change cookie expire time wordpress
add_filter('auth_cookie_expiration', 'expiration_filter', 99, 3);
function expiration_filter($seconds, $user_id, $remember){
//if "remember me" is checked;
if ( $remember ) {
//WP defaults to 2 weeks;
$expiration = 14*24*60*60; //UPDATE HERE in seconds;
} else {
//WP defaults to 48 hrs/2 days;
$expiration = 2*24*60*60; //UPDATE HERE in seconds;
}
return $expiration;
}