When does the Hebrew year begin?

The year begins with Rosh Hashanah in Tishrei (September/October on the Gregorian calendar), varying each year due to the lunisolar system.

What is today's Hebrew date?

Today's Hebrew date varies by the lunisolar calendar. Use our converter to find the current Hebrew date today, today's Hebrew date, and what is the Hebrew date today for your location.

What year is it in the Jewish calendar?

The current Jewish calendar year follows the Hebrew calendar system. Our converter shows what year is it in the Jewish calendar, what Hebrew year it is, and the current Jewish calendar year.

How do I use the Hebrew birthday calculator?

Our Hebrew birthday calculator converts your Gregorian birth date to Hebrew calendar date, helping you find your Jewish birthday and Hebrew calendar birthday for celebrations.

How do Hebrew leap years work?

Seven times in a 19-year cycle, an extra month—Adar II—is added to keep festivals in their proper seasons.

Why might holiday dates differ by location?

Customs can vary (e.g., two-day Yom Tov outside Israel); always confirm with local community guidance.

Hebrew Calendar Converter

Q: What is the Hebrew calendar?

A lunisolar calendar used by Jewish communities; lunar months are aligned with the solar year via a 19-year cycle with leap months.

Convert dates between Gregorian and Hebrew (Jewish) calendars with holiday calculations.

Conversion Direction

Gregorian Date

Select Gregorian date to convert to Hebrew

Methodology

This calculator uses astronomical algorithms based on the Hebrew calendar's lunisolar system. The conversion uses the 19-year Metonic cycle with 7 leap years and calculates dates using the average lunar month of 29.53 days. The Hebrew calendar epoch is based on the traditional creation date (Tishrei 1, Year 1 = September 7, 3761 BCE in the proleptic Gregorian calendar).

Important Disclaimers:

This calculator uses astronomical calculations and may vary ±1-2 days from traditional Hebrew calendar dates
Actual Hebrew calendar dates may differ based on rabbinical authorities and local customs
Results are based on the standard Hebrew calendar system without regional variations
For religious purposes, consult local rabbinical authorities for accurate holiday and observance dates
The calculator uses simplified postponement rules and may not account for all traditional adjustments

About This Calculator

1. How accurate is the Hebrew calendar conversion?

This calculator uses astronomical algorithms based on the Hebrew calendar's lunisolar system. Results may vary by ±1 day due to the complex postponement rules (dehiyyot) and local calendar authorities' decisions.

2. What is the Hebrew calendar based on?

The Hebrew calendar is a lunisolar calendar that combines lunar months with solar years. It has 12 months in common years and 13 months in leap years, following a 19-year Metonic cycle with 7 leap years.

3. How do leap years work in the Hebrew calendar?

The Hebrew calendar follows a 19-year cycle with leap years occurring in years 3, 6, 8, 11, 14, 17, and 19 of each cycle. In leap years, an additional month (Adar I) is inserted before the regular Adar (which becomes Adar II).

4. What are the postponement rules (dehiyyot)?

The Hebrew calendar uses postponement rules to ensure that certain holidays don't fall on specific days of the week. These rules can shift Rosh Hashanah by 1-2 days, affecting the entire year's calendar.

5. Why do Hebrew dates vary between different sources?

Hebrew calendar dates can vary due to different interpretations of the postponement rules, local customs, and the complexity of the lunisolar system. This calculator uses standard astronomical calculations for consistency.