Babylon fell 539 B.C.E
"Babylon fell in 539 B.C." Babylon the Great Has Fallen - God's Kingdom Rules p.184
"October 5, 539 B.C.E. (Gregorian calendar), when Babylon fell before the invading Medo-Persian armies under the command of Cyrus the Great." - it-1 236 Babylon, HistoryPlus Nabonidus, 17 years
Plus Labashi-Marduk, 1 year
"Labashi-Marduk ... was a vicious boy, and within nine months he had his throat cut by an assassin." Babylon the Great Has Fallen - God's Kingdom Rules p.184 "Labashi-Marduk, a vicious boy, succeeded him, and was assassinated within nine months." w65 1/1 p. 29
Plus Neriglissar, 4 years
"Neriglissar ... reigned four years" Babylon the Great Has Fallen - God's Kingdom Rules p.184
Plus Evil-Merodach, 2 years
Plus Nebuchadnezzar, 43 years
"Nebuchadnezzar ruled as king for 43 years" Insight on the Scriptures, Volume 2 p.480
Equals start of Nebuchadnezzar's reign,Calculated by adding above figures = 606 B.C.
Minus Nebuchadnezzar's 19th year
539+17+1+4+2+43 -19=587
Date for Destruction of Jerusalem = 587 B.C.