How we read a birthday
Your birthday holds more than your Sun sign. Astrologers split every sign into three decans of about ten days each. The first decan shows the sign in its purest form, while the second and third borrow a little from the other two signs of the same element, which is why two Leos born three weeks apart can feel so different. On each birthday page you’ll find the decan, its planet and, if you were born close to the change of signs, the cusp you were born on.
Numerology adds a second layer: the day of the month you were born, your birthday number. It is one ingredient of your life path number, and it colors how you approach work, love and everyday choices. Tarot adds a third: the Major Arcana card of your sign in the Golden Dawn tradition, the minor card of your decan, and the card that matches your day number.
Put together, these layers give a portrait that changes from day to day, even within the same sign. Treat it as a mirror for reflection rather than a verdict. For the rest of your chart, add your Moon and rising sign with the big three calculator, or read your zodiac sign in full.
Frequently asked questions
What does my birthday say about my personality?
In astrology your birthday gives your Sun sign and its decan, a ten-day slice of the sign with its own flavor. Numerology adds the meaning of the day number, and tarot links both to cards. Together they make a portrait to reflect on, not a fixed description.
What is a decan in astrology?
Each zodiac sign is split into three decans of about ten days (ten degrees). The first decan is the sign in its purest form; the second and third take on a touch of the other two signs of the same element.
What if I was born on a cusp?
The Sun is always in one sign or the other, but the change happens on a slightly different day each year. If you were born within a day or two of the change, check your exact Sun sign with your birth time in the big three calculator.