Amavasi, also known as Amavasya or Amavas, is the no moon day in a month in a traditional Hindu lunar calendar. Amavasya March 2013 date is March 11. Amavasya time - begins at 2:03 AM on March 11, 2013 and ends at 1:08 AM on March 12, 2013. As per traditional North Indian calendar it is the Amavasya in Phalgun month. In other regions it is the Magh Amavasi.
Amavasi is the darkest day in a traditional Hindu month and is considered both auspicious and inauspicious by different Hindu communities.
There are many Hindus who undertake a fast on Amavasi. Some devotees only take a single meal on the day.
Magh month ends in traditional calendars followed in Maharashtra,
Gujarat, Andhra Pradesh and Karnataka on the day.