Hebrew Calendar Tool
Enter the Gregorian (civil) date of your loved one's passing to instantly find the Hebrew calendar date and all upcoming Yahrzeit anniversaries.
What is a Yahrzeit? The Yahrzeit (יאָרצײַט) is the Hebrew anniversary of a person's passing, observed each year on the same Hebrew calendar date.
Why does the date differ? The Hebrew calendar is lunisolar — months follow the moon while years align with the sun — so the Gregorian date shifts each year.
Leap years: In Hebrew leap years, an extra month (Adar II) is added. If the passing occurred in Adar, the Yahrzeit is observed in Adar II during leap years.
Understanding the Hebrew Calendar
The Hebrew calendar follows both the moon (months) and the sun (years). Each month begins at the new moon, and a leap month is added 7 times every 19 years to keep the calendar aligned with the seasons.
The Yahrzeit is observed on the Hebrew anniversary of the day of passing — not the burial. It begins at nightfall the evening before and continues through the following day, following the Jewish concept of a day starting at sunset.
In a Hebrew leap year, there are two months of Adar: Adar I and Adar II. If a loved one passed away in Adar during a non-leap year, the Yahrzeit is observed in Adar II during leap years.