Just to add...Dr. Brown, like many Christians, holds of a 600 (Roughly...between 586 and 600) year 2nd temple, yet they use the Rabbinic 420 year count to prove (unsuccesfully)Jesus here in Daniel 9.

Staying true to their calendar, you'd have to move daniel back at least 168 years, and have to move Jesus' b-day back, as well - all the way to between 166 and 180 BCE.

Even on their own calendar, he doesn't cut it.