Three years. He Huanlu Zhouyi Naming Forecasting Studio in Lianhu District, Xi'an City was established in 2019 and is located in Xi'an City, Shaanxi Province. It is an enterprise mainly engaged in resident services. As of November 24, 2022, it has been three years since the Zhouyi-named prediction studio of Xi'an City God Temple was named. It is located in the Chenghuang Temple compound on West Street, Lianhu District, Xi'an City.