Confluence of Data Affirms Jesus Birth is circa Tishri 1 (September 8) of BC 2
Zachariah, the father of John the Baptist, was a priest "of the course of Abia (Abijah)" according to Luke 1:5. There are 24 courses [divisions each with six families to perform festal sacrificial services] of priests according to I Chronicles 24. Abijah's course (division) was the 8th course among the 24 courses. When the Jewish Temple was destroyed by the Roman Governor Titus on August 5, 70 AD, the first course of priests had just taken office. By tracing back carefully, the 8th course would have ended their duties on Av 11 (July 13), BC 4. The birth of John the Baptist would be 280 days (9 months and 10 days gestation) later, circa Nisan 4 (March 20) BC 3. The birth of Yeshua (Jesus) would have been six months later (Luke 1:36) in the fall circa Tishri 1 (September 8), which is the beginning of year BC 2. When the Persian Magi came to give gifts (after Herod co-opts them to locate Jesus) Jesus was living in a house, no longer living in a manger. (Mt 2:11) Joseph and Mary flee to Egypt after an angel warns them of Herod's plot to kill Jesus.(Mt 2:13) Upon news of Herod's death, on Shevat 11 (January 14) BC 1, they return to Judea. Arrival back to Judea was circa Elul 29 (August 27) which is the end of year BC 1 when Jesus was about 2 years of age.
This fits 29 CE timeline for when Jesus began his ministry and 33 CE for when he was crucified. Herod's death is key to sorting this out.