Rolling lead time display using WordPress. Tutorial: http://zoerooney.com/blog/tutorials/add-a-rolling-date-in-wordpress/

rolling-date-snippet.php

<?php 
  // create a variable, use it to get the lead time digit from an ACF custom field
  $lead_time = get_field('lead_time'); 
  // then display the date relative to that lead time
  echo date('F Y', strtotime('+'.$lead_time.' weeks')); 
?>