About Dev Panchang
Mahakal Darshan
Dev Panchang publishes a daily Hindu almanac computed for your city rather than reproduced from a printed panchang. It is made by Mahakal Darshan and is available both here and as a free Android app.
Calculation method
We follow Drik Ganita — the observation-based system — rather than the older Surya Siddhanta approximations, because the two can differ by enough to move a tithi boundary across sunrise and therefore move a festival by a day. Solar and lunar longitudes come from modern ephemeris data. Sunrise and sunset use the standard convention of the disc centre with atmospheric refraction. Tithi, nakshatra, yoga and karana boundaries are found by solving for the exact instant the defining angular condition is met, not by interpolating a table.
Both month reckonings
Every day page shows both the Amanta month (ending at Amavasya, followed in western and southern India) and the Purnimanta month (ending at Purnima, followed across most of the north), along with Adhika Maas when it occurs. The tithi is the same in both; only the month name differs, and showing one without the other is a common source of confusion.
Limits
This is a computed almanac, not an astrologer. Personal muhurats — marriage, naming, housewarming — depend on the birth charts of the people involved and cannot be settled from a day page alone. Regional traditions also differ genuinely on some festival dates; where a difference exists, follow your family or local temple tradition.
Contact
Found a discrepancy? Write to mahakaldarshanofficial@gmail.com. Corrections are welcome and are checked against the reference panchang.