Getting the current GMT world time

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You can use JSON[P] and access a time API:

(The code below should work perfectly, just tested it…)

function getTime(zone, success) {
    var url="http://json-time.appspot.com/time.json?tz=" + zone,
        ud = 'json' + (+new Date());
    window[ud]= function(o){
        success && success(new Date(o.datetime));
    };
    document.getElementsByTagName('head')[0].appendChild((function(){
        var s = document.createElement('script');
        s.type="text/javascript";
        s.src = url + '&callback=' + ud;
        return s;
    })());
}

getTime('GMT', function(time){
    // This is where you do whatever you want with the time:
    alert(time);
});

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