E. Dwadashi, following the Sunshine rises. It is actually of utmost significance that Ekadashi Parana is done over the Dwadashi tithi only, and particularly in the 1st quarter of the day, that's also known as as Hari vasar Today is devoted to worshipping Lord Vishnu. Prayers and mantras are chanted, https://directory-king.com/listings13303464/what-does-ekadashi-mean