Those who work in the field all the year round can definitely sum up such a rule.

The more economically developed the place is, the later the quiet night comes.

a poor mountain village.

As soon as it gets dark, not many people go out.

in a small county.

At eight or nine o'clock in the evening, there were not many people in the street.

A second-tier city like Castle Peak.

By 11 p.m., there will still be young people in twos and threes looking for restaurants open 24 hours a day.

In an international metropolis like Pearl.

There is nothing wrong with describing a city that never sleeps.

But...