When is Yom Kippur 2025? Dates, Rules, and Greetings
If you’re planning ahead for October 2025, you might notice a date that doesn’t look like a typical holiday. Yom Kippur, the holiest day in Judaism, begins at sunset on October 1 and ends at nightfall on October 2, 2025 — non-Jewish colleagues, neighbors, and curious readers need the date, rules, and respectful greetings.
Date in 2025: Begins sunset October 1, ends nightfall October 2 ·
Hebrew Year: 5786 ·
Duration: Approximately 25 hours ·
Observances: Fasting, prayer, refraining from work
Quick snapshot
- Yom Kippur 2025 begins at sunset on October 1 and ends at nightfall on October 2 (Hebcal (Jewish calendar tool))
- The fast lasts approximately 25 hours (TIME (news magazine))
- The exact minute of sunset varies by location in Israel vs. USA (Hebcal (Jewish calendar tool))
- Yom Kippur always falls on the 10th of Tishrei, ten days after Rosh Hashanah (Wikipedia (online encyclopedia))
- Yom Kippur 2026 will begin on September 20–21, 2026 (Hebcal (Jewish calendar tool))
Four key facts about Yom Kippur 2025 at a glance — one pattern: every source agrees on the date and duration, but the start time depends on your location.
| Category | Details |
|---|---|
| Date 2025 | Sunset Oct 1 – nightfall Oct 2 |
| Type | Most holy day in Judaism |
| Observance | Fasting, prayer, repentance |
| Work Prohibition | Yes, biblically mandated |
| Hebrew Year | 5786 |
| Duration | Approximately 25 hours |
| Common Greeting | “Gmar chatima tova” |
| Leather Shoes | Avoided |
When is Yom Kippur 2025?
Exact start and end times for 2025
- Yom Kippur 2025 begins at sundown on Wednesday, October 1, 2025, and ends at nightfall on Thursday, October 2, 2025 (The Sukkah Project (holiday calendar)).
- Another guide also places the date on sunset October 1 to nightfall October 2 (Unpacked (Jewish media)).
- Hebcal lists Yom Kippur for Hebrew year 5786 as beginning on Wednesday, 1 October 2025 and ending on Thursday, 2 October 2025 (Hebcal (Jewish calendar tool)).
Yom Kippur always falls on the 10th day of Tishrei, ten days after Rosh Hashanah (The Sukkah Project (holiday guide)). The holiday can only occur on Monday, Tuesday, Thursday, or Saturday (Wikipedia (online encyclopedia)). The earliest possible Gregorian date is September 14 (Wikipedia (online encyclopedia)).
Yom Kippur 2025 in Israel vs. USA
- The exact minute of sunset varies by location — in Israel, the fast may start a few minutes earlier or later than in the USA (Hebcal (Jewish calendar tool)).
- Yom Kippur concludes when three stars become visible in the sky (The Sukkah Project (holiday guide)).
The implication: the date is consistent across sources, but precise observance times require checking local conditions.
What is Yom Kippur?
Meaning of Yom Kippur in Judaism
- Yom Kippur is commonly called the Day of Atonement (Wikipedia (online encyclopedia)).
- It is the holiest day in the Jewish calendar, marking the end of the Ten Days of Repentance (Chabad.org (Jewish outreach organization)).
- J Weekly explains that Yom Kippur is a solemn fast day centered on confession, repentance, and introspection (J Weekly (Jewish community newspaper)).
Why is Yom Kippur the holiest day of the year?
- According to Jewish tradition, God inscribes each person’s fate for the coming year on Rosh Hashanah and seals the verdict on Yom Kippur (My Jewish Learning (Jewish education site)).
- The day is devoted to intensive prayer, fasting, and asking for forgiveness from God and from other people.
For non-Jewish readers, understanding that Yom Kippur is a day of deep spiritual focus explains why it’s not a time for casual socializing or celebration.
The pattern: the day’s solemnity dictates both religious practice and social etiquette for observers and non-observers alike.
What are the five rules of Yom Kippur?
Fasting and abstaining from food and drink
- Reform Judaism lists five core abstentions on Yom Kippur: eating and drinking, wearing leather, bathing and shaving, anointing with oils, and marital relations (ReformJudaism.org (Reform Jewish movement)).
- The total fast lasts approximately 25 hours (TIME (news magazine)).
No washing or anointing
- Bathing and shaving are prohibited, as is the use of oils, perfumes, or lotions (ReformJudaism.org (Reform Jewish movement)).
No wearing leather shoes
- Leather shoes are avoided as a sign of humility and asceticism (ReformJudaism.org (Reform Jewish movement)).
No marital relations
- Sexual activity is abstained from during the holiday (ReformJudaism.org (Reform Jewish movement)).
No work or business
- Refraining from work is biblically mandated, similar to the Sabbath (Wikipedia (online encyclopedia)).
The catch: each prohibition serves a single purpose — removing distractions from the day’s spiritual work.
What do you say to someone on Yom Kippur?
Appropriate greetings for Jewish observers
- My Jewish Learning says the most common greeting on Yom Kippur is “g’mar chatima tovah,” meaning “a good final sealing” (My Jewish Learning (Jewish education site)).
- Reform Judaism says appropriate Yom Kippur greetings include “g’mar chatima tovah” and “tzom kal” (easy fast) (ReformJudaism.org (Reform Jewish movement)).
- Chabad says Yom Kippur greetings express a wish for a “Good Final Sealing” and an “easy fast” (Chabad.org (Jewish outreach organization)).
