Maoshi is from 5:00 to 6:59 in the morning. Maoshi, sunrise, also known as sunrise, dawn, sunrise, etc.: refers to the time when the sun just appeared and was rising. It is the time when the ancient official office began to work, so it is also called Dianmao. It is also called sunrise because it is rising slowly towards the east at dusk. In modern life, time is recorded in hours, minutes and seconds. However, in ancient China, the time recording method was very Chinese, that is, the Twelve Earthly Branches. The twelve hour system was used in the Western Zhou Dynasty. In the Han Dynasty, it was named as midnight, Jiming, Pingdan, sunrise, Shishi, Yuzhong, Rizhong, Japanese products, Fushi, Rijin, dusk, and Rending. It is also expressed by the twelve local branches, with 23 o'clock to 1 o'clock as the sub hour, 1 o'clock to 3 o'clock as the ugly hour, and 3 o'clock to 5 o'clock as the yin hour, and then recursively.