Generally speaking, individuals cannot choose the above date and time of birth unless they choose caesarean section at the right time.
The premise of your question is that the date and time are right, and the eight characters are right. If you choose the wrong date when using the birthday conversion tool, you can naturally choose again. If you think your horoscope is not good, it is basically unrealistic to choose a good horoscope. If you choose caesarean section for the unborn child, this can be achieved.