<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<title>Javascript 世界時間時間顯示</title>
<meta name="author" content="Geovin Du 塗聚文"/>
</head>
<body>
<h1></h1>
<div id="local"></div>
<div id="localutc"></div>
<div id="bombay"></div>
<div id="singapore"></div>
<div id="tokyo"></div>
<div id="london"></div>
<script language="javascript" type="text/javascript">
//https://gist.github.com/1326893https://gist.github.com/1326893
//20120511 Geovin Du 塗聚文
function calcTime(city, offset) {
var d = new Date();
utc = d.getTime() + (d.getTimezoneOffset() * 60000);
var nd = new Date(utc + (3600000 * offset));
var gmtTime = new Date(utc)
var day = nd.getDate();
var month = nd.getMonth();
var year = nd.getYear();
var hr = nd.getHours(); //+ offset
var min = nd.getMinutes();
var sec = nd.getSeconds();
if(year < 1000){
year += 1900
}
var monthArray = new Array("January", "February", "March", "April", "May", "June", "July", "August",
"September", "October", "November", "December")
var monthDays = new Array("31", "28", "31", "30", "31", "30", "31", "31", "30", "31", "30", "31")
if (year%4 == 0){
monthDays = new Array("31", "29", "31", "30", "31", "30", "31", "31", "30", "31", "30", "31")
}
if(year%100 == 0 && year%400 != 0){
monthDays = new Array("31", "28", "31", "30", "31", "30", "31", "31", "30", "31", "30", "31")
}
if (hr >= 24){
hr = hr-24
day -= -1
}
if (hr < 0){
hr -= -24
day -= 1
}
if (hr < 10){
hr = " " + hr
}
if (min < 10){
min = "0" + min
}
if (sec < 10){
sec = "0" + sec
}
if (day <= 0){
if (month == 0){
month = 11
year -= 1
}
else{
month = month -1
}
day = monthDays[month]
}
if(day > monthDays[month]){
day = 1
if(month == 11){
month = 0
year -= -1
}
else{
month -= -1
}
}
return city+":The local time is"+monthArray[month] + " " + day + ", " + year + "<br>" + hr + ":" + min + ":" + sec
//return "The local time in " + city + " is " + nd.toLocaleString()+;
}
function worldClockZone(){
document.getElementById('local').innerHTML = "The local time is " + (new Date()).toLocaleString();
document.getElementById('localutc').innerHTML = "The local time is " + (new Date()).toLocaleString();
document.getElementById('bombay').innerHTML = calcTime('bombay', '+5.5');
document.getElementById('singapore').innerHTML = calcTime('singapore', '+8');
document.getElementById('tokyo').innerHTML = calcTime('tokyo', '+9');
document.getElementById('london').innerHTML =calcTime('london', '+1');
setTimeout("worldClockZone()", 1000)
}
window.onload=worldClockZone;
</script>
<hr/>
<address></address>
<!-- hhmts start --> Last modified: Mon Oct 31 02:04:17 BRST 2011 <!-- hhmts end -->
</body>
</html>