Aliturgical Days are days in the

liturgical year The liturgical year, also called the church year, Christian year or kalendar, consists of the cycle of liturgical seasons in Christian churches that determines when feast days, including celebrations of saints, are to be observed, and wh ...

when

mass Mass is an intrinsic property of a body. It was traditionally believed to be related to the quantity of matter in a physical body, until the discovery of the atom and particle physics. It was found that different atoms and different ele ...

is not celebrated. In the

Latin liturgical rites Latin liturgical rites, or Western liturgical rites, are Catholic rites of public worship employed by the Latin Church, the largest particular church '' sui iuris'' of the Catholic Church, that originated in Europe where the Latin language onc ...

the only fully aliturgical day is

Good Friday Good Friday is a Christian holiday commemorating the crucifixion of Jesus and his death at Calvary. It is observed during Holy Week as part of the Paschal Triduum. It is also known as Holy Friday, Great Friday, Great and Holy Friday (also Holy ...

. In the

Eastern Orthodox Church The Eastern Orthodox Church, also called the Orthodox Church, is the second-largest Christian church, with approximately 220 million baptized members. It operates as a communion of autocephalous churches, each governed by its bishops via ...

there are more aliturgical days.

References

Eastern Orthodox liturgy Catholic liturgy {{RC-stub