In Vedic astrology, the Lagna (Ascendant) moves approximately 1 degree every 4 minutes. In fast-rising zodiac signs, even a 3-minute error in your recorded birth time can alter your Navamsha (D9) ascendant and Dasamsa (D10) career chart.

### Why Birth Time Rectification (BTR) Matters
If your recorded birth time is uncertain:
- **D9 Navamsha Shift:** Changes marital compatibility readings and life partner traits.
- **D10 Dasamsa Shift:** Alters predictions regarding career promotions and business timing.

Through mathematical techniques like Tattwa Shodhana and past event verification (marriage date, job changes, accidents), an experienced astrologer rectifies your precise birth minute.