What do spring and September mean?

Yangchun September refers to the September of the lunar calendar, when the temperature is getting warmer and the weather is as warm as spring, so it is called "Yangchun".

This word is often used in literary works to describe the weather in autumn to express a warm and pleasant atmosphere.

In the traditional culture of China, March in the spring is usually regarded as the beginning of spring, while September in the spring is the end of autumn and the prelude to winter. During this period, the temperature gradually drops and the weather turns cold, but sunny days can still bring a warm feeling.