early morning [1] ； Pingming; On weekdays, the sun stays on the horizon. According to the color of the sky, the ancients divided the time after midnight into two stages: the crowing of cocks, and the flat day, which refers to the time of dawn. [4]
"Mencius, on the Message": "His daily rest, his calmness, and his likes and dislikes are similar to those of others [2]
Han Dynasty· Liu Xiang New Preface - Miscellaneous 4: "You are so confused that you can stand on your head and listen to the court." Jin· Chen Shou Three Kingdoms Annals· Zhang Liao Biography: "In Pingdan, Liao was armed with a halberd. He ascended and captured Chen first, killed dozens of people, killed two generals, shouted his name, rushed into the base, and came under the command of Quan." [3] Southern Song Dynasty · Bao Zhao 《 Acting Songhouse 》: "Cocks crow in Los Angeles, and the door is closed on the flat." Tang Dynasty· Bai Juyi 《 County Pavilion 》Poem: "On the first day of the day, we can see things, and at noon we can lie down to cover the pass." The Medical School's Golden Mirror - The Secret of Four Diagnosis Mental Skills (Part 2): "When diagnosing the disease pulse, calm the nerves, regulate the breath and examine carefully."
The Marriage Story of Awakening the World - Causing: "If we break off justice, will we have no conscience?"
The Book of the Liang Dynasty: A History of Emperor Wu: "February Xin You Xu Lingfu, the general of logic, saw Bai Guiyi again in Shandong. Bing Yin On a flat day, the clouds and mist on the mountain meet in four directions. In a moment, they are black and yellow, like dragons, more than ten feet long. At first, they are hidden or visible, and they have been ascending from the northwest for a long time. " Pei Yin 《 Collection of Historical Records 》"When the emperor Pingdan came out of the bamboo palace in the suburb of Hanyi, he bowed to the sun in the east and the moon in the west." Before the sun came out of the horizon, the period when the sky was just beginning to shine was called "Pingdan", which is what we now call the time of dawn. This time period is expressed by the local branch as Yin Shi, that is, 3~5 o'clock in the morning every day, that is, the five watch in ancient times. Other names include Pingming, Daming, Liming, Zaodan, Ridan, Bengdan, Morning, Morning Night, Morning Morning, Bengshuang, Danri, Danshi, etc. 
