Your sun, moon and rising signs from your birth date, time and place.
Moon sign calculator
What is my moon sign?
With JavaScript on, enter your birth date, birth time and birthplace to see your sun sign, your moon sign and its degree, and your rising sign. Everything is worked out on your device.
Without the calculator, the moon sign today page linked at the end of this page gives the Moon's sign for any date and time and what each moon sign means.
How the calculator works
- Your birthplace sets the time zone, including daylight saving and older offsets, so your birth time becomes one exact moment.
- For that moment it computes where the Sun and the Moon stood along the zodiac, from standard astronomical formulas checked against the Swiss Ephemeris that professional chart software uses.
- For the rising sign it finds the star time at your birthplace and the degree of the zodiac coming up over the eastern horizon.
- Signs follow the tropical zodiac, as most Western astrology does.
Sun, moon and rising in astrology
Sun sign. The sign the Sun stood in when you were born, the one horoscopes go by. Astrology reads it as the core self: what you build your life around and how you shine.
Moon sign. The Moon's sign at your birth. Astrologers read it as your emotional nature: what comforts you, how you react and what you need to feel at home. The Moon moves fast, so two people born days apart can share a sun sign and have different moon signs.
Rising sign. Also called the ascendant: the sign rising on the eastern horizon at the minute and place of your birth. Tradition reads it as your manner and first impression, the doorway others meet before they know you, and it anchors the houses of a birth chart.
Why birth time matters
The Moon changes sign every two to three days, so on about one birthday in three it moves to a new sign that day. When that happens the calculator shows both signs and the time of the change. The rising sign turns through the whole zodiac in a day, about one sign every two hours, so it needs a birth time; without one the calculator leaves it out rather than guess. If your rising degree sits near the edge of a sign, a few minutes either way can change it, and the calculator says so.
For the Moon's sign right now, see moon sign today; for the phase you were born under, the birthday moon phase calculator; and for working with the Moon in practice, the guide to moon magic.