()<10?'0'+t.getMinutes():t.getMinutes();
	var Dz=wd[t.getDay()];
	if (Dh > 12){  Dh=Dh-12; }
	
	spans[i].firstChild.data=Dh-1+':'+Di+' - '+Dz+' '+Dd+'/'+Dm+'/'+Dy;
}
setTimeout('calc()',1000)
}