Zodiac Sign Calculator — What Is My Sign?
Find your zodiac (sun) sign from your birthday, with exact cusp times for that year, element, modality, ruling planet, decan and a table of all 12 date ranges.
Tropical (Western) zodiac. Sign-change times come from the Sun's position for the year 1995 and are accurate to about a quarter of an hour.
| Sign | Starts | Ends | Element | Modality |
|---|---|---|---|---|
| ♒ Aquarius | 1995-01-20 08:02 | 1995-02-18 22:12 | Air | Fixed |
| ♓ Pisces | 1995-02-18 22:12 | 1995-03-20 21:15 | Water | Mutable |
| ♈ Aries | 1995-03-20 21:15 | 1995-04-20 09:21 | Fire | Cardinal |
| ♉ Taurus | 1995-04-20 09:21 | 1995-05-21 08:33 | Earth | Fixed |
| ♊ Gemini | 1995-05-21 08:33 | 1995-06-21 16:33 | Air | Mutable |
| ♋ Cancer | 1995-06-21 16:33 | 1995-07-23 03:27 | Water | Cardinal |
| ♌ Leo | 1995-07-23 03:27 | 1995-08-23 10:30 | Fire | Fixed |
| ♍ Virgo | 1995-08-23 10:30 | 1995-09-23 08:06 | Earth | Mutable |
| ♎ Libra | 1995-09-23 08:06 | 1995-10-23 17:23 | Air | Cardinal |
| ♏ Scorpio | 1995-10-23 17:23 | 1995-11-22 13:55 | Water | Fixed |
| ♐ Sagittarius | 1995-11-22 13:55 | 1995-12-22 03:14 | Fire | Mutable |
| ♑ Capricorn | 1995-12-22 03:14 | (next year) | Earth | Cardinal |
Your zodiac sign — your Sun sign — is the part of the zodiac the Sun was passing through on your birthday. Horoscope columns print fixed date ranges, but the Sun actually changes sign at a slightly different hour each year, so people born from the 19th to the 23rd of a month can land on either side. This calculator works out the real change times for your birth year and zone, and gives your sign's element, modality, ruler and decan.
How to use this tool
- Enter your birth date.
- If you were born near the change of signs, add the birth time and choose the birthplace time zone.
- Read your sign and its traits; the table lists all twelve sign periods for that year.
Formula
Sign = ⌊ apparent solar longitude ÷ 30° ⌋ (0 = Aries … 11 = Pisces)
The Sun's longitude comes from the Meeus low-accuracy solar theory (about 0.01°). A sign starts when the longitude reaches a multiple of 30°: 0° at the March equinox for Aries, 90° at the June solstice for Cancer, and so on. Decans split each sign into three 10° parts, sub-ruled by the signs of the same element.
Example
In 2024 the March equinox fell at 03:06 UTC on 20 March. A baby born at 02:00 UTC that day is a Pisces; one born at 04:00 UTC is an Aries — a fire sign, cardinal, ruled by Mars, opposite Libra.
Frequently asked questions
I was born on a cusp — what is my sign?
There is no blended sign: at any moment the Sun is in exactly one sign. Enter your birth time and time zone and the calculator says which side of the change you were born on.
Why do websites give different dates for the same sign?
Fixed tables average the change dates over many years. Because a calendar year is not exactly a solar year, the actual change shifts by up to a day, and leap years move it back again.
What about the “13th sign” Ophiuchus?
Ophiuchus is a constellation the Sun passes, but Western astrology uses twelve equal signs tied to the equinoxes, not the star constellations. In that system there are only twelve signs.
Sources
Astrology is presented for entertainment only. The sign dates are real astronomy, but the traits linked to signs have no scientific basis; nothing here is health, financial, legal or relationship advice. How we check our calculators · Full disclaimer
Last updated:
Page address with these inputs: https://kakao.mobile/tools/zodiac-sign-by-date-calculator/
Cite or embed this tool
kakaoCalc. (2026, November 8). Zodiac Sign Calculator — What Is My Sign?. https://kakao.mobile/tools/zodiac-sign-by-date-calculator/
“Zodiac Sign Calculator — What Is My Sign?.” kakaoCalc, 8 Nov. 2026, kakao.mobile/tools/zodiac-sign-by-date-calculator/.
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