What is a perpetual calendar?

The perpetual calendar is the oldest solar calendar in ancient legends of China. A perpetual calendar is an annual calendar that records the dates of specific solar and lunar calendars within a certain time range (such as 100 years or more), which is convenient for people in need to query and use. Ten thousand years is just a symbol, indicating a long time span. [ 1]

The perpetual calendar used is an almanac that contains or is suitable for several years [2]. Modern perpetual calendars can display various calendars such as solar calendar, lunar calendar, and dry calendar at the same time, and can also contain various functional information such as good or bad luck, holidays, reminders, etc., which is very convenient for people to query and use.

Chinese name

perpetual calendar

Foreign name

perpetual calendar

explain

Almanac suitable for many years

attribute

This is an almanac, not a calendar.

function

Yellow calendar, holidays, solar calendar, lunar calendar and date should be avoided.

quick

navigate by water/air

Choose a day and avoid it.

Gregorian calendar and lunar calendar

Perpetual calendar application

Online perpetual calendar

conversion method

Song formula of Ganzhi calendar

Historical legends

According to legend, a long time ago, there was a young man named Wannian who saw that the festival at that time was very chaotic and wanted to make it accurate. One day, he went up the mountain to cut wood and sat in the shade to have a rest. Inspired by the movement of the shadow, he designed a coffin to measure the sun and calculate the time. But it was raining and foggy at that time, which affected the measurement. Later, the dripping spring on the cliff aroused his interest, and he began to make a five-story clepsydra. As time went on, he found that the length of the weather would repeat every 360 days.

At that time, the monarch was called Zu Ti, and the unpredictable weather made him very upset. A minister named Aheng, in order to please the emperor, said that he would set up a rooftop to worship the gods. Zu Ti thought it was reasonable, so he led officials to make sacrifices to heaven, but to no avail. Knowing that ten thousand years later, I couldn't help but go to see the emperor with a sundial and a clepsydra and explain to Zu Ti why the sun and the moon run. Zu Ti was very happy after hearing this and felt reasonable. So I left for ten thousand years and built the Sun and Moon Pavilion in front of the Temple of Heaven, as well as the sundial platform and the Leaky Pot Pavilion. Send twelve boys to serve for ten thousand years. Zu Ti said to Wannian: "I hope you can accurately measure the laws of the sun and the moon, calculate the exact time in the morning and evening, and create a calendar for the benefit of the people all over the world."

On one occasion, Zu Ti sent a message to Ah Heng asking about the progress of the perpetual calendar. When he boarded the Sun Moon altar, he saw the inscription on the stone wall next to the Temple of Heaven: Start all over again in 360 weeks after sunrise and sunset. Vegetation is divided into four seasons, and there are twelve circles in a year.

When Ah Heng saw this, he knew that the study of perpetual calendar was successful, and his heart was uneasy. He was extremely afraid that the monarch would blame himself for putting forward the idea of offering sacrifices to the gods because he had been loved by calendar makers for thousands of years. So he plotted and sent an assassin to get rid of Wan Nian. The assassin climbed up the Sun Moon Pavilion and saw Wannian watching the stars on the pavilion, so he drew an arrow with his bow and prepared to shoot him. Who knows, the assassin was found by the guards and arrested on the spot. When Zu Ti learned of this, he punished Ah Heng and personally went to Riyuege to visit Wan Nian. Wan Nian pointed to the astronomical phenomena and said to Zu Ti, "It's been twelve months now, the old year has passed and the new year has begun again. Please make a festival for you. " Zu Ti said, "Spring is the beginning of a year. Just call it the Spring Festival. " Winter goes and spring comes, year after year. Later, after long-term observation and careful calculation, it took 10 thousand years to calculate the accurate solar calendar. When he showed his successor the solar calendar, he was covered with silver whiskers. The monarch was deeply moved. In order to commemorate the achievements of 10 thousand years, he named the solar calendar "perpetual calendar" and named it the birthday star of the sun, moon and moon. In the future, people will hang up the Shou Xingtu during the Chinese New Year, which is said to commemorate the venerable ten thousand years. This is the origin of the Spring Festival. [3]

Choose a day and avoid it.

In the Gregorian calendar, what most people watch every day should be what to do and what not to do. Numerologists and Japanese schedulers are also recorded in this column, and the reference of daily prosperity and adversity is added to decide the date for others. After readers know it, they don't have to look for a scheduler in the future. But if it involves personal eight-character projects, you still have to find someone to line up. If you want to check the auspicious day yourself, you don't need a fortune teller, you can turn to the perpetual calendar to check the taboos of the day. For example:

Take 1985 1 month 1 day as an example, the contents are as follows:

Suitable: making the bed, collecting money, planting plants, weaving nets, cleaning the house, offering sacrifices, bathing, cutting clothes, entering people, and adjusting hands and feet.

Avoid: opening the market, cutting hair, grazing, collecting livestock, making livestock strong, logging, making beams, burying, breaking ground and opening graves.

We can get a general idea from the text. To "open the market", we can choose three days instead of one day. The season is in the meridian sea, that is, from 1 1 am to 1 am, from 1 1 pm to 7: 00 pm and from 9: 00 pm to1pm. In terms of schedule, it is best to choose between 1 1: 00 in the evening and 1: 00 in the afternoon. In addition, pay attention to the "rushing rabbits to ward off evil spirits" on that day, and people who are rabbits should avoid going east. By combining these projects, you can become a day planner.