#woocommerce finalizar sesión

functions.php

<?php

add_filter('wc_session_expiring', 'so_26545001_filter_session_expiring' );

function so_26545001_filter_session_expiring($seconds) {
    return 60 * 29; // 29 minutos
}

add_filter('wc_session_expiration', 'so_26545001_filter_session_expired' );

function so_26545001_filter_session_expired($seconds) {
    return 60 * 30; // 30 minutos
}

https://stackoverflow.com/questions/26545001/how-to-clear-an-abandoned-woocommerce-cart