Period
22 July 2021 (solar calendar)
Introduction
"Daeseo" (大暑), which literally means "great heat," is the twelfth of the twenty-four seasonal sub-divisions, or solar terms, of the lunar calendar. The season includes "Jungbok (中伏)," which is one of the three hottest summer days along with "Chobok" and "Malbok." It is the fourth Gyeong Day (庚日) after "Haji," the summer solstice.