Birth Time Rectification Lab

Unknown or fuzzy birth time? The angles of a chart move a degree every four minutes, and the big dated events of a life tend to arrive when transits and directions strike those angles. This lab runs that logic in reverse: it scans candidate birth times across your window and ranks them by how precisely your life events line up.

1 · Birth data (time treated as unknown)

2 · Search window

If family lore says morning, narrow the window: fewer candidates means sharper scores. A full day at 4 minute steps scans 360 candidate times.

3 · Dated life events

Load birth data first.

How rectification works

The problem

An uncertain birth time mostly means uncertain angles: the Ascendant and Midheaven move about one degree every four minutes, while the planets barely move all day. Rectification runs the logic backwards: if the big dated events of your life line up with the angles a particular birth time produces, that time gains evidence.

What the scan does

For every candidate time in your window, the lab computes the angles, then tests each of your life events two ways: outer planets transiting hard aspects to those angles on the event date, and solar arc directions (every natal planet advanced by the progressed Sun's travel) reaching the angles. Tight orbs score higher; Saturn and Pluto contacts weigh more than Jupiter.

Choosing good events

Use precisely dated, structurally significant events: marriages, divorces, births of children, deaths of parents, major moves, career turning points, serious health episodes. Five to eight strong events beat fifteen vague ones. If you only know the month, use the 15th and expect softer precision.

Reading the results

Scores are comparative, not absolute: the top candidate is the best-supported time in your window given your events, not a proven fact. A good sign is a cluster of high scores within a few minutes of each other. Test the winner by checking it against events you deliberately left out.