Sun Sign Date Calculator
Find your Western zodiac sun sign from any birth date.
Shows date ranges, element, ruling planet, modality, and personality traits for all 12 signs.
Western astrology divides the year into 12 zodiac signs based on the sun’s apparent position.
Zodiac signs and dates:
| Sign | Dates | Element | Ruling Planet |
|---|---|---|---|
| Aries | Mar 21 – Apr 19 | Fire | Mars |
| Taurus | Apr 20 – May 20 | Earth | Venus |
| Gemini | May 21 – Jun 20 | Air | Mercury |
| Cancer | Jun 21 – Jul 22 | Water | Moon |
| Leo | Jul 23 – Aug 22 | Fire | Sun |
| Virgo | Aug 23 – Sep 22 | Earth | Mercury |
| Libra | Sep 23 – Oct 22 | Air | Venus |
| Scorpio | Oct 23 – Nov 21 | Water | Pluto |
| Sagittarius | Nov 22 – Dec 21 | Fire | Jupiter |
| Capricorn | Dec 22 – Jan 19 | Earth | Saturn |
| Aquarius | Jan 20 – Feb 18 | Air | Uranus |
| Pisces | Feb 19 – Mar 20 | Water | Neptune |
Elements: Fire signs are energetic, Earth signs are practical, Air signs are intellectual, Water signs are emotional.
Modalities: each element appears three times, once in each modality, which is how the twelve signs are built from four elements and three modes. Cardinal signs (Aries, Cancer, Libra, Capricorn) open a season and are the initiators. Fixed signs (Taurus, Leo, Scorpio, Aquarius) sit in the middle of a season and hold a position. Mutable signs (Gemini, Virgo, Sagittarius, Pisces) close a season and are the adapters. Knowing the modality often explains more about how someone operates than the element does.
Note on cusp dates: the boundaries above are the common published ones, but they are not fixed in stone. The sun crosses into a new sign at a specific instant, and that instant drifts across roughly a day depending on where the year falls in the leap cycle. Someone born on 22 December in one year may be Sagittarius while someone born the same date four years later is Capricorn. If your birthday sits on or beside a boundary, the calculator flags it, and the only real answer comes from an ephemeris for your exact birth year and time.
How we build and check this calculator
This calculator runs entirely in your browser, so the numbers you enter stay on your device. The math behind it is written by hand and tested against worked examples and standard references before the page goes live.
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