Vishnupati punya kaalam is an auspicious time for Vishnu Bhakti or the pure devotion for Lord Sri Maha Vishnu. Vishnupathi is a great time to spend in Lord Vishnu chantings, stories and pujas Vishnupati punya kaal comes once in every three months.
On the day of Vishnupati, nine hour period from 1.30 in the late night to 10.30 in the morning is referred as Vishnupathi Punya kaalam . The nine hour period is the most auspicious in terms of pujas and other sadhanas to please Lord Vishnu and to get blessings of Vishnu.
In each year, four Vishnupathi Punya Kaalams are celebrated. But the time period of theVishnupati is different from others in every year. Totally we have 60 years, once you miss to celebrate the Vishnupati then you have to wait for coming 60 years to celebrate Vishnupathi on the particular day.