Born on March 20
A cusp date — read this before you pick a sign.
Which sign is it?
March 20 is one of only eleven days in the year where the answer genuinely depends on the year you were born. The Sun changes sign on this date, so March 20 births fall under Pisces in some years and Aries in others. Anyone publishing a fixed table for this date is guessing. The only way to settle it is to compute the Sun's real position for your year — and, if you were born close to the changeover, your birth time as well.
The decan
March 20 falls in the first decan of Aries — roughly 0° to 10° of the sign. The first decan is the sign at its most undiluted. Everything the sign is known for shows up here with the least interference — for better and for worse, this is the purest expression of it. Here that sub-ruler is Aries itself, ruled by Mars: a double dose rather than a blend.
The Egyptian decan
Long before the Greeks divided the sky into twelve, Egyptian astronomers cut the year into thirty-six decans of about ten days, each marked by the star that rose with the dawn. March 20 belongs to Seret, decan 8 of thirty-six, whose rising star is Bellatrix and whose traditional quality is sacred magic. This is a separate tradition from the western zodiac above, not a translation of it — the two were built from different sky-watching and they disagree in places.
The deity for this date
The Egyptian deity paired with this date is Isis (Aset) — Water element, sacred animal the Kite bird. The most magical of all signs, Isis children are gifted with deep intuition and an almost supernatural ability to perceive hidden truths. They are devoted, passionate, and fiercely protective. Their love is legendary, capable of reassembling what the world has torn apart.
The day number
As a date, March 20 reduces to a 2 — partnership, sensitivity, and a talent for reading a room before speaking. This is the day number rather than your full Life Path, which needs the month and year as well — but it is the part of the calculation your birthday alone decides.
What a birth date cannot tell you
One thing worth being clear about: a birth date on its own fixes your Sun sign and very little else. Your Moon sign changes every two and a half days, and your Rising sign changes roughly every two hours and depends on where you were born. Two people who share March 20 can have almost nothing else in common chart-wise.
Two people share this birthday and almost nothing else
Your Moon sign needs a time, your Rising sign needs a time and a place. Six questions, no card.
See my full chart →Born on March 20: FAQ
What zodiac sign is March 20?
March 20 is a cusp date: the Sun changes sign on this day, so the answer is Pisces or Aries depending on which year you were born — and occasionally on the time of day. It is one of only eleven dates in the year where a fixed date table cannot be trusted.
Which decan is March 20?
March 20 falls in the first decan of Aries, the 0–10° band, sub-ruled by Mars. Decans divide each sign into three ten-degree sections, which is how two people of the same sign can read quite differently.
Does my birthday tell you my Moon sign?
No. The Moon crosses a sign every two and a half days, so a date alone cannot fix it — you need at least the year, and usually the time. Zodaiya's Moon sign calculator will tell you honestly when your date is not enough to settle it.
What is special about being born on March 20?
Astrologically: the Sun's position, the decan it falls in, and the Egyptian deity Isis traditionally paired with this part of the year. What it does not fix is the rest of your chart, which is where most of the personal detail actually lives.