Today, 18 April 2012 is Pradosha Vrata. This Pradosh Vrat falls in Krishna Paksha of Vaishakh Month in North Indian Hindi calendars and in Chaitra Month as per Marathi, Gujarati, Telugu & Kannada calendars. As it falls on Wednesday (Budhwar), Budha Graha Shanti Puja is also observed by some devotees.
Pradosh of 18 April 2012 falls in Chithirai Masam in Tamil calendar and in Meda Masam in Malayalam calendar.
Pradosh Shiva Puja time is 4.30 to 6’0 clock in the evening. Pradosha Ashtakam is the important prayer chanted during Pradosh Shiv Pujan.