Rahu Kalam (రాహు కాలం) is one of the most widely observed inauspicious time periods in Hindu tradition. Named after the shadow planet Rahu (the Moon's North Node), this daily period lasting approximately 90 minutes is considered unfavorable for starting any new or important activity. Understanding Rahu Kalam helps you plan your day according to Vedic time management principles.
What is Rahu Kalam?
Rahu is one of the Navagrahas (nine celestial bodies) in Vedic astrology. Although Rahu is not a physical planet — it is the ascending node of the Moon's orbit — it wields significant astrological influence. The period ruled by Rahu each day is called Rahu Kalam, and it carries the malefic energy associated with this shadow planet.
How is Rahu Kalam Calculated?
The day (sunrise to sunset) is divided into 8 equal parts, each lasting approximately 90 minutes. Rahu Kalam occupies one of these eight slots depending on the day of the week. The schedule follows a fixed pattern:
Monday (సోమవారం): 1st slot (7:30 - 9:00 AM approx.) Saturday (శనివారం): 2nd slot (9:00 - 10:30 AM approx.) Friday (శుక్రవారం): 3rd slot (10:30 - 12:00 PM approx.) Wednesday (బుధవారం): 4th slot (12:00 - 1:30 PM approx.) Thursday (గురువారం): 5th slot (1:30 - 3:00 PM approx.) Tuesday (మంగళవారం): 6th slot (3:00 - 4:30 PM approx.) Sunday (ఆదివారం): 7th slot (4:30 - 6:00 PM approx.)
A popular mnemonic to remember the order is
"Mother Saw Father Wearing The Turban on Sunday" : Monday, Saturday, Friday, Wednesday, Thursday, Tuesday, Sunday corresponding to slots 1 through 7.
Important
The times above are approximate for a 6 AM sunrise. Since Rahu Kalam is calculated from actual sunrise and sunset, the exact times vary by location and season. In summer, when days are longer, each slot is longer. In winter, slots are shorter. Always use a location-specific Panchangam for accurate times.
What to Avoid During Rahu Kalam
During Rahu Kalam, it is traditionally advised to avoid: starting a new business or signing important contracts, beginning a journey (especially long-distance), conducting Griha Pravesh (housewarming), purchasing expensive items like vehicles or property, starting educational courses or new jobs, performing auspicious ceremonies like weddings or engagements, and initiating any venture where you want a favorable outcome.
What is Permitted During Rahu Kalam
Rahu Kalam restrictions apply only to new beginnings and auspicious starts. You can freely: continue work that was already in progress, eat meals and carry on routine activities, attend meetings that do not involve new agreements, perform daily prayers and meditation, and handle emergencies and urgent matters.
Additionally, some traditions hold that Rahu Kalam is actually auspicious for worshipping Goddess Durga and for performing remedial pujas to pacify Rahu. Visiting Rahu temples during Rahu Kalam is considered especially effective.
Other Inauspicious Periods
Besides Rahu Kalam, the Panchangam also marks Yamagandam (యమగండం) — another inauspicious period ruled by Yama, the god of death. Yamagandam is particularly avoided for activities related to health and travel. Gulikai Kalam is a third period to be aware of, though it is less commonly observed in Telugu-speaking regions.
The combined awareness of Rahu Kalam, Yamagandam, and the auspicious Abhijit Muhurtam (a universally favorable ~48-minute window around noon) gives you a practical framework for daily time planning in the Vedic tradition. Modern tools like Nitya Panchangam calculate these periods precisely for your location, taking the guesswork out of traditional timekeeping.
Nitya Panchangam Editorial
Vedic Calendar & Astrology Editors
The Nitya Panchangam editorial team researches and writes on Vedic astronomy, traditional Panchangam calculations, Hindu festivals, and Muhurtam. All articles are reviewed against classical references including Surya Siddhanta, Muhurta Chintamani, and modern astronomical data (Lahiri Ayanamsa).
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