Easter Saturday, or Bright Saturday, is the Saturday following the Christian festival of Easter. In the liturgy of Western Christianity it is the last day of Easter Week, sometimes referred to as the Saturday of Easter Week or Saturday in Easter Week. In the liturgy of Eastern Christianity it is the last day of Bright Week. Easter Saturday is the day preceding the Octave Day of Easter (also known as St. Thomas Sunday or Divine Mercy Sunday).^[1]

Easter Saturday sometimes refers to Holy Saturday,^[2] the Holy Week observance that falls between Good Friday and Easter Sunday, but this usage is incorrect.^[3][4]

April 6 (Western)

Good Friday (from the senses pious, holy of the word "good"),^[1] is a religious holiday observed primarily by Christians commemorating the crucifixion of Jesus Christ and his death at Calvary. The holiday is observed during Holy Week as part of the Paschal Triduum on the Friday preceding Easter Sunday, and may coincide with the Jewish observance of Passover. It is also known as Holy Friday, Great Friday, Black Friday,^[2] or Easter Friday,^[3] though the latter properly refers to the Friday in Easter week.