What non-Jews should say to Jewish colleagues and friends
- Time says the best English greeting to someone observing Yom Kippur is “have an easy fast” (TIME (news magazine)).
- FāVS News advises non-Jews to say “Have a meaningful fast” as a respectful greeting (FāVS News (interfaith news site)).
- Avoid “Happy Yom Kippur” — it’s a solemn day of atonement, not a celebration.
Saying “easy fast” is safe and respectful. Saying “Gmar chatima tova” shows deeper knowledge, but can feel awkward if you’re not Jewish. Either works — the key is showing you care.
What this means: a simple phrase shows respect without requiring deep cultural knowledge.
What is not forgiven on Yom Kippur?
Sins against other people require direct apology
- Jewish tradition teaches that Yom Kippur atones only for sins between a person and God. Sins against another person require making amends directly with that person first (My Jewish Learning (Jewish education site)).
The three unforgivable sins in Jewish tradition
- Idolatry, murder, and adultery are considered grave sins that are not automatically forgiven even on Yom Kippur (Wikipedia (online encyclopedia)).
The implication: interpersonal reconciliation must happen directly, independent of the holiday.
What should you wear on Yom Kippur?
Traditional white clothing
- White symbolizes purity and is worn by many as a sign of spiritual cleanliness (ReformJudaism.org (Reform Jewish movement)).
No leather shoes
- Leather is avoided as a sign of humility — many wear canvas or rubber shoes, or even go barefoot indoors (Chabad.org (Jewish outreach organization)).
Dress code for women and men
- Modest attire is customary — men often wear a white kittel (robe), women wear white dresses or blouses with skirts (ReformJudaism.org (Reform Jewish movement)).
- Non-Jewish visitors to a synagogue should also dress modestly — no jeans, no shorts, and no leather shoes.
If you’re a non-Jewish friend attending a Yom Kippur service, white clothing and non-leather shoes will show respect and avoid awkwardness.
The pattern: attire choices signal humility and respect for the day’s solemn purpose.
Timeline: Yom Kippur 2025 and beyond
- October 1, 2025 (sunset) — Yom Kippur begins (Hebcal (Jewish calendar tool))
- October 2, 2025 (nightfall) — Yom Kippur ends (Hebcal (Jewish calendar tool))
- September 20–21, 2026 — Yom Kippur 2026 (Hebcal (Jewish calendar tool))
The pattern: Yom Kippur shifts about 10 days earlier each Gregorian year, tracking the Jewish lunar calendar.
What’s confirmed and what’s unclear about Yom Kippur 2025
Confirmed facts
- Yom Kippur 2025 begins at sunset on October 1 and ends at nightfall on October 2 (Hebcal (Jewish calendar tool), The Sukkah Project (holiday calendar)).
- Fasting lasts approximately 25 hours (TIME (news magazine)).
- Five prohibitions are observed: no food/drink, no leather, no washing, no anointing, no marital relations (ReformJudaism.org (Reform Jewish movement)).
What’s unclear
- Exact minute of sunset varies by location in Israel vs. USA (Hebcal (Jewish calendar tool)).
- Whether brushing teeth is permitted on Yom Kippur varies by interpretation and custom (ReformJudaism.org (Reform Jewish movement)).
- The exact time of nightfall (when three stars appear) shifts by latitude and weather (The Sukkah Project (holiday guide)).
The pattern: what’s confirmed are the calendar date and core practices; what’s unclear are location-specific timings and minor customs.
What experts say about Yom Kippur
“Yom Kippur is a solemn fast day centered on confession, repentance, and introspection.”
— J Weekly (Jewish community newspaper) (source)
“The most common greeting on Yom Kippur is ‘g’mar chatima tovah,’ meaning ‘a good final sealing.’”
— My Jewish Learning (Jewish education site) (source)
“Yom Kippur greetings express a wish for a ‘Good Final Sealing’ and an ‘easy fast.’”
— Chabad.org (Jewish outreach organization) (source)
For non-Jewish readers, the implication is clear: Yom Kippur is a serious, reflective day. Respecting it means knowing the date, the rules, and the right words. Misunderstanding can cause awkwardness, but a simple “have an easy fast” goes a long way for anyone wanting to show respect to Jewish observers.
Related reading: Lunar New Year 2026: Dates, Animal & Fire Horse Zodiac · Night of Champions 2025: Results, Time & Netflix Guide
Frequently asked questions
Is Yom Kippur a public holiday in the United States?
No, Yom Kippur is not a federal public holiday in the United States, but many Jewish businesses and schools close. Some employers offer flexible leave for religious observance.
Can you drink water on Yom Kippur?
No, the fast includes both food and water. Drinking water is prohibited during the 25-hour fast, though exceptions are made for health reasons.
What time does Yom Kippur fast start and end?
The fast begins at sunset on October 1, 2025, and ends at nightfall on October 2, 2025. The exact time depends on your location.
Can you brush your teeth on Yom Kippur?
Brushing teeth is generally not permitted because it involves water and may be considered washing. Some people use a dry toothbrush or mouthwash without water.
What prayers are said on Yom Kippur?
The Kol Nidre service opens the holiday, followed by day-long prayers including the Al Chet confession and the Neilah closing service (J Weekly (Jewish community newspaper)).
What is the significance of the shofar on Yom Kippur?
The shofar (ram’s horn) is blown at the end of the Neilah service to mark the conclusion of Yom Kippur. It symbolizes the end of the fast and the sealing of the verdict.
Are children required to fast on Yom Kippur?
Children under the age of 13 (boys) or 12 (girls) are not required to fast. However, many parents encourage children to practice partial fasting as a learning experience.
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