Shani Jayanti or Sani Jayanthi is observed on Amavasya in Vaishakh month or Vaisakha masam. Shani Jayanti is considered as the Birthday or appearance day of Lord Shani, one of the navagrahas or nine celestial deities in Hinduism. In Hinduism, Sani is the deity of Shanivar. Shani bhagwan is also called as Shaneeswaran, Sani dev, Sanischara bhagwan or Chaya Putra. Shani Jayanthi is also observed as Shani Amavasya. Shani Jayanti has a great significance and spiritual importance as it falls on Saturday. As Shani Dosham (bad effects from Lord Shanis position in ones birth chart) is considered as an important feature in ones future aspects, Shani Puja is an auspicious ritual for Hindu astrology believers. Shani Thailabhishekam and Shani Shanti puja are the main rituals observed during Shani Jayanthi, Shani Amavasya, and Shani Trayodashi days. This puja important to solve Shani Dosh Nivaran, Shani Sadesati and Shani Panoti. In the Year 2014 Shani Jayanti is on 28 May 2014, Wednesday. In the Year 2015 Shani Jayanti is on 18 May 2015, monday. In the Year 2016 Shani Jayanti is on 05 june 2016, sunday. In the Year 2017 Shani Jayanti is on 25 May 2017, thursday. In the Year 2018 Shani Jayanti is on 15 May 2018, tuesday. In the Year 2019 Shani Jayanti is on 03 june 2019, sunday. In the Year 2020 Shani Jayanti is on 22 May 2020, friday.