Poornima

Poornima on OccultGuide: what the glossary says, related topics, and the dates when it is observed.

23 Dec: The tithi began and ended without ever falling at sunrise (kshaya); the day it runs through is kept.

Computed for New Delhi. Sunrise decides which tithi a day belongs to, so these can differ elsewhere.

Tithi
Pūrṇimā

The full moon day, considered auspicious across traditions for worship and fasting.