How to write the date of the old yellow calendar?

Just write a date when you put the tin foil red envelope. If you write the lunar calendar on a red envelope, for example, you don't need to write the Gregorian calendar year 20 10, and the ugly year is 20 10, which is the Gregorian calendar year.

The date writing format of tin foil red envelopes is as follows:

1, standard format of Gregorian calendar date: February 6, 2007; Or February 6, 2007.

2. The standard format of lunar calendar date is: the 19th day of the twelfth lunar month in Dinghai.

3. The standard format of the calendar date is: Ding Hainian, Ren Yin, Xin Yue and Wei Ri.

The reference object of the solar calendar is the sun, so the year should be fixed first and then the month should be fixed.

The ancients used a scale to measure the length of the sun shadow. The longest day of the four seasons is called the winter solstice, and the time from one winter solstice to the next is called the tropic of cancer. The length of 365 days is 5: 48: 46. A tropical year is divided into 12 months, big month 3 1 day, small month 30 days and February 28 days.

Extended data:

The yellow calendar, also known as the old yellow calendar, the imperial calendar and the children's calendar, etc. , is a kind of almanac that can display Gregorian calendar, Lunar calendar, Ganzhi calendar and other calendars at the same time, and has a large number of rules and contents related to seeking good fortune and avoiding evil.

The main contents of the Gregorian calendar include: twenty-four solar terms, avoiding bad luck, rushing evil, combining evil, radio, dry branches, twelve gods, on duty, fetal gods, stars, moon phases, evil spirits, jealousy of Peng Zu, six splendors, nine planets, fleeting time, traditional Chinese medicine, mysterious nine planets, weeks, zodiac signs, directions and so on.

The lunar calendar is the solar calendar, and the reference is the moon. It first determines the month, and then determines the year according to the month.

The ancients called the day when the moon was completely invisible "Shuori" and the day when the moon was the most round "Looking at the sun". The new moon is the first day of each month, and the new moon is the fifteenth day of each month. From solar eclipse to lunar eclipse, it is divided into one month, which is called "eclipse month" in legislation. The exact time is 29 days 12 hours, 44 minutes and 3 seconds, about 29 days and a half.

The lunar calendar defines 12 months as one year, which adds up to a little more than 354 days.

Because the moon is easy to observe, its cycle is about 30 days, unlike the 365-day cycle of the sun, so early human civilization used the lunar calendar most of the time.

Baidu Encyclopedia-Yellow Calendar? (China traditional calendar)