1-3 days. It's about 900 kilometers from Shanghai to Zhengzhou. Express delivery only takes one day, usually two days, and it won't take more than three days to receive the mail. In case of traffic control, rainstorm, snow, flood, ice disaster, earthquake, holiday, 6 18 anniversary, power failure and other factors, as well as orders, books, bulk commodities delivered by third-party sellers. , they are not within the scope of "next day arrival" service.