Your sign is only the surface Your birthday gives you a Sun sign — but your Moon, Venus, and rising shape how you actually love and connect. See who you're really compatible with.
Try free compatibility → Or explore all 12 zodiac signs How we work this out We use the tropical zodiac — the same Sun-sign system Western astrology runs on — placing each date by the standard, widely published sign-date ranges. Capricorn is the one that wraps the New Year, from December 22 to January 19.
Each sign spans three decans of roughly ten days. We assign decan sub-rulers by the Chaldean triplicity method: a sign's three decans are ruled, in order, by the planets of the three signs sharing its element, starting with the sign itself. That sub-ruler is what makes an early-decan and a late-decan reading of the same sign genuinely differ.
Boundary dates sit on a cusp. We place every date under one sign by the standard ranges, but if you were born on a first or last day we flag it — because the exact year and time you were born can shift the Sun into the neighbouring sign.
We don't list famous people born on each day. We'd rather give you the astrology than a scraped name dump — so every page is built from your date's sign, decan, and ruling planets, not a celebrity index.
Researched by Lune