Wechat reading can exchange reading time for a free experience card. Reading a book for one minute can change a day's experience card. Read for one hour, three hours, five hours, two days and four days, and you can change your experience card for one day. You can get a two-day experience card after reading for seven days. You can change your experience card for five hours and eight days every day of the week. If you don't use the experience card, it will expire. You need to become a member again or have an unlimited card experience card to continue reading.