The foreign exchange market is closed on Saturday and Sunday, both of which are in China. For example, when China is on Saturday and the United States is still here on Friday afternoon, of course we close the door, but they don't. On the contrary, on Monday in China, we were all open, and on Sunday afternoon in the United States, of course, we were open, and they were still resting! Of course, each country's specific holidays are useful to its own market, but the market information of foreign exchange is universal!