Rahu Kaal Calculator
Calculate the exact daily Rahu Kaal window for your location. Avoid starting new ventures, contracts, or auspicious events during this 90-minute daily period.
How Rahu Kaal is Calculated
Rahu Kaal (Rahu Kalam) is a 90-minute time period each day ruled by the shadow planet Rahu. In Vedic astrology, undertaking important activities, signing legal contracts, or beginning auspicious ceremonies during Rahu Kaal is strictly avoided.
Rahu Kaal is calculated by determining the exact local sunrise and sunset using Swiss Ephemeris and dividing the daylight duration (Dina Mana) into eight equal segments.
Each day of the week assigns Rahu Kaal to a fixed segment: Monday (2nd), Saturday (3rd), Friday (4th), Wednesday (5th), Thursday (6th), Tuesday (7th), and Sunday (8th).
Raj Shukla
Senior Vedic Astrology AnalystSpecializes in Parashari transit calculations, planetary dasha mapping, and astronomical ephemeris models.
Hello! I'm Raj Shukla. Over the past 12+ years of studying and writing about classical Vedic astrology, I've authored 500+ analytical guides on planetary transits, dasha timelines, and Nakshatra energies. I oversee AstroPredict's calculation framework for Rahu Kaal Calculator to ensure every calculation combines 100% ephemeris mathematical precision with clear, actionable insights.
Why Rahu Kaal Matters
Rahu is known as the planetary node of illusion and disruption. While routine and ongoing work can proceed normally, starting new ventures during this window often faces unforeseen obstacles.
Daylight Division Rule
Because days are longer in summer and shorter in winter, Rahu Kaal is never exactly 90 minutes; its length dynamically expands and contracts with actual daylight duration.
Permissible Activities
Spiritual worship of Rahu, meditation, regular daily chores, and pre-existing ongoing tasks can continue without interruption during Rahu Kaal.
Frequently Asked Questions
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