Simply Static: Run a full static export daily.

functions.php

<?php

register_activation_hook( __FILE__, 'ss_setup_static_daily_export_cron' );

/**
 * Setup a cron job to run daily.
 *
 * @return void
 */
function ss_setup_static_daily_export_cron() {
	if ( ! wp_next_scheduled( 'ss_static_export_daily_cron' ) ) {
		wp_schedule_event( time(), 'daily', 'ss_static_export_daily_cron' );
	}
}

add_action( 'ss_static_export_daily_cron', 'ss_run_static_export_cron_daily' );
/**
 * Run a full static export daily.
 *
 * @return void
 */
function ss_run_static_export_cron_daily() {
	// Full static export
	$simply_static = Simply_Static\Plugin::instance();
	$simply_static->run_static_export();
}