Annapurna Jayanti, Mata Annapurneshwari Jayanti, is the first appearance day of Goddess Annapurna, a manifestation of Goddess Shakti. In 2019, Annapurna Jayanti date is December 12.
Annapurna Jayanti is observed on Margashirsha Purnima, the Full Moon day in Margashirsha Month as per Hindu calendar. Generally, it falls in December according to Gregorian calendar.
Mata Annapurna is the Goddess of food and nutrition as per the Hindu scriptures. She is worshipped with Shodashopachara puja on this day. In some areas, devotees observe fasting throughout the day and break their fast in the night after the puja.
Annapurna Puja is also observed during Vasant Navratri (Chaitra Navratri) and Durga Sharan Navratri days.