Free astrology tool
What's My Zodiac Sign?
Select your birth month and day to find your Sun sign instantly. If you were born near a sign change, we will flag the cusp and explain what that means.
Enter your birthday
Select your birth month and day to find your Sun sign instantly.
All 12 zodiac sign dates
These are the approximate Sun sign dates. The exact cutoff between signs shifts by 1–2 days depending on the year. If you were born on the first or last day of a sign, check a birth chart with your birth time to be certain.
Aries
March 21 – April 19
Taurus
April 20 – May 20
Gemini
May 21 – June 20
Cancer
June 21 – July 22
Leo
July 23 – August 22
Virgo
August 23 – September 22
Libra
September 23 – October 22
Scorpio
October 23 – November 21
Sagittarius
November 22 – December 21
Capricorn
December 22 – January 19
Aquarius
January 20 – February 18
Pisces
February 19 – March 20
What is a Sun sign?
Your Sun sign — sometimes called your star sign or zodiac sign — is the zodiac sign the Sun was in on the day you were born. Because the Sun moves through all 12 signs over the course of a year (spending roughly a month in each), your Sun sign is primarily determined by your birth month and date.
In astrology, the Sun represents your core identity: the qualities you express most consciously, your life direction, and the archetype you are working to embody over your lifetime. It is the most public part of your chart — the part most people mean when they say "I'm a Scorpio" or "she's such a Leo."
But the Sun sign is just one layer. A full birth chart includes your Moon sign (emotional inner world), Rising sign (outward personality and approach to life), and the placements of Mercury, Venus, Mars, Jupiter, Saturn, and the outer planets. Many people find that their Moon or Rising sign resonates more deeply than their Sun sign — especially if those placements are in the neighboring sign to their Sun.
Born on the cusp?
If you were born within a few days of a sign transition, you may have been told you are "on the cusp" — meaning in between two signs. Here is what you need to know: the Sun is always in exactly one sign. The exact day the Sun moves between signs shifts slightly each year (usually by 1–2 days), so the only reliable way to know your true Sun sign is to check a birth chart with your exact birth time.
The reason "cusp people" often relate to both signs is that their Moon, Mercury, Venus, or Rising sign tends to fall in the neighboring sign. That blend is real — it just comes from the full chart, not the Sun being in two places.
Frequently asked questions
What is a zodiac sign?
A zodiac sign (also called a star sign or Sun sign) refers to the sign of the zodiac the Sun was passing through on the day you were born. The Sun moves through all 12 zodiac signs over the course of a year, spending roughly 30 days in each. Your Sun sign describes your core identity, life direction, and the qualities you express most consciously.
What is the difference between Sun sign, Moon sign, and Rising sign?
Your Sun sign is determined by your birth date and describes your core self. Your Moon sign is determined by where the Moon was when you were born and describes your emotional inner world, instincts, and what you need to feel secure. Your Rising sign (also called the Ascendant) is determined by the exact time and location of your birth and describes how you come across to others and your approach to life. All three — and the other planetary placements — make up your full birth chart.
What if I was born on the cusp between two signs?
The Sun is always in exactly one sign at any given moment — it cannot be 'between' signs. If you were born near the transition date, your Sun is still either fully in one sign or the other. The exact cutoff changes by year, so the only way to know for certain is to check your full birth chart with your exact birth time. People born near sign transitions often feel like a blend because their Moon, Mercury, or Venus are in the neighboring sign.
Can two people born on the same day have different Sun signs?
Yes, if they were born on the specific day the Sun changed signs that year. The Sun's ingress from one sign to the next happens at a precise moment — sometimes early morning, sometimes late at night. Two people born on the same date but at different times of day could technically be different Sun signs if the Sun changed signs between their birth times.
Is your zodiac sign based on birth year?
Your Sun sign is based on birth date and time, not year — the Sun makes the same annual cycle every year. Your birth year matters for other placements: the slower-moving outer planets (Jupiter, Saturn, Uranus, Neptune, Pluto) stay in a sign for years or decades, so people born in the same year share those placements. Your Moon sign also depends on your birth year because the Moon changes signs every 2–3 days.
What is the rarest zodiac sign?
No zodiac sign is significantly rarer than others — the Sun spends roughly equal time in each sign. However, some research suggests that Aquarius, Aries, and Sagittarius are statistically slightly less common birth months in the Northern Hemisphere due to birth rate patterns. Astrologically speaking, all signs are equally valid and equally common.
Get all your placements — free
Your Sun sign is a starting point. Your free Astrelle natal chart shows your Moon sign, Rising sign, and all planetary placements — calculated from your exact birth time and location.
Create your free chart