Set Date to jquery flipCountDown

Question

Maybe this question is already mentioned before, but I tried all possible ways to add specific date into the code, but it doesn't work.

I'm using jquery.flipCountDown from this link

Here is my code:

<span id="expired"> </span>
<script type="text/javascript">
jQuery(function(){
  var dt = new Date();
  jQuery('#expired').flipcountdown({  
size:'md',
beforeDateTime: '1/01/' + (dt.getFullYear() + 1) + ' 00:00:01'
  });
});
</script>

I want to change above code to something that I'll be able to add specific date into the code with format: Y-m-d to make count down.

For example: 2017-03-18 How to add this date into code to make it count down?

I highly appreciate your help.

thanks in advance