III. When is the Liturgy Celebrated?

From The Catechism of the Catholic Church

1168
Beginning with the Easter Triduum as its source of light, the new age of the
Resurrection fills the whole liturgical year with its brilliance. Gradually, on
either side of this source, the year is transfigured by the liturgy. It really
is a “year of the Lord’s favor.”⁴² The economy of salvation
is at work within the framework of time, but since its fulfillment in the
Passover of Jesus and the outpouring of the Holy Spirit, the culmination of
history is anticipated “as a foretaste,” and the kingdom of God
enters into our time.

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