What is my zodiac sign?
Your zodiac sign usually means your Sun sign: the tropical zodiac sign occupied by the Sun at birth. A birthday gives an approximate starting point. If you were born near the change between two signs, use your birth year, local time and birthplace to calculate the Sun’s actual position. At one instant, the Sun occupies one tropical sign.
Calculate my exact Sun signWhy date lists can disagree
The Sun enters each sign at a particular instant, rather than at local midnight on a fixed date every year. The year and time zone can shift the calendar date of a boundary. A chart calculator converts the local birth time to UTC and calculates the longitude, which avoids guessing from a generic date range.
Your chart includes more than your Sun
The Moon and other planets have their own signs; the Ascendant depends on the local horizon. This is why a person can recognize several sign descriptions without having two Sun signs. Western tropical signs are twelve equal sectors tied to the equinox. Sidereal zodiac systems use a different reference, while astronomical constellations have unequal boundaries.
Try this.
- Browse the twelve-sign date guide as a starting point.
- For a boundary birthday, enter the complete birth details in the calculator.
- Read the Sun placement first, then explore Moon and Rising.
A little more context.
Can I have two zodiac signs on a cusp?
The Sun has one tropical sign at a given instant. Other placements can occupy the neighboring sign, which adds different themes to the chart.
Does my zodiac sign change each year?
Your natal Sun sign stays tied to the moment you were born. The Sun’s current sign changes during the year; that is a transit, not a change to your natal chart.
Reference: Astrodienst · Astrology basics