Shivaratri is great festival of convergence of Shiva and Shakti. Each month, Chaturdashi Tithi during Krishna Paksha is known as Masik Shivaratri.
Masik Shivaratri in month of Magha is known as Maha Shivaratri according to Amavasyant School. However according to Purnimant School Masik Shivaratri in month of Phalguna is known as Maha Shivaratri. In both schools it is naming convention of lunar month which differs. However both, Purnimant and Amavasyant Schools, celebrate all Shivaratris including Maha Shivaratri on same day.
According to Indian Mythology, in the midnight of Maha Shivaratri, Lord Shiva was appeared in form of Linga. Shiva Linga was first worshipped by Lord Vishnu and Lord Brahma. Hence Maha Shivaratri is known as birthday of Lord Shiva and devotees worship Shiva Linga during Shivaratri. Shivaratri Vrat is popular since ancient time. In Hindu Puranas we get references of Shivaratri Vrat. According to scriptures even Goddess Lakshmi, Indrani, Saraswati, Gayatri, Savitri, Sita, Parvati, Rati observed Shivaratri fast.
The Shivaratri vrata is a very powerful and auspicious vratham that is dedicated to the Supreme Lord Shiva. The greatness of this vrata is mentioned in the all the major Hindu puranas. The Skandha Purana especially provides all the details and other information for observing the Shivaratri vrata. There are four main Shivaratris mentioned in the Skandha Purana. The Nitya Shivaratri is the first one which is observed daily, that is, every night. The next one is called as Masa Shivaratri and is observed every month on the Chaturdasi (14th day) of the Krishna Paksha (the waning or diminishing phase of moon). The Maga Shivaratri is then the third one and is observed for a period of thirteen days in the Hindu month of Maga. It starts from the prathama (first) titi and ends on the Chaturdasi (fourteenth) night when Lord Shiva is worshipped for the whole night. The Maha Shivaratri, is the main and is called as Maha Shivaratri. It is observed on the Chaturdasi (14th day) of the Krishna Paksha (the waning phase of moon) in the month of Maga. The Maha Shivaratri is observed in major parts of the country and is celebrated in a grandeur manner.
All Masik Shivaratri dates in 2018 and Shivaratri Puja Time
15 January (Monday) Masik Shivaratri 16 00:09 AM - 16 01:02 AM
13 February (Tuesday) Masik Shivaratri 14 00:15 AM - 14 01:06 AM
15 March (Thursday) Masik Shivaratri 16 00:11 AM - 16 00:59 AM
14 April (Saturday) Masik Shivaratri 15 00:03 AM - 15 00:49 AM
13 May (Sunday) Masik Shivaratri 14 00:01 AM - 14 00:44 AM
12 June (Tuesday) Masik Shivaratri 13 00:05 AM - 13 00:47 AM
11 July (Wednesday) Masik Shivaratri 12 00:11 AM - 12 00:53 AM
09 August (Thursday) Masik Shivaratri 10 00:10 AM - 10 00:54 AM
08 September (Saturday) Masik Shivaratri 09 00:01 AM - 09 00:47 AM
07 October (Sunday) Masik Shivaratri 07 23:50 PM - 08 00:39 AM
05 November (Monday) Masik Shivaratri 05 23:44 PM - 06 00:36 AM
05 December (Wednesday) Masik Shivaratri 05 23:50 PM - 06 00:44 AM