Zodiac Sign Date Calculator

Your Western astrology zodiac sign is determined by the position of the Sun at the time of your birth. Each of the 12 signs corresponds to a specific date range during the year, as the Sun moves through each of the 12 constellations of the ecliptic. Simply knowing your birth month and day is enough to find your sun sign.

The 12 signs are: Aries (Mar 21–Apr 19), Taurus (Apr 20–May 20), Gemini (May 21–Jun 20), Cancer (Jun 21–Jul 22), Leo (Jul 23–Aug 22), Virgo (Aug 23–Sep 22), Libra (Sep 23–Oct 22), Scorpio (Oct 23–Nov 21), Sagittarius (Nov 22–Dec 21), Capricorn (Dec 22–Jan 19), Aquarius (Jan 20–Feb 18), and Pisces (Feb 19–Mar 20).

Each zodiac sign belongs to one of four elements — Fire, Earth, Air, or Water. Fire signs (Aries, Leo, Sagittarius) are energetic and passionate. Earth signs (Taurus, Virgo, Capricorn) are practical and grounded. Air signs (Gemini, Libra, Aquarius) are intellectual and communicative. Water signs (Cancer, Scorpio, Pisces) are intuitive and emotional.

Each zodiac sign is associated with a ruling planet that is said to influence the characteristics and energy of that sign. For example, Mars rules Aries (bringing drive and aggression), Venus rules Taurus and Libra (bringing beauty and love), and Mercury rules Gemini and Virgo (bringing communication and intellect).

The quality (also called modality) describes how a sign operates within its season. Cardinal signs (Aries, Cancer, Libra, Capricorn) initiate and start new things. Fixed signs (Taurus, Leo, Scorpio, Aquarius) are determined and resistant to change. Mutable signs (Gemini, Virgo, Sagittarius, Pisces) are adaptable and flexible.

If your birthday falls within a day or two of when one sign transitions to another, you are said to be 'on the cusp.' The exact cutoff date can shift by a day depending on the year, because the Sun does not change signs at exactly the same moment every year. For precise results, you may need to check the exact Sun position for your birth year.

Yes — in everyday usage, 'your zodiac sign' refers to your sun sign, which is based on where the Sun was when you were born. However, a full birth chart also includes your Moon sign (where the Moon was at birth) and your rising sign (the constellation on the eastern horizon at your birth time and location), which require exact birth time and location.

No. Western astrology uses the tropical zodiac, which is fixed to the seasons and the vernal equinox. Vedic (Jyotish) astrology uses the sidereal zodiac, which tracks the actual positions of constellations. Because Earth's axis has precessed over 2,000 years, sidereal signs are roughly 23 days behind Western signs. This calculator uses Western tropical dates.