Are you referring to a day being like a thousand years? So in the case of a Jubilee cycle being 49 years and the 50th year is also year #1 of the next Jubilee cycle. Having also provided the
45 proofs of documentation when the sabbatical and jubilee years are, we would have to conclude that 20 Jubilee cycles are 49 x 20 = 980 years. So it is not always true that the Bible speaks literally but at times it speaks figuratively .
Remember that Adam was to die the same day that he ate of the Tree of Knowledge of Good and Evil? The Bible tells us Adam died at age 930 years old. So if day #1 is 980 years, Adam did die in the same day he ate of it.