What Is My Zodiac Sign? Find Your Sun Sign by Birthday
Your zodiac sign — your Sun sign — is the sign the Sun was passing through on the day you were born. Choose your birthday below. If it falls on a cusp, add your birth year and we'll work out the exact answer rather than guessing from a date table.
Zodiac sign dates
These are the usual dates for each sign in the Western (tropical) zodiac:
| Aries | 21 March – 19 April | Fire |
| Taurus | 20 April – 20 May | Earth |
| Gemini | 21 May – 20 June | Air |
| Cancer | 21 June – 22 July | Water |
| Leo | 23 July – 22 August | Fire |
| Virgo | 23 August – 22 September | Earth |
| Libra | 23 September – 22 October | Air |
| Scorpio | 23 October – 21 November | Water |
| Sagittarius | 22 November – 21 December | Fire |
| Capricorn | 22 December – 19 January | Earth |
| Aquarius | 20 January – 18 February | Air |
| Pisces | 19 February – 20 March | Water |
The boundaries aren't fixed to the calendar. The Sun enters each sign at a precise moment that shifts by up to a couple of days between years, which is why date tables disagree at the edges — and why the calculator checks your actual birth year.
Born on a cusp?
There's no such thing as being "half" one sign and half another: at the moment you were born, the Sun was in exactly one sign. If your birthday is within a day or two of a change, the calculator shows both possible signs; add your birth year to settle it, and on the day of the change itself, your birth time and place.
Your Sun sign is one part of the picture
Your Sun sign describes your core identity, but your Moon sign and rising sign add your emotional nature and your outward manner. Together they make your big three — a much fuller sketch than the Sun alone. Explore all twelve zodiac signs to go further.
How the calculation works
The positions come from standard astronomical algorithms — VSOP87 for the Sun and Jean Meeus's lunar theory for the Moon — accurate to well within a sign boundary. The part most free calculators get wrong is the time zone: we look up the zone for your place of birth and apply the offset that was actually in force on your birth date, including daylight saving and historical changes. You can see the offset used, and change it, before you calculate.
Results use the Western (tropical) zodiac. Vedic astrology uses the sidereal zodiac, which currently sits about 24° behind — see tropical vs sidereal for why the two differ.
Your zodiac sign is the sign the Sun was in on your birthday. Most birthdays give one clear answer; on a cusp, your birth year — and sometimes your birth time and place — decides it. It's the starting point of your chart, not the whole of it.
Frequently asked questions
What is my zodiac sign?
Your zodiac sign — your Sun sign — is the sign the Sun was in on your birthday. Enter your birth day and month above to find it. If your birthday falls on a cusp, where the Sun changes sign, add your birth year (and if needed your birth time and place) for an exact answer.
What are the zodiac sign dates?
Aries 21 March – 19 April, Taurus 20 April – 20 May, Gemini 21 May – 20 June, Cancer 21 June – 22 July, Leo 23 July – 22 August, Virgo 23 August – 22 September, Libra 23 September – 22 October, Scorpio 23 October – 21 November, Sagittarius 22 November – 21 December, Capricorn 22 December – 19 January, Aquarius 20 January – 18 February, Pisces 19 February – 20 March. The exact change shifts by a day or so from year to year.
I was born on a cusp — what is my sign?
You have one Sun sign, not a blend. The Sun moves from one sign into the next at a precise moment, and that moment varies slightly each year. Add your birth year, time and place to the calculator and it works out which side of the change you were born on.
Why is my zodiac sign different in Vedic astrology?
Vedic astrology uses the sidereal zodiac, which is tied to the constellations and currently sits about 24 degrees behind the Western tropical zodiac used here. That's why most people's Vedic Sun sign is one sign earlier. Neither is wrong — they're different systems.
Know your Sun sign? The Oracle reads it together with your Moon, rising and the rest of your chart — as a mirror for reflection — in a conversation that remembers your story.
Meet The Oracle →