As long as the server of the futures company is open, you can log in, and since there is no transaction on the weekend, it is not excluded that the futures company will use this time to settle accounts or sort out data. In a word, it is not necessary for him to be open 24 hours a day. Besides, it's useless for you to go online at this time. All services are suspended. You can check your network connection and try to change several servers when choosing the login server. Maybe nothing else is off. The operation of futures is similar to that of stocks, except that futures have one more choice than stocks and can be short. The specific operations are divided into two situations: long and short. Long: judging that the subsequent market will rise, you can buy futures contracts at a low price, wait for the price to rise to the target price, sell and close the position, and make money in the middle; Short selling: judging that the subsequent market will fall, you can sell the futures contract at a high level first, and then buy and close the position at a low price after the price falls, and the profit is also the difference.