how to show record by upcoming month selected option from dr

Question

<select class="form-control pull-left" style="width:150px;" ng-init="sortContacts='+name'" ng-model="sortContacts">
<option value="birthday">Sort by birthday</option>
<option value="+name" selected="selected">A-Z</option>
<option value="-name">Z-A</option>

</select>

 

I want to show upcoming birthday using filter and at the same time the record in ascending and desc oreder how can i achieve this using a common filter?

waiting for the reply.