Please explain the birthday and its meaning accurately.

Birthday is actually a person's specific time of birth, which is only expressed in the form of heavenly stems and earthly branches.

People who use the horoscope of birth to tell fortune infer many problems in a person's life according to the information of birth date.

Including many visible and invisible, past and future.

Thousands of years of history has also proved that the birth calculation algorithm has certain reasonable connotation and certain reference value.