Ra presented it as a date he was given, not as a calculation. Ra said "I was given an exact date, for example, for 2027, which is the ides of February." In the same breath he said he was never given an exact date for other things. Nowhere does he show the arithmetic, name an ayanamsa, or derive the moment from a published precession rate. That is worth knowing if you like precision, because a precession of roughly one degree in 72 years cannot be pinned to a minute by measurement. What he does instead is show the chart of the moment and invite you to check its themes. In his model of 64 evolutionary steps, 1781 and 2027 are the only two dates he said he knew precisely. Treat the date as his, verify what you can verify, and do not expect an astronomical derivation from Ra.
This is not a fact, not medical advice and not a promise of healing. It is part of the cosmology Ra Uru Hu, who founded Human Design, left behind, and nobody knows exactly how it will unfold.
Free, no account and no email. Every answer here was written by hand from what Ra Uru Hu left behind, not generated. Ask your own question at The 2027 Oracle.