Preparation code

<script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.0.1/d3.v3.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/moment.js/1.7.2/moment.min.js"></script>
<script>
  Benchmark.prototype.setup = function() {
    var ds1 = '2010-02-03T11:24:14',
        ds2 = '2010-02-03',
        d3DateTimeParser = d3.time.format.utc('%Y-%m-%dT%X').parse,
        d3DateParser = d3.time.format.utc('%Y-%m-%d').parse;
    
    function parseMoment(ds) {
      return moment.utc(ds).toDate();
    }
  };
</script>

Preparation code output

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var date = parseMoment(ds1);
console.assert(date.getTime() == 1265196254000);

var date = d3DateTimeParser(ds1);
console.assert(date.getTime() == 1265196254000);

var date = parseMoment(ds2);
console.assert(date.getTime() == 1265155200000);

var date = d3DateParser(ds2);
console.assert(date.getTime() == 1265155200000);

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