“Well, technically Kate’s birth time isn’t officially known, apparently/supposedly a friend of Will & Kate’s gave an astrologer her birth time so that a compatibility chart could be done as a wedding gift. That birth time is 7 pm/1900, which is what most people go with now.”- Kate’s grandfather (Peter Middleton) told an interviewer that she was born in the afternoon. She I doubt it was 7 pm.

Meh. There is also no proof that Kate’s grandfather was telling the truth or remembered accurately. A birth certificate would be necessary to prove or disprove the 19:00 birth time, and it’s highly doubtful anyone will get their hands on something like that. Regardless, western astrologers have accepted it. It is given a Rodden Rating of “A.” You can read the source notes behind the 19:00 time here.

I think the 19:00 time works quite well from a Vedic astrology standpoint. Kate became engaged in October 2010. This coincides nicely with the beginning of her Mercury mahadasha in December 2010. Given that Mercury is in her 7th house and is in a parivartana yoga (mutual exchange) with her 7th house lord Saturn, this seems to be an accurate timing in her life.

Also, in her navamsha (marriage) chart, her 7th house is ruled by Leo, which is ruled by the Sun. The Sun is a karaka (indicator) of royalty, and it is placed in the 10th house (government, career). So, I would also take this as an indication that the 7 pm time is correct.