Fortune-telling by nominal age or full age _ Fortune-telling

Is the eight-character departure based on the actual age, that is, one year old or imaginary age?

Generally, computer scheduling starts from an imaginary age, and the luck of two years old is 1990, which actually starts after one year old. There is also a specific time for delivery. If we arrange our own horoscope, the delivery will be based on one year old. Some websites are indicated when they are arranged. Just look at it.