An accurate
Time of birth is must in Vedic Astrology so as is the date of 'birth'. Doesnt matter how good astrologer you are approaching, if birth Time and Date is not correct then accuracy in prediction cannot be guaranteed. There are two different methods for rectification
- Tallying all the major events of your life with the horoscope planetary position and Dasha cycle. This is more of birth time verification then rectification.
- Progression chart and via secondary direction.
This is very much intricate method of finding Birth time of western Astrology