Hebrew Birthday Calculator
Convert your Gregorian birth date to the Hebrew calendar date and calculate your Hebrew birthday for any year.
Enter Your Birth Date
We'll convert it to the Hebrew calendar and calculate your Hebrew birthday for upcoming years.
Time is important for accurate Hebrew date conversion as Hebrew days begin at sunset
Understanding the Hebrew Calendar
The Hebrew calendar (הלוח העברי, Ha-Luah ha-Ivri) is a lunisolar calendar used predominantly for Jewish religious observances. It determines the dates of Jewish holidays, appropriate Torah portions for public reading, yahrzeits (dates to commemorate the death of a relative), and the specific daily psalms recited.
Key Features of the Hebrew Calendar
- Days Begin at Sunset: In the Hebrew calendar, days begin at sunset rather than midnight
- Lunar Months: Months follow the lunar cycle and begin with the new moon
- Solar Years: The calendar is adjusted to maintain alignment with the solar year and seasons
- Leap Years: To reconcile the lunar and solar cycles, an extra month (Adar II) is added in 7 out of every 19 years
- Month Names: The 12 (or 13 in leap years) months are Nisan, Iyar, Sivan, Tammuz, Av, Elul, Tishrei, Cheshvan, Kislev, Tevet, Shevat, Adar (and Adar II in leap years)
Hebrew Birthday Significance
In Jewish tradition, celebrating one's Hebrew birthday (יום הולדת, Yom Huledet) has special significance:
- Spiritual Renewal: The Hebrew birthday is considered a time of spiritual renewal and reflection
- Mazal Tov: It's believed that one's mazal (luck or fortune) is stronger on their Hebrew birthday
- Custom of Celebration: Traditional celebrations may include giving charity, studying Torah, reciting psalms, and gathering with family
- Bar/Bat Mitzvah: The Hebrew birthdate determines when a child reaches the age of religious maturity (13 for boys, 12 for girls)
Hebrew Birthday Calculation Challenges
Converting between Gregorian and Hebrew dates can be complex for several reasons:
- Leap Years: The Hebrew calendar adds an entire month in leap years, shifting dates significantly
- Variable Month Lengths: Hebrew months can have 29 or 30 days, and some months (Cheshvan and Kislev) can vary in length from year to year
- Sunset Boundary: Since Hebrew days begin at sunset, a birth near sunset might fall on different Hebrew dates depending on the exact time
- Adar Complexities: Special handling is needed for births in Adar during regular years or Adar II during leap years