How the calculator works
The tropical zodiac divides the ecliptic into twelve equal 30-degree signs beginning at the March equinox. This date-only tool uses conventional sign ranges.
Born within roughly a day of a sign change? An exact calculation requires the year, local birth time, birthplace coordinates, and historical time-zone rules.
Why another site may show a different sign
Some astrologers use the sidereal zodiac, which applies a precessional offset and usually returns a different sign. ZodiacJoy labels its system clearly and does not treat tropical and sidereal results as interchangeable.