When is the lunar calendar?

The lunar calendar is the lunar calendar and the solar calendar is the Gregorian calendar. On the calendar, Arabic numerals indicate the date of the solar calendar and Chinese characters indicate the date of the lunar calendar.

The solar calendar goes fast, but the lunar calendar goes slow. For example, 65438+19 Gregorian calendar/0/0/day is called New Year's Day, which is also called Gregorian calendar year. At this time, the 26th of the lunar calendar 1 1 has just arrived.

The calendar legally used in People's Republic of China (PRC) is Gregorian calendar, which is common in most countries in the world. So the date of birth on the ID card is the solar calendar, and the date of birth certificate issued by the hospital is also the solar calendar. All legally binding documents are certified by the solar calendar. In other words, the date of birth is the date of the month, not the date of the lunar calendar.

Real age and nominal age

Actual age: an accurate age calculation method adopted by law, which is calculated from the date when the fetus is born from the mother. It is 0 years old at birth, and one year old is added for every birthday thereafter.

Nominal age: the algorithm varies from place to place. When the fetus gives birth to the mother, it is "1 year", which increases by one year every year in the Lunar New Year.

East Asian tradition

One year old is the baby's first birthday after birth. Traditionally, there will be a special celebration called the one-year-old celebration, and a catch-up week will be held. Old people like to celebrate the birthdays of fifteen or some special people, which is called "birthday celebration", such as 50th birthday, 60th birthday, 66th birthday and so on.