I’ve been trying to get some type of timetable or year B.C. of Adam’s birth and I can’t get any scriptural reference to this? I look forward to hearing from you.
There are no extant records of the year of Adam’s birth. As a matter of fact, he was not even born on this earth, but on another world. Adam was one of the participants in creating this world. In that enterprise he was known a Michael, the Archangel. Brigham Young tells us that he brought the plants and animals from other worlds to this earth, and finally brought his wife, Eve, with him and stayed here (Journal of Discourses 3: p. 319). During all that activity, time was not measured as we know it now, but the earth was on a celestial time scale —
And the Lord said unto me, by the Urim and Thummim, that Kolob was after the manner of the Lord, according to its times and seasons in the revolutions thereof; that one revolution was a day unto the Lord, after his manner of reckoning, it being one thousand years according to the time appointed unto that whereon thou standest. This is the reckoning of the Lord’s time, according to the reckoning of Kolob (Abr 3:4).
The earth was on the celestial time scale up until the time that Adam and Eve were expelled from the Garden of Eden—
But of the tree of knowledge of good and evil, thou shalt not eat of it; for in the time that thou eatest thereof, thou shalt surely die. Now I, Abraham, saw that it was after the Lord’s time, which was after the time of Kolob; for as yet the Gods had not appointed unto Adam his reckoning (Abr 5:13).
Therefore, all our erstwhile archaeological, anthropological and paleontological chronologers haven’t a leg to stand on because they are attempting to use a telestial time scale before the world had fallen to a telestial state.
Perhaps your question would be better posed by asking when Adam and Eve were expelled from the Garden of Eden. Again, there are no extant records of that date either. However, it has to do with telestial time, so some rather realistic estimates can possibly be made. However, there is no general concurrence on when that event took place. Moses, who wrote the only historical record about the advent of Adam and Eve, recorded no date for that event, but several estimates have been made by those who have recorded man’s early history. The Hebrew records place the intervening time from the expulsion from the Garden to the universal flood as 1656 years. Samaritan texts record it as 1307 years, whereas in the Septuagint it is recorded as 2262 years. So there is no true answer to your question, only various guesses.