Polyifill the JS Date object to have a strict RFC 3339 string method

readme.md

Date.prototype.toRFC3339String()

Strict RFC3339 does NOT have the milliseconds, but ISO 8601 (Date.prototype.toISOString()) does, so this polyfills it.

RFC3339_PolyFill.js

if (!Date.prototype.toRFC3339String) {
    (function () {

        function pad(number) {
            if (number < 10) {
                return '0' + number;
            }
            return number;
        }

        Date.prototype.toRFC3339String = function () {
            return this.getUTCFullYear() +
                '-' + pad(this.getUTCMonth() + 1) +
                '-' + pad(this.getUTCDate()) +
                'T' + pad(this.getUTCHours()) +
                ':' + pad(this.getUTCMinutes()) +
                ':' + pad(this.getUTCSeconds()) +
                'Z';
        };

    }());
}