III. When is the Liturgy Celebrated?

From The Catechism of the Catholic Church

1176
The celebration of the Liturgy of the Hours demands not only harmonizing the
voice with the praying heart, but also a deeper “understanding of the
liturgy and of the Bible, especially of the Psalms.”⁵²

PART TWO: THE CELEBRATION OF THE CHRISTIAN MYSTERY

SECTION ONE THE SACRAMENTAL ECONOMY
- CHAPTER TWO THE SACRAMENTAL CELEBRATION OF THE PASCHAL MYSTERY
  - Article 1 CELEBRATING THE CHURCH’S LITURGY
    - III. When is the Liturgy Celebrated?

From The Catechism of the Catholic Church – rosary.team