Futures refers to the trading unit, and the trading unit of each futures product is different, such as 5 tons of rubber, soybean meal and corn 10 tons, and gold 1 000 grams.
Futures refers to a futures contract for trading a certain commodity at some future time. Futures trading hours are: 9: 00 am-11:00, afternoon 13:30- 15:00, and afternoon 2 1:00- 00.