Are you asking how to calculate the dawn time? Dawn time is from five to seven in the morning.
Sunrise at Mao hour, 5 to 7 o'clock in the morning. It's the dawn. The time between 5 a.m. and 7 a.m. in the morning refers to the time when the sun first appears and the sun rises.
Shuguang is a Chinese word, which means the sunshine at dawn, a metaphor for the bright future that is already in sight. From Tang Yanqian's poem "Encountering snow during an early morning journey." The chickens and dogs are silent, and the dawn shines on the cold color.