JavaScript Dates and Times

What is the JavaScript equivalent to the following PHP code:

$expTime = time() + (5 * 60 * 60); // now plus 5 hours (5 hour; 60 mins; 60 secs) 
$ex开发者_运维技巧pTimeStr = gmdate('Y-m-d\TH:i:s\Z', $expTime); 

var expTime    = new Date((+new Date()) + (5 * 60 * 60000))
var m          = expTime.getMonth() + 1
var d          = expTime.getDate()
var y          = expTime.getFullYear()
var h          = expTime.getHours()
var i          = expTime.getMinutes()
var s          = expTime.getSeconds()
var expTimeStr = y +"-"+ m +"-"+ d +" "+ h +":"+ i +":"+ s

The gmdate() function doesn't transfer well to JavaScript... There is a gmdate() port on phpjs that uses the date() function from phpjs to do the complex formatting.

To calculate the date:

var time = new Date((+new Date()) + (5 * 60 * 60000)); // js times are ms

alert(time.toUTCString()); // quick JS method to return UTC time

The (+new Date()) forces the Date() into an integer before adding ms, and passing it back to the new Date() constructor.

The built in date formatting for Javascript isn't incredible, but I can offer two helpful libraries to accomplish what you want. The first is something called phpjs - Javascript ports of a number of php functions.

http://phpjs.org/functions/index

http://phpjs.org/functions/gmdate:586

The second is a jQuery plugin:

http://joncom.be/code/jquery-phpdate/