8: 00 am-12: 00 am and 2: 30-5: 30 pm from Monday to Friday. Weihai health certificate can be handled in Weihai CDC and Wendeng CDC. The business hours of Weihai CDC are 8: 00 am-12: 00 am and 2: 30-5: 30 pm from Monday to Friday. Weihai, alias ahava, is a prefecture-level city under the jurisdiction of Shandong Province. It is located in the east of China, at the eastern end of Shandong Peninsula, and borders the Yellow Sea on three sides: north, east and south.