By Pt. Sanjeev Sharma
Lunar months and the count of Ekadashi

In Hindu tradition and Vedic astrology, the Ekadashi tithi holds an extremely special place. This date is not merely a calendar calculation, it also stands as a symbol of discipline, restraint and inner purification.
| Subject | Details |
|---|---|
| Fortnights in a month | Shukla Paksha and Krishna Paksha |
| Ekadashi in one fortnight | One |
| Ekadashi in a normal year | 24 |
| Ekadashi in an Adhik Maas year | 26 |
| Source of extra Ekadashi | Purushottam Maas |
Every lunar month is divided into two parts. The first part is called Shukla Paksha, during which the moon waxes. The second part is called Krishna Paksha, during which the moon wanes. In both fortnights, the eleventh tithi is known as Ekadashi. This is why a normal year has a total of twenty four Ekadashi dates, since twelve months each give two Ekadashi occasions.
Once every three years, an extra month is added to the calendar, known as Adhik Maas or Purushottam Maas. This is added to balance the difference between the lunar year and the solar year.
| Aspect | Details |
|---|---|
| Reason | Difference between lunar and solar year |
| Frequency | Once every three years |
| Name | Adhik Maas or Purushottam Maas |
| Extra Ekadashi | 2 |
| Total Ekadashi in that year | 26 |
When this extra month is added to the calendar, two additional Ekadashi dates come along with it. This is why, in that particular year, the number of Ekadashi occasions increases from twenty four to twenty six. This calculation is not merely mathematical balance, it shows that even the movement of nature and time carries a subtle order within it.
The Ekadashi tithi is considered especially suitable for the worship of Lord Vishnu. This date offers an opportunity to gain control over the mind, the senses and the body.
Every Ekadashi carries its own name, story and significance, yet the underlying purpose remains the same, which is purification of the mind. When a person observes Ekadashi regularly, desires gradually become restrained and life gains greater stability.
Although the basic nature of Ekadashi in both fortnights is the same, a subtle difference in energy and experience is believed to exist behind them.
| Paksha | Position of the moon | Experience |
|---|---|---|
| Shukla Paksha Ekadashi | Moon waxing | Increase in energy |
| Krishna Paksha Ekadashi | Moon waning | Tendency toward introspection |
During Shukla Paksha Ekadashi, the mind often remains more active and hopeful, while during Krishna Paksha Ekadashi, a person tends to turn more inward. This difference is believed to arise from the movement of the moon and its influence on the mind, since in Vedic astrology the moon is considered the significator of the mind.
Some general rules for observing the Ekadashi fast are mentioned in calendar tradition.
| Rule | Details |
|---|---|
| Avoiding grains | Many devotees avoid grains |
| Sattvic diet | Fruits, milk and simple food are preferred |
| Mental restraint | Avoiding anger and arguments |
| Worship | Devotion to Lord Vishnu |
| Night vigil | Some traditions observe a night vigil |
These rules are not meant only for physical discipline. Their purpose is also to restrain the mind, since in Vedic understanding both body and mind should be purified together.
This calculation of Ekadashi shows how subtle and balanced the Vedic calendar truly is. When the lunar year begins to fall behind the solar year, this gap is bridged by adding an extra month. Because of this adjustment, the number of Ekadashi dates naturally increases in certain years.
| Element | Role |
|---|---|
| Lunar year | Basis of tithi and paksha |
| Solar year | Basis of season and month |
| Adhik Maas | Balance between the two |
| Ekadashi | A medium for sadhana |
This system is not merely mathematical. It shows that there is a deep rhythm within the movement of time itself, one that ancient sages understood with great subtlety and preserved in the form of the calendar.
Even in modern life, the usefulness of the Ekadashi fast has not diminished. A person who observes this tithi regularly develops a natural discipline within.
These benefits do not arise from any miracle but from regularity and restraint. This is why Ekadashi is regarded not merely as a religious date but as a powerful means of giving direction to life.
How many Ekadashi dates occur in a year?
A normal year has twenty four Ekadashi dates, while a year with Adhik Maas has twenty six.
Why are extra Ekadashi dates added during Adhik Maas?
Adhik Maas is added to balance the difference between the lunar and solar year, which also brings two extra Ekadashi dates.
How often does Adhik Maas occur?
Adhik Maas generally occurs once every three years.
What is the main purpose of the Ekadashi fast?
The main purpose of the Ekadashi fast is purification of the mind, restraint of the senses and devotion toward Lord Vishnu.
What is the difference between Shukla and Krishna Paksha Ekadashi?
During Shukla Paksha the moon waxes, bringing increased energy, while during Krishna Paksha the moon wanes, bringing a greater tendency toward introspection.
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