Scholars comparing regional calendar variations (e.g., Drik Siddhanta vs. Surya Siddhanta ) need consistent, reproducible calculations. A portable annual Tithi calculator can be version-controlled and stored alongside research data. Being portable, it can be run on air-gapped archival machines without administrative privileges.
Before diving into the calculator, let us understand the core concept. In the Vedic calendar, a is a lunar day—the time it takes for the longitudinal angle between the Sun and the Moon to increase by 12 degrees. Unlike solar days (sunrise to sunrise), tithis vary in length from 19 to 26 hours. annual tithi calculator portable
A is a lunar day in the Hindu calendar, defined by the moon's position relative to the sun. Unlike the fixed 24-hour days of the Gregorian calendar, a Tithi can last anywhere from 19 to 26 hours. This variation makes a specialized calculator necessary to determine exactly when a Tithi begins and ends. Why Use a Portable Annual Tithi Calculator? Scholars comparing regional calendar variations (e
Since the motion of the moon is variable, a Tithi does not align perfectly with the solar day (start to end at midnight). A Tithi can start at 11:00 AM and end at 9:00 AM the next day. This complexity necessitates a calculator rather than a simple calendar. Being portable, it can be run on air-gapped
Access your family's annual ritual dates on your phone, anywhere in the world.
An maps out the exact start and end times of each of these 30 tithis for every day of the Gregorian year.
In the tapestry of Hindu timekeeping, the Tithi holds a place of paramount importance. Unlike the Gregorian calendar, which is based on the solar cycle, the Hindu Panchang (almanac) is lunisolar. A Tithi is essentially a lunar day, representing the angular relationship between the Sun and the Moon. Because the duration of a Tithi can vary anywhere from 19 to 26 hours, calculating them requires complex astronomical algorithms.