Rahu, the 8th planet, in shadows and like Ketu, this planet is also not visible in the galaxy. A mine of information about Rahu is available in Brahma puraana, Mahabhagavata, Mahabharat, Matsya puraan, Vishnu puraan and Rigved.

Rahu Kaal refers to the bad time or inauspicious time on every day which is not considered favourable to start any new activity. As per Hindu astrology, Rahu Kaal covers a span of about 90 minutes every day in between sunrise and sunset. 

RAHU KAAL IS NOT AN AUSPICIOUS TIME

Rahu Kaal is given utmost importance. While looking for Muhurats, this period is strictly avoided. As per popular belief, auspicious works done during this time will never give good results. People do not commence new ventures, marriage proposals, journeys, trades, interviews, trades, business deals, sale or purchase of assets, and any other important ventures during this period.

RAHU KAAL TIMING ON DIFFERENT DAYS OF THE WEEK

DayTime
Monday07:30  – 09:00 am
Tuesday03:00  – 04:30 pm
Wednesday12:00 – 01:30 pm
Thursday01:30  – 03:00 pm
Friday10:30  – 12:00 am
Saturday09:00  – 10:30 am
Sunday04:30  – 06:00 pm

RAHU AND RAHU KAAL

Rahu was born to Simhika and Viprachitti. Rahu’s mother simhika (also known as Simhita) was the daughter of Hiranyakashyapa (Bhakta Prahlada’s father). There are several brothers to Rahu and they are Salya, Nabha, Vaataapi, Ilvala and Namuchi. It is also believed that Rahu is the eldest of the 100 brothers. He also has a sister by name Maahishmati.Born into paithenasa gotra, He was born in the year parthiva in bhaadrapada maasa, krishna paksha on the fourteenth day of the wanning moon on a Sunday. Two days before NAVRATRI. Visakha is his birth star.
In iconography, Rahu is depicted with a human head and serpent body and seated in a chariot drawn by eight black horses.