Alma 63:1

And it came to pass in the commencement of the thirty and sixth year of the reign of the Judges over the people of Nephi, that Shiblon took possession of those sacred things which had been delivered unto Helaman by Alma;

At the start of the 36th year of the judges ruling over the Nephites, Shiblon took the sacred things that Helaman got from Alma.

At the start of the thirty-sixth year of the judges’ reign, Shiblon took charge of the sacred things that Alma had passed down to Helaman.