Divine Mercy Sunday
Conditions.
In order to gain the pardon/indulgence for the Feast of Divine Mercy, one does NOT have to make the novena. From the revelations of St. Faustina:
On one occasion, I heard these words: My daughter, tell the whole world about My Inconceivable mercy. I desire that the Feast of Mercy be a refuge and shelter for all souls, and especially for poor sinners. On that day the very depths of My tender mercy are open. I pour out a whole ocean of graces upon those souls who approach the fount of My mercy.
The soul that will go to Confession and receive Holy Communion shall obtain complete forgiveness of sins and punishment.
On that day all the divine floodgates through which grace flow are opened. Let no soul fear to draw near to Me, even though its sins be as scarlet. My mercy is so great that no mind, be it of man or of angel, will be able to fathom it throughout all eternity. Everything that exists has come forth from the very depths of My most tender mercy. Every soul in its relation to Me will I contemplate My love and mercy throughout eternity. The Feast of Mercy emerged from My very depths of tenderness. It is My desire that it be solemnly celebrated on the first Sunday after Easter. Mankind will not have peace until it turns to the Fount of My Mercy. (Diary 699) - Source
One may make their confession before the feast, on the feast, or within the eight days following the feast.
[Art: Thanks to Don Marco at Vultus Christi.]