Jewish Holidays — The Complete Guide to the Jewish Calendar

The Jewish calendar is filled with holidays, each carrying deep spiritual meaning and rich traditions. For Orthodox Jews, these are not optional celebrations — they are commandments from the Torah, observed with the same seriousness and joy as they have been for thousands of years.

The Jewish calendar is lunar-solar, meaning months follow the moon cycle but are adjusted to align with the solar year. This is why Jewish holidays fall on different dates each year on the secular calendar.

The High Holidays

Rosh Hashanah (Jewish New Year)

When: 1-2 Tishrei (September/October)

Rosh Hashanah marks the beginning of the Jewish year and the start of the Ten Days of Repentance. It is the day when, according to tradition, G-d judges every person and determines what the coming year will hold.

Key observances:

• Blowing of the shofar (ram's horn) — 100 blasts over the two days
• Festive meals with symbolic foods: apple dipped in honey (for a sweet new year), pomegranate (for merits as plentiful as its seeds), round challah (symbolizing the cycle of the year), and fish head (to be at the "head" and not the "tail")
• Extended prayers, including the powerful Unesaneh Tokef prayer
• Tashlich — a ceremony at a body of water where sins are symbolically cast away

Yom Kippur (Day of Atonement)

When: 10 Tishrei

The holiest day of the Jewish year. A 25-hour fast during which Orthodox Jews abstain from eating, drinking, wearing leather shoes, bathing, and marital relations. The day is spent almost entirely in synagogue, in intense prayer and repentance.

Key observances:

• Complete fast from before sunset to after nightfall the next day
• Wearing white clothing (symbolizing purity; many men wear a white kittel)
• Five prayer services throughout the day, climaxing in Ne'ilah — the "closing of the gates"
• The shofar is blown one final blast at the end of Ne'ilah, marking the conclusion

The Three Pilgrimage Festivals

Sukkot (Festival of Tabernacles)

When: 15-21 Tishrei

A joyful week-long holiday commemorating the Israelites' journey through the wilderness after the Exodus from Egypt. Orthodox Jews build a sukkah — a temporary hut with a roof of natural materials — and eat (and sometimes sleep) in it for the entire week.

Key observances:

• Building and dwelling in the sukkah
• Waving the lulav (palm branch) and etrog (citron) together with myrtle and willow branches
• Welcoming ushpizin (spiritual guests — Abraham, Isaac, Jacob, etc.)

Shemini Atzeret / Simchat Torah

When: 22-23 Tishrei

The final days of the Sukkot season. Simchat Torah celebrates the completion of the annual Torah reading cycle. The celebration is exuberant — dancing with Torah scrolls for hours, singing, and beginning the Torah again from the very first verse.

Pesach (Passover)

When: 15-22 Nisan (March/April)

Passover commemorates the Exodus from Egypt. For eight days, Orthodox Jews eat no chametz (leavened bread or products) — the house is thoroughly cleaned beforehand, and special Passover dishes and utensils are used.

Key observances:

• The Seder — a structured evening of storytelling, ritual foods, songs, and discussion, following the Haggadah
• Eating matzah (unleavened bread) — commemorating the bread that didn't have time to rise when the Israelites left Egypt in haste
• The Seder plate with symbolic foods: bitter herbs (maror), charoset, shank bone, egg, and karpas (vegetable)
• Selling chametz — any remaining leavened products are legally sold to a non-Jew for the duration of the holiday

Shavuot (Festival of Weeks)

When: 6-7 Sivan (May/June)

Celebrates the giving of the Torah at Mount Sinai. Many communities stay up the entire first night studying Torah (tikkun leil Shavuot).

Key observances:

• All-night Torah study
• Reading the Ten Commandments in synagogue
• Eating dairy foods (cheesecake, blintzes) — various reasons are given for this custom
• Decorating the synagogue with flowers and greenery

Other Major Holidays

Chanukah

When: 25 Kislev - 2/3 Tevet (November/December)

Celebrates the Maccabees' victory over the Syrian-Greeks and the miracle of the oil that burned for eight days in the rededicated Holy Temple.

Key observances:

• Lighting the menorah (chanukiyah) — one candle the first night, adding one each night
• Eating foods fried in oil: sufganiyot (jelly donuts) and latkes (potato pancakes)
• Playing dreidel
• Chanukah is not a "Jewish Christmas" — it is a minor holiday that has taken on greater visibility because of its proximity to Christmas on the calendar

Purim

When: 14 Adar (February/March)

Celebrates the salvation of the Jewish people from Haman's plot to destroy them, as told in the Book of Esther (Megillat Esther).

Key observances:

• Reading the Megillah (Book of Esther) twice — evening and morning
• Sending mishloach manot (food packages) to friends
• Giving gifts to the poor (matanot la'evyonim)
• A festive meal with drinking
• Wearing costumes (a beloved custom, especially for children)

Tisha B'Av (9th of Av)

When: 9 Av (July/August)

The saddest day on the Jewish calendar, commemorating the destruction of both Holy Temples in Jerusalem and other tragedies in Jewish history. A full-day fast with restrictions similar to Yom Kippur.

Key observances:

• 25-hour fast
• Reading the Book of Lamentations (Eicha)
• Sitting on low chairs (as mourners do)
• No leather shoes, bathing, or anointing

The Jewish Calendar Rhythm

What makes the Jewish holiday calendar remarkable is its rhythm. There is always something coming — a holiday, a fast day, a special Shabbat. The year is never flat or monotonous. Each season carries its own spiritual theme:

• Tishrei (fall): Judgment, repentance, joy
• Kislev/Tevet (winter): Light in darkness (Chanukah)
• Adar (late winter): Joy and salvation (Purim)
• Nisan (spring): Freedom and redemption (Passover)
• Sivan (early summer): Torah and revelation (Shavuot)
• Av (summer): Mourning and hope (Tisha B'Av)

For Orthodox Jews, the calendar is not just a schedule — it is a curriculum for the soul.