Birth Time Rectification

How It Works

The astrologer tests candidate birth times by comparing major life events — moves, marriages, career changes, losses — with transits and progressions to the chart angles. The time that best fits the pattern is chosen.

What to Prepare

• A list of 10–15 major life events with dates
• Physical description and personality notes
• Any family memory of the time ('around breakfast')

Limits

Rectification is an interpretive technique, not a measurement. Treat the result as a working hypothesis. Official records are always better — see birth chart without birth time.

Common Rectification Methods

• Transits to the angles: major events often coincide with outer planets crossing the Ascendant, IC, Descendant or MC.
• Secondary progressions: the progressed Moon or angles changing sign at life turning points.
• Solar arc directions: planets arcing onto angles at key ages.
• Physical appearance and temperament: used as a rough check on the rising sign.

How Long It Takes and What It Costs

A professional rectification typically takes several hours of work and is priced as a premium service. Online astrologers on our recommended platforms may offer a quicker 'rising sign check' based on a few events.

DIY: Narrowing Down Your Rising Sign

1. Calculate charts for the start, middle and end of your possible time window.
2. Read the rising sign descriptions for each option.
3. Compare house placements with your life — career-defining planets often sit in the 10th.
4. Pick the most likely option and treat it as provisional.

Where to Find Official Records

In the US, long-form birth certificates from the state vital records office often list the time of birth. Hospital records and baby books are other good sources.