Hebrew months: calendar facts, letters and zodiac correspondences
Browse all twelve Hebrew months with calendar order, month lengths, Hebrew letters and zodiac correspondences in the Gra version of Sefer Yetzirah.
Prepared by Mazalogy · Published · Our editorial approach
Read two kinds of information together
The Hebrew calendar has twelve months in an ordinary year and thirteen in a leap year. This table follows the traditional month sequence beginning with Nisan. The numbered year begins in Tishrei, so a calendar displayed from Rosh Hashanah uses a different starting point without changing the months themselves.
The day counts describe the fixed calendar. Cheshvan and Kislev vary with the year; a leap year adds Adar I before Adar II. To find civil dates, select a Hebrew year in the calendar tool. A month name is not a permanent translation of a Gregorian month.
Sources: Chabad · The Jewish Month: order and fixed-calendar lengths
| Month | Order | Days in the fixed calendar | Hebrew letter | Textual zodiac correspondence |
|---|---|---|---|---|
| Nisan ניסן | 1 | 30 | ה · Heh | Aries |
| Iyar אייר | 2 | 29 | ו · Vav | Taurus |
| Sivan סיוון | 3 | 30 | ז · Zayin | Gemini |
| Tammuz תמוז | 4 | 29 | ח · Chet | Cancer |
| Av אב | 5 | 30 | ט · Tet | Leo |
| Elul אלול | 6 | 29 | י · Yod | Virgo |
| Tishrei תשרי | 7 | 30 | ל · Lamed | Libra |
| Cheshvan חשוון | 8 | 29 or 30 | נ · Nun | Scorpio |
| Kislev כסלו | 9 | 29 or 30 | ס · Samekh | Sagittarius |
| Tevet טבת | 10 | 29 | ע · Ayin | Capricorn |
| Shevat שבט | 11 | 30 | צ · Tsadi | Aquarius |
| Adar אדר | 12 | 29; Adar I has 30 | ק · Qof | Pisces |
A correspondence needs a named text
The letter and sign columns follow the Gra version of Sefer Yetzirah, chapter 5. They describe a textual relationship among twelve simple letters, months and zodiac names. They are not a calculation of the Sun’s position at a birth time, and a Hebrew month correspondence can differ from a calculated tropical Sun sign.
The individual references add the faculty gloss used by Mazalogy, a reading question and the calendar issues relevant to that month. Our exercises are contemporary applications. They do not establish a personality type, prediction or universal Jewish position on astrology.
Sources: Sefer Yetzirah · Gra version, chapter 5:7–10 · Sefer Yetzirah · Compare another version, chapter 5:1–2
Read Adar I and Adar II explicitly
The source’s pattern is twelvefold. Mazalogy groups both Adars with the Adar–Qof–Pisces correspondence as a stated editorial convention. The calendar still preserves Adar I and Adar II as distinct months. A birthday conversion and an anniversary rule also remain separate questions.
Use the reference
Explore a selected Hebrew year · Find your Hebrew birthday · Study the zodiac and Hebrew months · Understand Nisan and Tishrei order
Sources and approach
Prepared with AI assistance using the linked sources and original reading exercises. Calendar facts, named textual correspondences and contemporary applications are kept distinct. The Gra version is the reference for this table; other versions can assign faculties differently.