Zodiac sign by birthday
Your zodiac sign is the sign the Sun was in on your birthday. It changes once a month, between the 18th and the 23rd day of the month, at a minute that moves from year to year; pick your date below.
The Sun doesn't change sign at midnight on a fixed calendar date — it crosses at a specific minute that moves each year, which is why "am I Aries or Taurus?" has a real answer. Pick your month, then your day: sign, decan, decan tarot card, and on cusp days the crossing time for every birth year from 1980 to 2030.
By month
Born on a cusp?
There's no such thing as being both: the Sun crosses at one minute, and it moves by up to a day each year. Twelve pages, one per boundary, with the exact crossing for every birth year 1980–2030, plus the full dataset (CSV, CC0).
Which sign is most common?
Using US births from 2000 to 2014, Leo is the most common sign (8.96%) and Capricorn the rarest (7.63%); 3.30% of people are born on a cusp day. See the study, method and data.
When the Sun changes sign in 2026
Computed from the Sun's ecliptic longitude — the same numbers the birth chart calculator uses.
| Sign | Sun enters | UTC |
|---|---|---|
| ♒︎ Aquarius | January 20 | 01:44 |
| ♓︎ Pisces | February 18 | 15:51 |
| ♈︎ Aries | March 20 | 14:45 |
| ♉︎ Taurus | April 20 | 01:39 |
| ♊︎ Gemini | May 21 | 00:37 |
| ♋︎ Cancer | June 21 | 08:25 |
| ♌︎ Leo | July 22 | 19:13 |
| ♍︎ Virgo | August 23 | 02:19 |
| ♎︎ Libra | September 23 | 00:05 |
| ♏︎ Scorpio | October 23 | 09:38 |
| ♐︎ Sagittarius | November 22 | 07:23 |
| ♑︎ Capricorn | December 21 | 20:50 |