Pradosh Vrat is dedicated to Shiva and Parvati and is observed on the 13th day of each lunar fortnight in a Hindu calendar. Pradosh Vrat dates in December 2017 are December 1, 2017 (Friday), December 15, 2017 (Friday) and December 30, 2017 (Saturday).
December 30, 2017 Pradosh falls on a Saturday, therefore it is known as Shani Pradosh.
The fasting on Pradosh begins at sunrise and ends during the twilight period. The fasting is very popular with Shiva devotees in