East Asian age reckoning is a concept and practice that originated in China and is widely used by other cultures in East Asia. Newborns start at the age of one year, and at the beginning of lichun (usually February 4, sometimes February 5) which is the first of the 24 solar terms, one year is added to the person's age. In other words, the first year of life is counted as one instead of zero, so that a person is one year old in their first year, two years old in their second, and so on. Since age is incremented on the beginning of solar term rather than on a birthday, people may be one or two years older in Asian reckoning than in the modern age system.