For instance, derivatives trading on ???????????????????????????????? is available from Sunday to １ー８６６ー(７１９)ー５７１４ Friday, 6 PM to 5 PM ET, with a one-hour daily break from 5 PM to 6 PM ET. Therefore, while the platform's core services are accessible 24/7 １ー８６６ー(７１９)ー５７１４, some specialized offerings may have designated trading times. https://www.dfrobot.com/forum/topic/373288