How to write the lunar calendar and the lunar calendar on the 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 20 10 years after the first day of the twelfth lunar month, and the ugly year is 20 10 years. This is the calendar chronology. If you write 20 10 years, it will be heavy.

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 lunar calendar is the solar calendar, and its reference is the moon. It first determines the month, and then determines the year on the basis of 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". Shuori is the first day of each month, and Wangri is the fifteenth day of each month. It takes a month from Shuori to Wangri, and then to Shuori, which is called "Shuowangyue" 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, that is, a little over 354 days.

Because the moon is easy to observe, with a cycle of about 30 days, unlike the sun, which has a cycle of 365 days, most early human civilizations used the lunar calendar.

References:

Baidu Encyclopedia-Huangli