Moon phase vs tithi
Moon-phase labels describe a continuous astronomical cycle. A Panchang uses thirty tithis, each covering 12 degrees of Moon-Sun angular separation. Purnima and Amavasya are associated with full moon and new moon respectively. An astronomical boundary is an instant; the local display time and observance date depend on timezone, sunrise and tradition.
Why India users care
Moon phases matter for Purnima, Amavasya, Ekadashi, Karwa Chauth moonrise, Eid moon sighting, festival fasts, coastal tides and eclipse visibility. A generic global moon phase can be useful, but it should not replace local Panchang timing when a ritual or fast depends on a precise tithi window.
Eclipses and visibility
Solar and lunar eclipses occur when the Sun, Moon and lunar nodes align. Calendar pages may list eclipse dates globally, but visibility from India can differ by city and by event. For religious observance, many traditions also distinguish visible and non-visible eclipses.
Tides and coastal timing
Tides are local: coastal locations cannot share one tide table. IndiaTime does not currently publish operational tide predictions. Use an authoritative port or hydrographic service for navigation and coastal safety, not a moon-phase label.
Where this fits on IndiaTime
Use Indian Calendar for festival context, Hindu Calendar Explained for tithi and paksha concepts, and Today Muhurat for daily traditional timing notes.