OhMyCalc

Hebrew Calendar Converter

Convert dates between the Gregorian and Hebrew calendar systems.

How to Use the Hebrew Calendar Converter

  1. Select the conversion direction: Gregorian to Hebrew or Hebrew to Gregorian.
  2. Enter the year, month, and day for the date you want to convert.
  3. Click Convert to see the equivalent date in the other calendar system.
  4. The result also shows the Hebrew year type and whether it is a leap year.

使用场景

公式

The Hebrew calendar is a lunisolar calendar. Conversion uses the Julian Day Number (JDN) as an intermediate step. Leap years add a 13th month (Adar II) in a 19-year Metonic cycle.

常见问题

What is the Hebrew calendar?
The Hebrew calendar is a lunisolar calendar used by Jewish communities for religious observances. It is based on both lunar months and the solar year. The year count (Anno Mundi) starts from the traditional date of creation, making 2024 CE correspond to approximately 5784–5785 AM.
What are deficient, regular, and complete Hebrew years?
Hebrew years vary slightly in length. A deficient year has 353 days (or 383 in a leap year), a regular year has 354 days (384), and a complete year has 355 days (385). The difference lies in whether the months Cheshvan and Kislev have 29 or 30 days.
How often does a Hebrew leap year occur?
Hebrew leap years occur 7 times in every 19-year Metonic cycle (years 3, 6, 8, 11, 14, 17, and 19 of the cycle). A leap year adds the month Adar I before the regular Adar (renamed Adar II).