Frequently asked questions
The Hebrew word mazal designates the zodiac sign associated with each month of the Hebrew calendar — that is where the expression “mazal tov,” literally “a good sign,” comes from. Jewish tradition associates each of the twelve months with a sign, a planet, an element, a tribe of Israel, a stone and an angel. Your mazal is that of your Hebrew month of birth — calculate it here.
Judaism rejects divinatory astrology: the sky does not predict the future and dictates no decision. But the Talmud (Shabbat 156a) does discuss the influence of the moment of birth on temperament — and concludes: “Israel is above the mazal.” The sky describes a general nature; free will and good deeds always come first. That is exactly Astromazal's line: a portrait, never a prediction.
You need to convert your civil date to the Hebrew calendar, which is lunisolar. Mind the detail most converters miss: the Hebrew day begins at sunset. Born in the evening after sunset? Your Hebrew date is that of the following day. Our calculator uses your time and city of birth to compute the exact sunset of that day.
Since the account of Creation — “and there was evening, and there was morning” — the tradition counts the day from the evening: that is why Shabbat begins on Friday night. Concrete consequence: two people born on the same civil day can have two different Hebrew dates, depending on whether they were born before or after sunset.
Each Hebrew month carries a sign: Nissan Aries, Iyar Taurus, Sivan Gemini, Tamuz Cancer, Av Leo, Elul Virgo, Tishrei Libra, Cheshvan Scorpio, Kislev Sagittarius, Tevet Capricorn, Shvat Aquarius, Adar Pisces. Your sign depends on your Hebrew month of birth — which may differ from your Western sign, because the Hebrew calendar does not follow the same dates.
Classical astrology is based on the position of the Sun on the day of birth. Jewish tradition starts from the Hebrew month and adds its own dimensions: the tribe of Israel, the stone of the breastplate, the angel of the month, the letter of the Book of Creation, the sense to refine, the day of the week and the planetary hour. Above all: it refuses all prediction — the portrait describes, it does not decide.
The rising sign is the sign that was rising on the eastern horizon at the exact minute of your birth — it changes about every two hours. An ancient teaching reported in the name of the Book of the Angel Raziel calls it “the house of life”: if the mazal of the month says who you are, the rising sign says how you meet the world. That is why the precise time of birth is so precious.
The tradition divides the day (from sunrise to sunset) and the night each into twelve proportional hours. Each hour is entrusted to one of the seven classical planets: the Sun, the Moon, Mercury, Venus, Mars, Jupiter, Saturn. The Talmud teaches that the planet of the hour of birth colors the temperament — it is the “mazal of the hour,” which our calculator determines from your time and your city.
Around each month the tradition weaves a web of correspondences: one of the twelve tribes of Israel (with the heritage of its blessing), one of the twelve stones of the High Priest's breastplate (with the virtue the tradition credits it with), an angel appointed over the month — the tradition never addresses itself to angels: knowing his name reminds you that every time has its guard —, a letter of the Hebrew alphabet and a sense to refine. The full report explains what each of your correspondences brings you.
The calculation is free: exact Hebrew date, your mazal and its complete card, day of birth, planetary hour, rising sign, the downloadable wheel of your sky and the positions of the seven planets. The full report ($9.90) unlocks twelve personalized chapters: character portrait, your Moon, family, love, calling, trial, spiritual path, sacred correspondences, developed rising sign and synthesis. There is also a two-person compatibility analysis ($9.90): couple, parent and child, or partners. And the book of your first name ($9.90): your first name in Hebrew, letter by letter, its number and its verse. The complete pack brings all four together — the report, the first-name book, the year and a compatibility analysis — for $24.90: see the shop. Prices on the English site are shown and charged in US dollars; your bank may convert them into your own currency.
As long as you do not buy and do not ask for your sky by e-mail: no. All calculations happen in your browser, no birth date is sent to or kept on a server, and the city search goes through our own server, which queries OpenStreetMap on our behalf — the mapping service never sees you. If you ask for your sky by e-mail, it goes through our server and then Brevo, which sends the message (with your first name, your civil and Hebrew dates, the wheel and the PDF); afterwards we keep only your address, your Hebrew day and month and your sign, for the reminder of your Hebrew birthday, from time to time what the tradition says about the month and, now and then, news or an offer — one-click unsubscribe. If you do buy, it is different and we would rather say so: the form you filled in (first name, date, time and place of birth) is kept alongside your purchase. That is what lets your report reopen on its own on another device, and what stops anyone else from using your access. This information is never passed to Stripe, never appears in the link in your email, and is erased on request.
It is a reading of the Hebrew year ahead, month by month, for your mazal — $4.99. Every Hebrew month carries, in tradition, a planet and an element; crossed with yours, they say what each season of your year favours and what it asks of you. You get your months of strength, your months of trial, the exact civil dates of each, and the date of your Hebrew birthday with what it announces. One purchase covers one year: next year's is a separate purchase.
No, and it does not claim to. It describes the character tradition attributes to each Hebrew month — Adar joy, Elul repair, Tevet rigour — and crosses it with the element of your mazal. It says what a season favours, not what will happen to you. “Israel is above its mazal” (Shabbat 156a): free will always comes first.
Yes — it even makes a beautiful gift for a birth, a bar mitzvah or a wedding. Unlocking works by gift link: you purchase, you receive a link to pass on to the person of your choice, who will open it on their own device with their own birth date.
Every soul comes into the world under a sky that has never repeated itself. The sages have taught it since the Talmud, more than a millennium ago: the moment of birth — the Hebrew month, the day of the week, the hour, the sign rising on the horizon — sketches a temperament, strengths, inclinations. That is the portrait Astromazal calculates, with the precision of the calendar of Israel: a day that begins at sunset, hours that follow the sky's real course, and the seven classical planets of the tradition at their exact position at the instant of birth.
But let one thing be said clearly: Judaism does not believe in a prophetic astrology. The birth sky does not predict the future, dictates no decision, and does not guide a person's steps. It describes a general nature — the way one might describe a musical instrument: the melody you draw from it belongs to you alone. “Israel is above the mazal,” teaches the Talmud: through choices, deeds and work on oneself, each person rises above their star. What you read here is a birth portrait, not a destiny — the last word is always yours.
Your own sky
Free
Your sign and your date
The full report · $9.90
Your full sky
Twelve chapters written for your birth date alone
As a duo · $9.90
Two skies, one bond