Five hours. According to Baidu map, it takes five hours from Zibo to Beidaihe, with a distance of 520 kilometers. The detailed route is:

1, first from Zibo to Binzhou via Qing Ji Expressway.

2. Second, from Binbo Expressway to Qinhuangdao via Binda Expressway, Shen Chang Expressway, Zhong Gang Expressway and Xutai Road.

3. Finally, from Qinhuangdao 25 1 Provincial Highway to Qinhuangdao Beidaihe via Haiyang Road.