What Does Your Birthday Say About You?

Every birth date carries a zodiac sign, a decan, and a distinct personality signature. Pick your day (or anyone's) from all 366 dates below to read what being born then reveals about character, love, and career.

August

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Frequently asked questions

What does your birthday say about you?

Your birth date sets your Sun sign and its decan, the part of you tied to identity, drive, and how you move through the world. It's a real layer, but only one: your full birth chart adds the Moon, rising sign, and every planet, which is where the finer detail of who you are comes from.

How do I find my zodiac sign by birth date?

Pick your day from the calendar above, each date is mapped to the sign the Sun was in. The twelve signs run in roughly month-long stretches, with each one starting and ending around the 19th to the 23rd, so dates near those boundaries belong to whichever sign the Sun had actually moved into.

What is a decan?

Each zodiac sign covers 30 degrees of the sky, and a decan is a 10-degree slice of it, so every sign splits into three decans of about ten days each. People in the same sign but different decans share the core sign but carry a slightly different flavor.

What if I was born on a cusp (between two signs)?

On any given date and year the Sun is only ever in one sign, so there's no such thing as being born under two. A "cusp" birthday just falls close to a sign change, where the exact boundary shifts by up to a day or two from year to year. Checking your birth year (and ideally your birth time) settles which sign is actually yours.

Are people born on the same day alike?

They share the same Sun sign and decan, so there's often a familiar thread. But the Moon, rising sign, and the rest of the chart change with the time and place of birth, so two people born on one date can still come out noticeably different.

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.

Your Sabian symbol comes from the Sun's real position. We compute the Sun's ecliptic longitude for the date (the same astronomy our charts run on, not a guess from where the day falls in the month), then read off the degree it sits in. That is the degree whose Sabian symbol we show.

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 Luune