How long does it take to express from Anhui to Guangzhou?

It takes 3 days for Anhui (Hefei) to go to Guangdong (Guangzhou) by express mail ... Anhui and Guangdong are provinces, not addresses. Press: It's about1400km from Anhui (Hefei) to Guangdong (Guangzhou), which is very far, but now expressway is very developed and still very fast. If the express delivery is from Anhui (Hefei) to Guangdong (Guangzhou),