Why do I need my birth time for some of the readings?

The difference between a daily horoscope and a personalized reading is the difference between ordering 'food' and ordering a black-bean avocado and cheese burrito with salsa on the side! Your astrological chart was cast at the exact moment of your birth, and it's as unique as your fingerprints. Daily horoscopes and Sign profiles are based on your Sun Sign, which is only a part of your chart and really just the tip of the iceberg. Astrology is based on the exact mathematical relationship of all the planets to each other and to the earth at the exact place and time of your birth. An astrology reading is at its most insightful when based on these precise details, and can give you a more complete picture of your personality. Every type of reading is based on a unique combination of planetary positions. Some readings can't be done without time and place of birth, because these readings rely on a planet or moon position that must be exact.