how long do you fast for yom kippur

Yom Kippur fasting lasts about 25 hours.
The fast begins at sundown on the eve of Yom Kippur (the 9th of Tishrei) and ends at nightfall the following evening, covering the full holy day from sunset to sunset plus a buffer for precise timing.

Why the 25-Hour Duration?

This extended timeframe accounts for variations in determining "sundown" and ensures the fast aligns perfectly with the biblical commandment to "afflict your souls" on the 10th of Tishrei. Unlike a standard 24-hour day, it starts before sunset on the eve and concludes after full nightfall, creating space for spiritual focus amid repentance rituals.

Traditional sources like Chabad emphasize no food, drink (even water), bathing, leather shoes, or marital relations during this period to heighten contrition and prayer.

Who Fasts and Exemptions

Not everyone fasts fully—Jewish law prioritizes health:

• Children : Under 13 (boys) or 12 (girls) are exempt; older kids may fast partially.

• Health issues : Pregnant women, the elderly, ill, or travelers can eat if needed, often in small amounts ("eating like a bridegroom").

• Preparation tips : Hydrate well beforehand with carb-rich meals to ease the fast, as shared in personal stories from observers.

Spiritual Meaning Behind the Fast

Fasting purifies the body to elevate the soul, fostering humility and atonement after Rosh Hashanah's judgment period. Many describe it as transformative—like my first fast felt grueling, but it opened deeper reflection on forgiveness.

In 2025, Yom Kippur fell October 1-2; next year (2026) expect similar fall timing around late September.

Variations in Observance

• Orthodox : Strict 25-hour no-food/drink.
• Reform/Conservative : Some shorten or adapt for inclusivity.
• Global times : Vary by location (e.g., Israel vs. U.S.), so check local calendars.

TL;DR : Fast 25 hours from sundown to nightfall for full observance, with exemptions for health—focus on spiritual renewal.

Information gathered from public forums or data available on the internet and portrayed here.