“Now the next day, that followed the day of the preparation, the chief priests and Pharisees came together unto Pilate,”
King James Version (KJV)
27:62 On the morrow, the day that followed the day of the preparation - The day of preparation was the day before the Sabbath, whereon they were to prepare for the celebration of it. The next day then was the Sabbath according to the Jews. But the evangelist seems to express it by this circumlocution, to show the Jewish Sabbath was then abolished.
Mt 27:62 The next day. The Sabbath. That followed the day of preparation. "That is, the day before the sabbath" (Mr 15:42).