Well, I said “The Bible does not tell us how long Adam and Eve were in the garden of Eden before their fall from grace but they apparently sinned before Eve bore Cain and Abel (Genesis 4).”
Accordingly, I think we can only speculate and possibly ‘reasonably assume’ on the duration of Adam and Eve’s stay in the garden of Eden before their sin with the consequence of being driven out of the garden of Eden. Since the scriptures do not explicitly tell us exactly how long Adam and Eve lived in the garden of Eden before their sin, any speculation as to the duration of their stay there would simply be a matter, I believe, of speculation or theological opinion. The Church as far as I know has not given an opinion on this matter which would require an assent of catholic faith. Nor do I believe it ever will as it appears God did not deem it necessary to reveal it explicitly from a reading of the word of God. The sacred writer inspired by God was concerned with more important theological matters than the precise duration of time Adam and Eve lived in the garden of Eden before their sin. Consequently, it appears that a catholic can have various opinions on the matter whether one thinks in terms of hours or minutes or days, weeks, months, or even years. I personally believe Adam and Eve were in the garden of Eden longer than hours or minutes before they sinned. I would give them at least some days if not weeks, months, or even years.
According to Genesis 2, God created Adam, the man, first, then placed him in the garden of Eden to till it and to keep it. Then Adam named all the animals after which God created Eve from Adam’s side. How long Adam lived in the garden of Eden enjoying God’s friendship and the gift of sanctifying grace before God made Eve from Adam, we can only speculate. Probably not long, as God knew he was going to make a woman from Adam’s body to be his wife and which the human race would be propagated. I give it at least a day or two or possibly more, maybe many days, who knows?
In Genesis 1, God gives the command to the male and female he created on day six which is Adam and Eve in Genesis 2, “Be fruitful and multiply, and fill the earth and subdue it.” Did God give this command to Adam and Eve immediately after he created Eve from Adam’s side in Genesis 2? Genesis 2 doesn’t tell us and we probably cannot say with certainty that the command to be fruitful and multiply was given ‘immediately’ to Adam and Eve minutes after he created them in Genesis 1. Maybe God allowed Adam and Eve a kind of ‘spiritual’ honeymoon in the garden of Eden before they actually had intercourse with one another; at least a whole day if not many more. Before they sinned, Adam and Eve were not driven by lust for one another. Mary and Joseph were married and had great love for one another but they never had intercourse. Their marriage was a spiritual union which I think is the essence of married love from which follows the bodily union and the procreation of offspring. Interestingly, St Thomas Aquinas in his Summa Theologica makes a comment about Adam and Eve receiving a general divine command relative to generation [probably the 'be fruitful and multiply] as well as awaiting a special command relative to the time (ST, Part I,q. 98, reply to obj. 2).
After Cain slew Abel, the scripture says "And Adam knew his wife again, and she bore a son and called his name Seth, for she said, “God has appointed for me another child instead of Abel, for Cain slew him.” (Genesis 4:25). In Genesis 5:3, the scripture says “When Adam had lived a hundred and thirty years, he became the father of a son in his own likeness, after his image, and named him Seth.” So, Adam and presumably Eve lived 130 years before Seth was born. In fact, in the genealogies of the patriarchs before Noah, the youngest which the scripture says a patriarch became the father of some child is 65 years old; which afterwards it says “and had other sons and daughters.” Presumably, the other sons and daughters came after where the scripture says and so and so “became the father of …” I suppose some of the ‘other sons and daughters’ could have been begotten before the scripture says "became the father of’ so and so. I am commenting on one might say a surface reading of the text without looking meticulously into it at the present.
Presumably, Seth is the third son of Adam and Eve (cf. Genesis 4:25) who was born when Adam had lived 130 years (cf. Gen. 5:3). Gen. 4: 17-24 concerning Cain, his wife and descendants possibly should be placed after the birth of Seth. Adam and Eve had other sons and daughters (Gen. 5: 4) not all of whom are mentioned by name in the scriptures and Cain’s wife was probably his sister, a daughter of Adam and Eve (i.e. not a granddaughter of Adam and Eve).
The point is that Adam and Eve may have lived in the garden of Eden many years before they transgressed God’s commandment to not eat the forbidden fruit and before they had any children.