<?php
/**
* Filter the duration of the authentication cookie expiration period.
*
* @since 2.8.0
*
* @param int  $length   Duration of the expiration period in seconds.
* @param int  $user_id  User ID.
* @param bool $remember Whether to remember the user login. Default false.
*/
function tp_cookie_expiration( $expiration, $user_id, $remember )
{
  return $remember ? $expiration : 600; // 10 minutes
}
add_filter( 'auth_cookie_expiration', 'tp_cookie_expiration', 99, 3 );