Thank you for the question on the origin of Adam and Eve, “Were Adam and Eve born on the same day?”’
The Scriptures state that Adam and Eve were not born on the same day. They were created on the same day.
The word, born, assumes a pregnancy and birth. Adam and Eve did not have parents who conceived them and gave birth to them. The Scripture described their origin as God creating them.
Genesis 2 gives a greater detail on the circumstances of their creation. The text says this, “7 Then the LORD God formed a man from the dust of the ground and breathed into his nostrils the breath of life, and the man became a living being. 8 Now the LORD God had planted a garden in the east, in Eden; and there he put the man he had formed… 8 The LORD God said, “It is not good for the man to be alone. I will make a helper suitable for him.”
19 Now the LORD God had formed out of the ground all the wild animals and all the birds in the sky. He brought them to the man to see what he would name them; and whatever the man called each living creature, that was its name. 20 So the man gave names to all the livestock, the birds in the sky and all the wild animals. But for Adam no suitable helper was found. 21 So the LORD God caused the man to fall into a deep sleep; and while he was sleeping, he took one of the man’s rib and then closed up the place with flesh. 22 Then the LORD God made a woman from the rib he had taken out of the man, and he brought her to the man.
23 The man said, “This is now bone of my bones and flesh of my flesh; she shall be called ‘woman,’ for she was taken out of man.” 24 That is why a man leaves his father and mother and is united to his wife, and they become one flesh” (A searchable online Bible in over 150 versions and 50 languages).
SUMMARY: God created Adam and Eve. Adam and Eve became the first parents after their own kind, humans made in the image and likeness of God.
For more perspectives:
https://www.quora.com/Were-Adam-and-Eve-born-on-the-same-day