Masik Shivratri or Masa Shivaratri is the most auspicious day dedicated to Lord Shiva and is popularly known as the night of Siva. It is celebrated today – January 1st 2022, Saturday as per panchangs in India.
The best time to perform puja is from 12:16 AM on January 1 to 01:08AM on January 2. Nishita Kala is chosen to perform pujas and rituals on Shivratri.
All Masik Shivratri dates in 2022 – you can find an article here – List of Masik (Masa) Shivratri vrat dates in 2022
Shivratri puja and fasting begins with the sunrise on the Chaturdashi day. It is a complete fast on the day and people keep vigil at night or spend time in Shiva Temples or at sacred spots associated with Lord Siva. At home, one should keep chanting the mantra ‘Om Namah Shivaya.’ If you have a Shivling you can offer water to it.
All the rituals on the night of Shivaratri are meant to cleanse the ignorance and realize that all animate and inanimate is nothing but the Supreme Truth Shiva. The fasting, rituals and chanting are meant to kill desire, greed, illusion, arrogance, jealousy, and anger.