If you’ve noticed the VedicDisha Panchang showing two different Hindu month names for the same date — an “Amavasyant Month” and a “Poornimant Month” — this isn’t a display error. Both are real, traditionally used systems for naming lunar months.
What is a Hindu Lunar Month?
A Hindu lunar month follows the Moon’s cycle through its 30 Tithis (see
Tithi & Paksha) — one Shukla Paksha plus one Krishna Paksha. The question that produces two different naming systems is simply: where does a month begin and end?
Why Two Month Names Can Appear for the Same Date
The two systems draw the month boundary at different points in the lunar cycle:
- Amavasyant (also called Amanta): the month ends at Amavasya (New Moon), and the next month begins the following day.
- Poornimant (also called Purnimanta): the month ends at Purnima (Full Moon), and the next month begins the following day.
Because these two boundaries fall roughly two weeks apart within the same lunar cycle, the two systems agree on the current month’s name for about half the month and disagree for the other half:
| Paksha |
Amavasyant Month Name |
Poornimant Month Name |
| Shukla Paksha (Amavasya → Purnima) |
Same month |
Same month |
| Krishna Paksha (Purnima → next Amavasya) |
Still the current/ending month |
Already the next month |
During Shukla Paksha, neither system has crossed its own boundary yet, so both agree. During Krishna Paksha, the Poornimant system has already crossed its Purnima boundary into the next month, while the Amavasyant system is still finishing out the current one — until the shared Amavasya arrives and both agree again.
What is the Amavasyant (Amanta) System?
In the Amanta system, each month runs from the day after one Amavasya to the following Amavasya — Shukla Paksha always opens a month, and Krishna Paksha always closes it.
What is the Poornimant (Purnimanta) System?
In the Purnimanta system, each month runs from the day after one Purnima to the following Purnima — Krishna Paksha always opens a month, and Shukla Paksha always closes it.
Regional Usage — A General Note
Different regions of India traditionally favor one system or the other in their local Panchangs and calendars — this is well-documented general calendar tradition. This page doesn’t state which region(s) VedicDisha itself considers its primary audience, and no such claim should be read into this content.
How Both Systems Appear in the VedicDisha Panchang
The date-detail popup shows both month names side by side — “Amavasyant Month” and “Poornimant Month” — for every date, with no Upto/Next transition data attached to either. Because both are always shown together, there’s no need to guess which system is “the” answer for a given calendar.
Practical Takeaway
Seeing two different month names for one date in the VedicDisha Panchang reflects two legitimate, traditionally-used ways of drawing a Hindu lunar month’s boundaries. Once you know which system a particular regional Panchang or calendar you’re comparing against uses, you can read off the matching name directly.
Related Panchang Concepts
- Tithi & Paksha — the underlying Amavasya/Purnima boundaries both month systems are built from (see Tithi & Paksha)
- View any date’s full detail on the Full Year Panchang
