protected static function get_schedules() {
		$schedules = wp_get_schedules();
		if ( ! empty( $schedules ) ) {
			uasort( $schedules, 'Cron_Schedule_Command::sort' );
			$schedules = array_map( 'Cron_Schedule_Command::format_schedule', $schedules, array_keys( $schedules ) );
		}
		return $schedules;
	}