Clean up JavaScript timestamp

Question

I'm using this javascript code to sync the client time with my server time

var offset = 0;
function calcOffset() {
 var xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
 xmlhttp.open("GET", "http://stackoverflow.com/", false);
 xmlhttp.send();
 var dateStr = xmlhttp.getResponseHeader('Date');
 var serverTimeMillisGMT = Date.parse(new Date(Date.parse(dateStr)).toUTCString());
 var localMillisUTC = Date.parse(new Date().toUTCString());
 offset = serverTimeMillisGMT - localMillisUTC;
}
function getServerTime() {
 var date = new Date();
 date.setTime(date.getTime() + offset);
 return date;
}

the date I get back is

 "2013-10-03T16:37:05.568Z"

How to I make this "2013-10-03 H:i:s"?

• Jeff Escalante: If you are working with dates, momentjs.com is a great resource. Javscript's native handling for dates isn't very clean or smooth. That being said, there is an answer to this in vanilla JS which I'll put up if I can get it there before anyone else, hah.
• 0xcaff: What does H:i:s mean Hour:i:Seconds? What's up with the I.

Answer 1

Although using moment.js is a smoother way to do it if you are working with a bunch of dates, here's a way to do it with vanilla JS:

x = new Date
x.getFullYear() + '-' + x.getMonth() + '-' + x.getDay() 

Edit:

Here it is with the time and leading zeros on the month and day, as you can see these extra things add a good bit more code. Maybe if you post another question detailing your troubles with moment.js, we would be able to help getting it fixed:

formatDate(new Date);
function formatDate(d){
 var year = d.getFullYear();
 var month = addLeadingZero(d.getMonth());
 var day = addLeadingZero(d.getDay());
 var hours = d.getHours();
 var minutes = d.getMinutes();
 var seconds = d.getSeconds();
 return year + '-' + month + '-' + day + ' ' + hours + ':' + minutes + ':' + seconds
}
function addLeadingZero(n){ return n < 10 ? '0'+n : ''+n }

• JAAulde: moment.js is super awesome.
• user2320607: Except I'm using it with firebase to get the current time without page refresh and it's (moment.js) not working.