Question: I am using **jquery datepicker** to select a date and convert to timestamp (epoch time). The script works arbitrarily. It shows timestamp for dates from 1st to 12th of any chosen month but makes time 12:00am of those days (I converted it online). But from 13th to the end of the month it shows **NAN** as timestamp. Strange enough when the date formated to dd/mm/yy all the days shows correctly.

```
$(function() {
    $("#datepicker").datepicker({dateFormat: 'dd-mm-yy',
        onSelect: function(dateText, inst) {
              var dtV = $(this).val();
              var d = new Date(dtV);
              var s = parseInt((d)/1000);
              $("#selectedDate").text("on " + dateText + "");
              $(".selectedDate2").text(s.valueOf());
        }
    });
});

```

Answer: 
When you call `new Date()`you have to pass a valid date. `dd-mm-yy` is not a valid date for `Date`and it's chenging your month per day.

If you cannot change your date format, try this:

```
onSelect: function(dateText, inst) {
    var dtV = $(this).val();
    var exploded=dtV.split("-");
    var d = new Date(exploded[2],exploded[1],exploded[0]);

```

**EDIT**: Better and shorter, use datepicker's `getDate` to get a `Date` object:

```
onSelect: function(dateText, inst) {
    var d = $(this).datepicker("getDate");

```

<http://jsfiddle.net/9WMvk/>
Following works for me. Just added a **ui-datepicker** class:

```
$(function () {
        $("#txtStartDate").datepicker();
        $('.ui-datepicker').addClass('notranslate');
    });

```