There are various branches of Vedic Astrology and Natal Astrology or Birth Chart Astrology is one of them, which requires precise information of date, time , and place of birth. There is another branch of astrology called Horary Astrology or Prashna Shastra which doesnt require birth details. Horary Astrology can be used for answering your question in case you do not have birth details with you. Prashna Kundli based on Horary Astrology is considered very accurate and reliable. Apart from that, your can also get your birth time rectification (BTR) done by our best astrologers to know your exact time of birth.