Is the birthday on the ID card lunar or solar?

The birthday on the ID card is the solar calendar.

The month and date of the solar calendar are very consistent with the position of the sun on the ecliptic. According to the date of the solar calendar, we can clearly see the changes of cold and warm seasons in a year. But every month, you can't see the new moon, the new moon, the new moon.

At present, the Gregorian calendar, which is commonly used in the world, is a solar calendar, with 365 days in a normal year and 366 days in a leap year, once every four years, once in a hundred years and once again in the 400th year, that is, there are 97 leap years every 400 years. The average length of the Gregorian calendar is only 26 seconds away from the tropic year, and it takes only one day to accumulate 3300 years.

Extended data

There are four kinds of solar calendars in China: the dry calendar, the twelve-year calendar, the celestial calendar and the easy solar calendar.

1, dry calendar

The China lunar calendar is a combination of yin and yang, the lunar calendar (lunar calendar) is the fifteenth day of the first lunar month, and heavenly stems and earthly branches is the relationship between the sun and the earth, which is a solar calendar. The twenty-four solar terms and December are the basic contents.

2. 12 calendar

Twelve calendars were created by Shen Kuo, an outstanding scientist and politician in the Northern Song Dynasty, during the Song Shenzong period. In the old calendar of Shen Kuo's previous dynasties, twelve full moons and short moons were regarded as the standard of a year. Although it has been reformed many times, it is still full of controversy and confusion, losing its position at four o'clock and complicated arithmetic process.

3. Calendar

The calendar is actually a twelve-year calendar. Hundreds of years after the Northern Song Dynasty, 1855 was promulgated and used by the Taiping Heavenly Kingdom, and later spread to Britain, and this method is still used to count agricultural climate and agricultural output.

4. Yi solar calendar

The Yi solar calendar divides a year into 10 months. Every month begins with rat day as a month, and 12 zodiac cycles three times, and ends with pig day at the end of each month, for a total of 36 days. There are 360 days in a year, and the remaining five or six days are New Year's Day. 10 months is not counted.

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