The second of the three volts. Also called two volts. It usually refers to the fourth Geng day from summer to the day before the first Geng day after beginning of autumn.

Tang Jiaoran's Five Words Serve Lu Shijun Changyuan Water Hall to Enjoy the Cool: "In mid-June, Shuixuan is often sad."

Song Huihong's "Good words for making tea with Yang Bangji in summer": "It's hot and rainy, so go to your home first."

Ceng Gong's poem "Bitter Heat" in Song Dynasty: "When I recall junior high school, I am depressed and angry."

See "Three Volts" for details.