Convert Date Value to Timestamp - Post Request - Ember.js

My handlebars code is as followed.

Here the user picks a date from a calendar to get the from date. This is for a form.

My problem is the format is as followed: Sun May 29 2016 00:00:00 GMT-0700 (PDT) and the post request requires a timestamp format.

SO

all the code sample I've seen to fix these problems, require the date in the function.

example:

var myDate="26-02-2012";
myDate=myDate.split("-");
var newDate=myDate[1]+"/"+myDate[0]+"/"+myDate[2];
alert(new Date(newDate).getTime());

or

function toTimestamp(year,month,day,hour,minute,second){
    var datum = new Date(Date.UTC(year,month-1,day,hour,minute,second));
    return datum.getTime()/1000;
}

or

var fromFormat = moment('from').fromFormat(moment(), 'milliseconds');

but I only have the name value as it changes all the time.

I've got moment-js, date-picker and a couple other add-ons. Any resources or code snippets will be appreciated.