Jack Osbourne is opening up about the heartbreaking moment he learned his father, Ozzy Osbourne, had passed away.

Osbourne died of a heart attack at his home in Buckinghamshire, England, on July 22. Now, weeks later, Jack is sharing the personal story of how he found out about his father’s death in a video posted to his YouTube channel on Wednesday.

“It’s been six weeks since my father passed,” Jack recalled, after addressing concerns from his followers, which he admits “has not been” his “priority.”

He went on to share that his father passed around “10 o’ clock in the morning, U.K. time.” At the time, Jack was in Los Angeles, where he had been staying for “about a week” following his dad’s final performance.

On July 5, Osbourne performed what would be his last show at Villa Park in Birmingham, England. Jack stayed behind with his family and children, calling it “an amazing week.”