The place of worship is open throughout the day and devotees can worship as per their convenience
Lord Shiva spent a considerable amount of time in Mandarachal before returning to Kashi. During this time, a knowledgeable Sage named Jayageesh underwent rigorous penance in a cave, hoping for Lord Shiva's return to Kashi. Eventually, Lord Shiva arrived in Kashi after King Divodas left the area. However, the Sage had become weak and thin due to his intense Tapas and fasting.
Upon arriving in Kashi, Lord Shiva sent Nandi with a divine Lotus to revive the Sage. Nandi touched the Sage with the Lotus, and he immediately became active again. He then accompanied Nandi to Lord Shiva and Goddess Parvati and praised Lord Shiva with various Mantras and slokas. Lord Shiva was pleased and granted the Sage a divine boon. The Sage asked that the Lord always be present in a Ling that he would install.
Lord Shiva agreed to the request and stated that those who worship the cave where the Sage practiced Yoga and worshipped the Lord would attain Siddhi. It was advised that devotees regularly worship the Cave for all sorts of accomplishments in life. Additionally, Lord Shiva said that those who worship the Shiv Ling installed by the Sage, known as Jayageesheshwar, in the Jyeshteshwar Kshetra would be absolved of all their sins. Feeding a Shiv Bhakt in the Jyeshteshwar Kshetra would provide the benefits of feeding one crore hungry people.