Lag B´Omer is traditionally believed to be the death anniversary (yahrzeit) of Rabbi Shimon bar Yochai, a revered 2nd-century Jewish sage and mystic.

Rabbi Shimon bar Yochai
Also known as Rashbi, Rabbi Shimon bar Yochai was a disciple of Rabbi Akiva and is associated with the authorship of the Zohar, the foundational text of Jewish mysticism (Kabbalah). According to tradition, he revealed deep spiritual insights to his students on the day of his death, which is why the day is marked not with mourning but with celebration.

Bonfires in His Honor
The lighting of bonfires on Lag B´Omer symbolizes the spiritual light and wisdom that Rabbi Shimon bar Yochai brought into the world. In Israel, tens of thousands of people gather at his tomb on Mount Meron for singing, dancing, and prayer in one of the largest religious gatherings in the country.

Not a Day of Sadness
Though it marks his passing, Lag B´Omer is not observed as a day of sorrow. Instead, it is celebrated with joy, reflecting the mystical tradition that Rabbi Shimon’s soul ascended in light and holiness.

Lag B´Omer is celebrated on the 18th day of the Hebrew month of Iyar, which is the 33rd day of the Counting of the Omer—a ritual counting period between Passover and Shavuot.

Date in the Gregorian Calendar
Because the Hebrew calendar is lunar-based, the Gregorian date for Lag B´Omer changes each year. It usually falls in April or May.

Upcoming Dates for Lag B´Omer

• 2025: Friday, May 16

• 2026: Tuesday, May 5

• 2027: Tuesday, May 25

• 2028: Sunday, May 14

• 2029: Thursday, May 3

• 2030: Tuesday, May 21

Note: Jewish holidays begin at sundown the evening before the date listed, so celebrations typically start the night before.

Lag B´Omer holds cultural, spiritual, and historical significance within the Jewish tradition.

Commemoration of a Break in Mourning
The Counting of the Omer, between Passover and Shavuot, is traditionally a period of mourning. Lag B´Omer marks a joyful break in this time. According to tradition, a deadly plague that killed thousands of Rabbi Akiva’s students ended on this 33rd day, making it a day of relief and celebration.

Honoring Rabbi Shimon bar Yochai
Lag B´Omer is also believed to be the yahrzeit (anniversary of death) of Rabbi Shimon bar Yochai, a renowned 2nd-century sage and mystic. He is traditionally credited with authoring the Zohar, a foundational text of Kabbalah (Jewish mysticism). It is said that on the day of his death, he revealed profound spiritual secrets. Bonfires are lit in his honor to symbolize the light of his teachings.

Spiritual and Communal Celebration
The day offers a chance for the Jewish community to come together in joy and unity. Through bonfires, music, dancing, and festive activities like archery and first haircuts for young boys, the holiday encourages spiritual connection, hope, and Jewish identity, especially in times of historical hardship.

Cultural Significance in Israel
In Israel, Lag B´Omer is widely celebrated with pilgrimages to Rabbi Shimon bar Yochai’s tomb at Mount Meron. The large gatherings and joyful atmosphere have made the holiday one of the most vibrant on the Jewish calendar.

Lag BaOmer
Celebrated on the 33rd day of the Counting of the Omer holy period, Lag B´Omer (or Lag BaOmer) recalls great sages and ancient miracles.

Bonfires light up the night sky as part of Lag B´Omer festivities.

Is Lag B´Omer a Public Holiday?
While this is not a public holiday in the United States, some Jewish-run organizations are closed on this date.

When Is Lag B´Omer?
Lag B´Omer is celebrated on the 18th day of the month of Iyar in the Hebrew calendar, which usually falls in May in the Gregorian calendar.

Counting of the Sheaves
The name refers to the 33rd day of the Omer, which is a counting period between Passover and Shavuot. According to Leviticus, God commanded people to bring a sheaf of barley for 50 days. This ritual became known as the “Counting of the Omer.”

The 33rd day became special possibly because of an ancient spring festival, or because it marked the end of a deadly plague among Rabbi Akiva’s students in the 2nd century CE.

Bonfires and Bows
Bonfires symbolize spiritual light and the teachings of Rabbi Shimon bar Yochai, a 2nd-century sage. Others link the fire tradition to European May Day customs.

In Israel, huge celebrations are held at Rabbi Shimon’s tomb in Meron, with singing, dancing, and feasting.

Children play with bows and arrows to recall the rainbow (keshet) sent by God after the flood, as a sign of hope.

A Ritual Haircut
The upsherin is a traditional first haircut given to three-year-old boys on Lag B´Omer, especially in Hasidic communities. Hair cutting is normally forbidden during the Omer period, but allowed on this day.

Jewish Holidays Last Longer Outside of Israel
In the diaspora, most holidays are observed for an extra day due to ancient communication delays in announcing the new month. This practice continues today for most holidays except Yom Kippur and Rosh Hashana.

Lag BaOmer in Other Countries
Jewish communities worldwide observe this day with bonfires, picnics, and outdoor games, even if it is not a public holiday.