You tell me--do the math, then find the answers you seek online, then trust in Christ (would be the natural outcome, I ain't proselytizing here).
Your argument is dead. You claimed that the prophecies take us to a specific date and cannot show how. You ask me to do it for you when I've already told you that you cannot add any number of days to a calendar year and arrive at a specific date.
And of course you're proselytizing. What else would you be doing? You aren't debating. You evade most of the rebuttals offered. You still won't answer why the prophecy uses a random calendar - the Gregorian - rather than the calendar of the people who were told the prophecy, why the first 70 (430 BCE - 360 BCE) years isn't multiplied by seven, why those 70 years between two common era calendar dates uses a 360 day year rather than a 365.2425 day year that the common era calendar uses, or how you get from a year to a date adding days.
What's the date (including month and day) 50,000 days after 1971? It's a ridiculous question. One needs to know whether to start from February 2nd of that year, or June 6th, or November 11th, or whatever.
What's you explanation for evading every one of those questions?
That's a rhetorical question that need not be answered.
First, there is no expectation that you would ever tackle an inconvenient question.
Second, it is understood that you have no satisfactory answers because your argument is fatally flawed, you can see that, but still continue to assert it. Nothing says "faith" and why so many of us eschew it for reason better than that.
You're grasping at nothingness for validity, seeing it shot down, and running from that because you have chosen faith over reason and now finding yourself forced to take indefensible positions believed by faith but contradicted by evidence and/or reason.