function to parse iso8601 dates in angular.

parseDate.js

angular.module('parseDate', [])
  .value('parseISO8601Date', function (s){
    // from http://n8v.enteuxis.org/2010/12/parsing-iso-8601-dates-in-javascript/

    // parenthese matches:
    // year month day    hours minutes seconds  
    // dotmilliseconds 
    // tzstring plusminus hours minutes
    var re = /(\d{4})-(\d\d)-(\d\d)T(\d\d):(\d\d):(\d\d)(\.\d+)?(Z|([+-])(\d\d):(\d\d))/;

    var d = [];
    d = s.match(re);

    // "2010-12-07T11:00:00.000-09:00" parses to:
    //  ["2010-12-07T11:00:00.000-09:00", "2010", "12", "07", "11",
    //     "00", "00", ".000", "-09:00", "-", "09", "00"]
    // "2010-12-07T11:00:00.000Z" parses to:
    //  ["2010-12-07T11:00:00.000Z",      "2010", "12", "07", "11", 
    //     "00", "00", ".000", "Z", undefined, undefined, undefined]

    if (! d) {
      throw 'Couldn\'t parse ISO 8601 date string \'' + s + '\'';
    }

    // parse strings, leading zeros into proper ints
    var a = [1,2,3,4,5,6,10,11];
    for (var i in a) {
      d[a[i]] = parseInt(d[a[i]], 10);
    }
    d[7] = parseFloat(d[7]);

    // Date.UTC(year, month[, date[, hrs[, min[, sec[, ms]]]]])
    // note that month is 0-11, not 1-12
    // see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date/UTC
    var ms = Date.UTC(d[1], d[2] - 1, d[3], d[4], d[5], d[6]);

    // if there are milliseconds, add them
    if (d[7] > 0) {
      ms += Math.round(d[7] * 1000);
    }

    // if there's a timezone, calculate it
    if (d[8] !== 'Z' && d[10]) {
      var offset = d[10] * 60 * 60 * 1000;
      if (d[11]) {
        offset += d[11] * 60 * 1000;
      }
      if (d[9] === '-') {
        ms -= offset;
      } else {
        ms += offset;
      }
    }
    return new Date(ms);
  });