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Yamagandam Calculator

Yamagandam ("Yama's affliction") is a second daily inauspicious window, alongside Rahu Kalam, associated with Yama — the deity of death and restraint. Like Rahu Kalam, it falls in one specific eighth of the daylight hours, with its own distinct weekday-to-segment mapping. This calculator computes its precise start and end time for any date and place.

Day divided into 8 equal periods (sunrise to sunset) · Fixed classical weekday-to-segment mapping, distinct from the Rahu Kalam mapping

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James Whitfield

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Sarah Mitchell, M.A. in Cultural Astronomy & Astrology and Marcus Reynolds, Professional Astrologer & Astronomer

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What Is Yamagandam?

Yamagandam uses the same 8-equal-segments-of-daylight structure as Rahu Kalam, but with its own separate weekday-to-segment table — meaning the two windows fall at different times on the same day and are governed by different classical rulers, Yama rather than Rahu.

Why Yama Specifically

Yama governs death, restraint, and the boundaries of a lifespan in classical mythology, and this window is traditionally treated with a similar caution to Rahu Kalam — generally avoided for launching new ventures, though, again, this concerns beginnings specifically rather than all activity during the window.

Rahu Kalam vs. Yamagandam: Using Both Together

Many practitioners check both windows together when planning an important start time, since they occupy different segments of the day and avoiding both narrows the safe scheduling window somewhat further than checking either alone.

Yamagandam Calculator FAQs

What is Yamagandam?
A daily inauspicious period, roughly 1.5 hours long, falling in a fixed eighth of the daylight hours (governed by its own weekday-to-segment table), associated with Yama and traditionally avoided for starting new ventures.
How is Yamagandam different from Rahu Kalam?
Both use the same 8-part daylight division, but each has its own separate weekday-to-segment mapping, so the two windows occur at different times of day and are associated with different classical rulers.
Do Rahu Kalam and Yamagandam ever overlap?
No — their classical weekday-to-segment tables assign each a different segment on every day of the week, so the two windows are always distinct.
Should I check both Rahu Kalam and Yamagandam before an important event?
Many practitioners do check both together, along with the Abhijit Muhurat and the day's Choghadiya, for a fuller picture before finalizing an important start time.
Does Yamagandam apply at night as well?
No — like Rahu Kalam, Yamagandam is classically computed only within the daylight span (sunrise to sunset), not extended into the night hours.

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