Here we see a simple mistake that most Catholic Sabbath Keepers make....that is believing that the day of resurrection and the Lord's Sabbath are different days. Scripture is very plain here. Our Saviour came out of that tomb late on the Sabbath.
"St. Luke seems to have made most full inquiry as to all the facts of the Resurrection, and his narrative might almost be inscribed: ‘Easter Day in Jerusalem.’[1] ... It was the first day of the week - according to Jewish reckoning the third day from His Death. (Friday, Saturday, Sunday.) The narrative leaves the impression that the Sabbath’s rest had delayed their visit to the Tomb; but it is at least a curious coincidence that the relatives and friends of the deceased were in the habit of going to the grave up to the third day (when presumably corruption was supposed to begin), so as to make sure that those laid there were really dead. ... the Rabbis insist on the importance of ‘the third day’ in various events connected with Israel, and specially speak of it in connection with the resurrection of the dead, referring in proof to Hos. vi. 2." (Alfred Edersheim)
The "first day of the week" was "the third day" since the crucifixion according to Luke account. There is not disputing that fact.
Note [1], Edersheim is not here referring to the annual festival of "Easter" as practiced by some Christians, but rather he uses the word merely to denote that original resurrection Sunday.