javascript - How can I get time from another server using AJAX?

Question

I need to get time from some online source - NTP server, JSON time server, or maybe event just an HTTP Header. I don't care about precision, but I do need to get time from an online source. I don't have access to any servers so I can't write any server side code.

I can't do this using HTTP Request to get the header since I guess it would be violating the same origin policy.

And I can't seem to find a way of doing it that does not involve some level of PHP or other languages - I can only use HTML/CSS/JS...nothing else!

Any ideas?

Answer 1

$.ajax({
    url: 'http://timeapi.org/utc/now.json',
    dataType: 'jsonp'
})
.done(function(response) {
    // response = {"dateString":"2012-03-06T02:18:25+00:00"}
    console.log(response.dateString);// "2012-03-06T02:18:25+00:00"
});