In October 2018, President Nelson announced a change to the 3 hour block for Church. For decades and decades since 1980, members would attend Sacrament meeting, Sunday School, then Priesthood and Relief Society. Every meeting began and ended with prayer.
The Church of Jesus Christ of Latter-day Saints is reinstating the practice of opening the second hour of Sunday meetings with a prayer, effective immediately.
It reverses a change announced in 2018, when the Church implemented a new and simplified Sunday meeting schedule. At the time, direction was given that Sunday School, elders quorum, Relief Society, Aaronic Priesthood quorum and Young Women classes would no longer open with a hymn and prayer but would continue to conclude with a closing prayer (see enclosure to the First Presidency letter dated October 6, 2018).