This year, Chaturdashi Tithi of Krishna Paksha of Phalgun month will start from 08:02 pm on February 18 and it will be valid till 04:18 pm on February 19. Night worship is important in Mahashivaratri, so it is best to celebrate Mahashivaratri on the 18th night.
Masik Shivratri starts on September 24, 2022 at 02:30 am and ends on September 25, 2022 at 03:12 am. The tithi is Ashwina, Krishna Chaturdashi.
Shivaratri is the great festival of the convergence of Shiva and Shakti.