The Second Sunday of Easter is Divine Mercy Sunday. Jesus himself, in his messages to Saint Faustina Kowlaska, asked that this Sunday be designated as Divine Mercy Sunday. He said that in a very special way there would be an Ocean of Mercy poured out for repentant sinners. I encourage you to go online to learn more about Divine Mercy Sunday and about the message of Mercy that Jesus gave to Faustina.
There is a plenary indulgence attached to Divine Mercy Sunday. A plenary indulgence is a full remission of both temporal and eternal punishments due to sin. To receive the indulgence, one must be in a state of grace, free from attachment to any sin (not willfully holding on to any sin), including venial sin, and must go to Confession and receive Holy Communion as soon as possible. If you did this in the early part of Lent, before we had to shut down, that counts for the indulgence. If you have not, obviously, it is difficult to fulfill those conditions at this time. If you do so as soon as it is permitted, then you can receive the Indulgence. You can attain the Indulgence for yourself or for someone in Purgatory. We cannot attain it for someone else who is living, for they are capable of attaining it for themselves, if they want it.
Jesus specified 3 pm as the Hour of Mercy, as it is the hour when he died. I encourage everyone to pray the Chaplet of Mercy this Sunday at 3 pm. If that is not possible, any time during the day would be fine. Also, pray the Chaplet daily, especially in this time of pandemic. Jesus asked that it be prayed in the presence of the dying, but since we cannot be with them physically, we can be with them in mind and soul, as we pray for them in their last days and hours.