There are two kinds of time badges, one is bought from shopping malls, and the role of this time badge is to sell it at auction houses; The other one was bought at an auction house. The function of this time badge is to increase the monthly card time after use. You can understand it as the official card trading channel. If you need gold coins, you can buy them from shopping malls and sell them at auction houses. If you need a monthly card, you can go to the auction house to buy time.