72 hours. Wuyue Square in Nanchang New District is located on the west side of Long Avenue and the south side of Zishi Road in Nanchang New District. According to the announcement issued by Nanchang Epidemic Prevention and Control Working Group on August 4, 2022, since 0: 00 on August 4, 2022, the negative certificate of nucleic acid detection in public places in Nanchang has been adjusted from 48 hours to 72 hours.