Question

How can I convert a date time format from JSON.Net such as:

/Date(1154970000000+0700)/

To ISO-?? format
2011-12-18T23:34:59Z

Preferably in either Python or Javascript.

Ive decided on the latter as its seems in the JS world the most widely used, humanly readable and naturally sortable. I’ll store offsets on a per user basis.

If an implementation is again a bit much too ask, if someone can tell me the correct name for both formats I might have more luck in understanding how to convert.

Answer 1

jsonDate = "/Date(1154970000000+0700)/";

var strDate = parseInt(jsonDate.replace(/\/Date\(([-\d]+).*$/, "$1"));
var strHour = parseInt(jsonDate.replace(/.*\d([+-]\d\d).*$/, "$1"), 10);
var strMin = parseInt(jsonDate.replace(/.*\d([+-])\d\d(\d\d).*$/, "$1$2"), 10);

var date = new Date(strDate);
if (!isNaN(strHour)) date.setHours(date.getHours() + strHour);
if (!isNaN(strMin)) date.setMinutes(date.getMinutes() + strMin);

var out = date.toISOString();

And the function to convert to ISO:

var toISOString = Date.prototype.toISOString ?
    function(d){return d}:
    (function(){
        function t(i){return i<10?"0"+i:i};
        function h(i){return i.length<2?"00"+i:i.length<3?"0"+i:3<i.length?Math.round(i/Math.pow(10,i.length-3)):i};
        function toISOString(){
            return "".concat(
                this.getUTCFullYear(), "-",
                t(this.getUTCMonth() + 1), "-",
                t(this.getUTCDate()), "T",
                t(this.getUTCHours()), ":",
                t(this.getUTCMinutes()), ":",
                t(this.getUTCSeconds()), ".",
                h("" + this.getUTCMilliseconds()), "Z"
            );
        };
        return function(d){
            d.toISOString = toISOString;
            return d;
        }
    })();