Calculation Inputs
HinduCalendar.org uses astronomical panchang calculations based on date, latitude, longitude, timezone, and local sunrise/sunset. The server-rendered SEO pages use a deterministic default city when a location is not supplied.
Default Location
Standalone pages such as tithi today and rahu kaal today use Mumbai, India as the default calculation location. City pages use the listed city coordinates.
Why Dates Can Differ
Panchang dates may differ across locations because tithi and observance windows can cross sunrise, sunset, midday, or midnight differently in different timezones.
Best Use
Use HinduCalendar.org as a practical panchang reference. For highly specific rituals or community traditions, confirm with the local temple, family tradition, or priest.