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Adhika Masa – Extra Month in Hindu Calendar

Hindu Calendar has the concept of extra month or the Adhika Masa. It is based on the Lunar Calendar and in places like Assam, Bengal, Kerala, Orissa and Tamil Nadu where Solar Calendar is followed, there is no concept of Adhika Masa.

This is because the Hindu calendar is a lunar calendar and is based on the cycles of the Moon. A lunar month is around 29.5 days long. But, a solar month, that is the normal calendar, is 30 to 31 days.

The lunar year consists of 354 solar days and solar year consists of 365 days. So, as years pass by each lunar month starts earlier to the corresponding solar month. There is a difference of 11 days between the lunar and solar year. In every two or three solar years the difference between the two calendars becomes a full month or around 29 days. To compensate and get the two calendars similar an extra month is added.

According to Vasishta Siddhanta the Adhika Masa occurs after every 32 months, 16 days and 8 Ghadis. A Ghadi is 24 minutes.

Now, in Andhra Pradesh, Karnataka, Maharashtra and Gujarat the lunar month begins and ends with the new moon or no moon (amavasya). In North India, the lunar month begins and ends with full moon (purnima).

How is Adhika Masa Calculated?

The sun changes its sign or rashi every month and the day it enters a Rashi is called as its ingress into a Rashi. A lunar month in which there is no sun ingress into a Rashi is considered an Adhika Masa. Adhika Masa occurs once in 32 solar months and 16 days.



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One Response to "Adhika Masa – Extra Month in Hindu Calendar"

  1. Hemakshi says:

    two adhik masa in hindu calendar

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