Every planet casts its influence on the native as per its positioning at that time. Every combined positioning of the planet is so unique that it may take hundreds of years for two horoscopes to be the same. Therefore one must understand what is the significance of correct birth time?
Correct birth time is essential for predictions in astrology. One should understand what is the role of correct birth time in astrology. The three main components to form a horoscope are birth date, time of birth, and birthplace. Even a slightest of variation in any of these will change the planets’ positioning in the horoscope. The predictions are based on the positioning of the planets in the horoscope. Therefore the slightest change in the positioning of the planets will result in an altered prediction. A little change in birth time, say even to the tune of one second, can alter the planets’ positioning and thus the prediction. Hence we should know that birth time is essential in astrology.
And the best method of Birth time rectification is the event based correction of the horoscope.