Rahukalam is a period of approximately 90 minutes each day that is considered inauspicious for starting new ventures. The name comes from Rahu, the north node of the Moon, which is associated with sudden changes, illusions, and obstacles in Vedic astrology. Anything begun during Rahukalam is believed to face unexpected hurdles.

When Does Rahukalam Occur?

Rahukalam shifts every day of the week. It falls in the 2nd part of the day on Sunday, 7th part on Monday, 5th part on Tuesday, 4th part on Wednesday, 6th part on Thursday, 3rd part on Friday, and 8th part on Saturday. Since each 'part' is calculated by dividing daylight hours into 8 equal segments, Rahukalam timings vary by location and season.

What Not to Do During Rahukalam

Traditionally, one avoids starting journeys, signing important documents, making investments, conducting puja rituals, or beginning new business activities during Rahukalam. Emergency situations are exceptions — the restriction is specifically about intentional new beginnings, not activities already in progress.

Rahukalam vs Yamagandam and Gulikakalam

The Panchangam lists three inauspicious windows each day: Rahukalam (Rahu's period), Yamagandam (Yama's period), and Gulikakalam (Saturn's shadow period). Of these, Rahukalam is the most strictly observed in Telugu households. Knowing all three helps you plan the best windows for important work.