Setting A Custom Session Timeout

//****************************************************************
//****************************************************************
//********** OVERRIDE WORDPRESS DEFAULT SESSION TIMEOUT **********
//****************************************************************
//****************************************************************
add_filter('auth_cookie_expiration', 'my_expiration_filter', 99, 3);
function my_expiration_filter($seconds, $user_id, $remember)
{
  //Set expiration to 48 hrs
  //$expiration = 2*24*60*60;
  
  //Set expiration to 2 weeks
  $expiration = 14*24*60*60;

  //http://en.wikipedia.org/wiki/Year_2038_problem
  if ( PHP_INT_MAX - time() < $expiration )
      $expiration =  PHP_INT_MAX - time() - 5;    //Fix to a little bit earlier

  return $expiration;
}