Shivaratri falls during the Shravana month where the whole month is dedicated to Lord Shiva and puja is performed is known as Sawan Shivaratri.The most significant Shivaratri which is known as Maha Shivaratri falls during February or March which corresponds to Phalguna month according to North Indian calendar.
In a year there are usually twelve Shivaratri days. But this year Shravana Shivratri is being celebrated on July 21.
Sawan Shivaratri is more popular in North Indian states - Uttarakhand, Rajasthan, Uttar Pradesh, Madhya Pradesh, Punjab, Himachal Pradesh and Bihar where Purnimant Lunar Calendar is followed. In Andhra Pradesh, Goa, Maharashtra, Karnataka, Gujarat and Tamil Nadu where Amavasyant Lunar Calendar is followed Sawan Shivaratri corresponds to Ashadha Shivaratri.
Sawan Shivaratri Vrat Vidhi
-On Trayodashi, devotees should eat only one time.
-On Shivaratri day, after finishing morning rituals devotees should take Sankalp to observe full day fast on Shivaratri and to take food on next day.
-During Sankalp devotees pledge for self-determination and seek blessing of Lord Shiva.
Sawan Shivratri muhurat:
Ratri First Prahar Puja Time = 19:14 to 21:50
Ratri Second Prahar Puja Time = 21:50 to 24:27+
Ratri Third Prahar Puja Time = 24:27+ to 27:04+
Ratri Fourth Prahar Puja Time = 27:04+ to 29:41+
Chaturdashi Tithi Begins = 21:49 on 21/Jul/2017
Chaturdashi Tithi Ends = 18:27 on 22/Jul/2017