I am using Momentjs to validate a date/time string in Javascript .

```
var day= "Sunday, February 14th 2010, 3:25:50 pm";
var valid=moment(day,"dddd, MMMM Do YYYY, h:mm:ss a").isValid();
alert(valid);

```

This always returns false . I am not sure what the issue is . 

I am using the Momentjs library - <http://momentjs.com/docs/#/parsing/is-valid/> 

I have created a jsfiddle as well - <http://jsfiddle.net/FUDf7/1/>

Please help .