7:20。 The normal school hours of jianhu county Chengnan Primary School are Monday to Friday, from 7: 20 am to 7: 30 pm 17: 30, so students in this primary school need to arrive at school at 7: 20 am. Jianhu county Chengnan Primary School is a digital, intelligent and international school. With the philosophy of "being knowledgeable, caring for the world and living a better life", we strive to create a characteristic culture of caring education, which is deeply loved by the audience.