When does it get dark in Puyang in August?

It will be dark at about eight o'clock.

In August in the north, it doesn't get dark until eight o'clock in the evening, because it is still hot in August in the north, and it is still in a stage of midsummer. At this time, it was late and hot. If it is completely dark, it may not be dark until 8: 30, but it will be dark earlier when it is cold in September.