If two children are conceived on the same day but one is born prematurely, both children are technically the same age.

Czeron@lemmy.world to Showerthoughts@lemmy.world – -19 points –

Because of the date of conception and all that.

4

No they are not. Birthdays are calculated from the day of birth, hence birthdays. And zygotes are not yet people, no matter what the forced-birthers tell you.