Rahu Kaal Windowराहु काल
The daily 90-minute window ruled by the shadow planet Rahu when new beginnings are avoided.
Best for
- ✓Rahu mantra japa
- ✓Rahu shanti homa
- ✓Visiting Kalahasti or Tiruvannamalai for Rahu remedies
- ✓Donating black sesame and blankets
- ✓Feeding crows
- ✓Introspection and silence
Avoid
- ✗Marriage ceremonies
- ✗Starting a new job
- ✗Buying property
- ✗Travel for fresh ventures
- ✗Signing financial documents
- ✗Major medical procedures
- ✗Inaugurations
Spiritual Significance
Rahu is the severed head of the asura Svarbhanu who stole a sip of amrita during the Samudra Manthan, and Vishnu in his Mohini avatar beheaded him with the Sudarshana chakra — yet because the nectar had already touched his throat, the head became immortal as Rahu. The Brahma Vaivarta Purana and the Surya Siddhanta describe how this shadow graha rules a fixed slice of every day, casting a tamasic veil over any action begun within it. The Kalahasti temple in Andhra Pradesh and the Tirunageswaram temple in Tamil Nadu are the two principal kshetras where Rahu dosha is propitiated, and Rahu Kaal is the prescribed window for their abhisheka. Devotees believe that actions initiated in Rahu Kaal carry hidden obstructions that surface much later, often as legal entanglement or sudden reversal. However, the same window is paradoxically powerful for upasana of Rahu himself — sadhakas of Pratyangira Devi and Chinnamasta perform their core practice in this slot because the shadow energy amplifies tantric work.
How to Calculate
Divide the total daylight duration (sunrise to sunset) into eight equal parts. Rahu Kaal occupies a different part on each weekday: Sunday the 8th part, Monday the 2nd, Tuesday the 7th, Wednesday the 5th, Thursday the 6th, Friday the 4th, Saturday the 3rd. Multiply the part-length by the corresponding ordinal and add to sunrise to find the start. Because the daylight varies seasonally, the clock-time of Rahu Kaal shifts every day.
Modern Application
Rahu Kaal has crossed from panchang into mainstream Indian decision-making — sub-registrar offices, car showrooms, and even ride-hailing drivers in Bengaluru reschedule deliveries to avoid it. Wedding planners build their itineraries around the days Rahu Kaal slot, and IT recruiters in Chennai are known to defer offer-letter releases. Devotional apps push a daily caution card during Rahu Kaal and offer a one-tap booking for online Rahu pooja at Kalahasti. Some fintech apps even disable large-ticket transaction prompts during the window for opted-in users, blending astrology with UX.
Today's Rahu Kaal Window in your local time
Live panchang shows today's exact timing for your city.