What is the date of April 25th of the lunar calendar in 2023?

The lunar calendar is a traditional calendar in China, which is also called lunar calendar, Chinese calendar, summer calendar and Han calendar. The lunar calendar is a calendar based on the lunar calendar and combined with the solar calendar. Look at the changing cycle of the moon, and set the date according to the 24 solar terms and the turnover of the sun. If there are years with different lengths, set the leap month balance day.

Due to the combination of yin and yang in the lunar calendar, considering the periodic relationship between the sun, the moon and the earth, the lunar calendar is divided into leap years and peace years. Twelve months in a normal year and thirteen months in a leap year, with a difference of one month between the two years. Months can also be divided into big months and small months. There are 30 days in the big moon and 29 days in the small moon. So in China, if you celebrate the Lunar Birthday, some people can only celebrate it once every few years.

Calculation method of lunar calendar

Lunar New Moon is the first day of the month-the first day of the month. Astronomically speaking, the so-called "new moon" has a definite moment, that is, the ecliptic of the moon is the same as that of the sun.

The lunar calendar is based on the first month of the lunar calendar, but it is not exactly the same as the pure lunar calendar, because the pure lunar calendar is alternately arranged with large and small months, and the size and month of the lunar calendar are determined by calculation.

The first day of each month in the lunar calendar happens to be the "new moon" (that is, when the moon is in the middle of the sun and the earth faces the earth with half of darkness). Sometimes there may be two big months or two small months in a row. Because the first month of the lunar calendar is slightly longer than 29 and a half days, there are about 53 big months and 47 small months in every 100 calendar month of the lunar calendar.