Is there a saying of the week and the month in ancient times?

The concept of "Zhou" was introduced into China in Tang Dynasty. In traditional astronomy, there is the concept of week. However, in daily life, weeks are rarely used to measure time. China used "ten days" to express a similar concept of time.

Japan Obsidian Day is Sunday, Month Obsidian Day is Monday, Fire Obsidian Day is Tuesday, Water Obsidian Day is Wednesday, Obsidian Day is Thursday, Jin Obsidian Day is Friday and Earth Obsidian Day is Saturday. Later, Yao Sujing was introduced to Japan by students of the Tang Dynasty in Heian period, and became an important classic of Yao Suxing's astrology or esoteric astrology in Japan. It was also used as the title of Seven Obsidian in China. After the founding of the Republic of China, Sunday was renamed Saturday, but Japan, South Korea and North Korea still use this name.

In ancient China, there was no concept of worship, only the concept of greeting. The so-called greeting time is a concept of time. In ancient China, five days was a waiting time, three waiting times were one day, and two days were one day. One section is a month. So there are twenty-four integrity days in a year.

There were four kinds of calendars in ancient China:

(1) ordinal date method. Such as Meihualing: "On the 25th, the city fell, and the brave men drew their swords and cut themselves." "Ling Xuan Zhi": "March 5th night, half of the month. ... "May 3rd" refers to the 15th day of the lunar calendar.

Preface to the story of the July 12th Martyrs in Huanghuagang: "The worst death was the siege of Guangdong and Guangxi on March 29th,191.

(2) the method of recording the day. For example, The Battle of Dishes: "In summer and April, Xin Si defeated Qin Jun with vegetables." "Xin Si in April" refers to the 13th day of April in the lunar calendar; "Shi Zhongshan Ji" "Ding Chou in June of the seventh year of Yuanfeng", that is, June 9 of the lunar calendar;

"Climbing Mount Tai" refers to this month 18. The ancients also used heavenly stems or earthly branches to represent specific days. For example, "Zi Mao is unhappy" in the Book of Rites, which refers to an evil day or a taboo day.

(3) Moon phase and date method. Refers to the use of "new moon, non-,prosperous, both prosperous and beneficial" to mark the day. The first day of each month is called the new moon, the third day of each month is called the moon, and the middle of the month is called the moon (the fifteenth day of a small month and the sixteenth day of a big month). The day after the moon is called hope, and the last day of each month is called cloudy. For example, "Watching the sun in July is also a thing" in "Salute to Sisters"; "Five Tombstones" and "Looking at Ding Mao in March"; "Red Cliff Fu" is "endless in autumn, looking forward to July"; "Book with Wife" "First marriage for three or four months, looking forward to winter".

The picture comes from the internet.

(4) Both the trunk and the moon should be used. Before the dry support is placed, after the moon phase is arranged. Such as "Climbing Mount Tai": "Wu Shenhui, five drums, sitting in the pavilion with Zi Ying.

24 solar terms refers to the 24 specific solar terms in the China lunar calendar, which are formulated according to the change of the earth's position on the ecliptic (that is, the earth's orbit around the sun), and each solar term corresponds to a certain position reached by the earth every time it runs 15 on the ecliptic. The twenty-four solar terms are divided into 12 neutral solar terms and 12 solar terms, which correspond to each other one by one. The twenty-four solar terms reflect the annual apparent motion of the sun, so their dates are basically fixed in the Gregorian calendar. The solar terms in the first half of the year are on the 6th, the solar terms in the second half of the year are on the 8th and the solar terms are on the 23rd, with a difference of less than 1-2 days.