Amavasya also referred as no moon day or new moon day in a Hindu lunar calendars is dedicated to performing Shradh and Tarpan rituals. Amavasya December 2012 date is December 13. It begins at 4:48 PM on December 12, 2012 and ends at 2:26 PM on December 13. This is the Kartik Amavasya in calendars followed in Andhra Pradesh, Karnataka, Gujarat and
Maharashtra. In North India,
it is the Margashirsh Amavasya.
Amavasya Vrat is on December 12. Shradh and Snan Dan is also on December 13.
In Tamil Calendar, it is the Amavasai in Kartika Masam. In Malayalam calendar followed in Kerala it is the Amavasi or Karuthavavu in Dhanu Masam.
it is the Amabashya in the Agrahan month.
This day is chosen for performing Shradh and Tarpan by many Hindu communities.
Some Hindu communities observe a partial fast on the day and only take single meal on the day.