How to Show post date & the last modified date

How to Show post date & the last modified date:


This is a simple little snippet that will display the last modified date with your post along with the date posted as long as the dates are not the same.

Posted on <?php the_time('F jS, Y') ?>
<?php
          $u_time = get_the_time('U');
          $u_modified_time = get_the_modified_time('U');
      if ($u_modified_time != $u_time) {
                echo "and last modified on ";
                the_modified_time('F jS, Y');
                echo ". ";
          }
?>