You have been misled and deceived by the false teachers.
Projecting, much.
The date 537 BCE is is the accepted date for the Return 0f the Jews to Judah thus officially ending the 70 years.
By nobody, except Watchtower. And based on nothing but a fudge. They want 607BC to be true so they make up an event in 537BC, on zero evidence. In any event, Jer 25:12 is absolutely clear that the 70 years ends at (or prior to) the fall of Babylon.
Jer. 25:12 only comes into effect after the 70 years had ended in 537 BCE and not 539 BCE at the Fall of Babylon for it begins as a qualifier "But when 70 years have been fulfilled"
Completely wrong. Re-read Jer 25:12
and Dan 9:1-2 refers to the ending of the 70 years after Babylon fell for Daniel observed the matter in 'the first year of Darius'.
Daniel only refers back to Jeremiah, and doesn’t change or add anything at all. Why do you refer to it?
Also, side point: this is the passage that incorrectly states Darius I was the father of (not the son of) Xerxes. Darius I was the Persian King at the Battle of Marathon. Xerxes was the Persian King at the later battle of Thermopylae. By the way, you do realise most scholars think that Daniel was written in about 167BC, there I no record of that Book existing before that date, the Jews don’t include him in their list of prophets, etc?