Here's the fulfillment.
Jn. 20:19 Then the same day (Sunday) at evening, being the first [day] of the week, when the doors were shut where the disciples were assembled for fear of the Jews, came Jesus and stood in the midst, and saith unto them, Peace [be] unto you.
v24 But Thomas, one of the twelve, called Didymus, was not with them when Jesus came.
v25 The other disciples therefore said unto him, We have seen the Lord. But he said unto them, Except I shall see in his hands the print of the nails, and put my finger into the print of the nails, and thrust my hand into his side, I will not believe.
v26 And after eight days again his disciples were within, and Thomas with them: [then] came Jesus, the doors being shut, and stood in the midst, and said, Peace [be] unto you.
v27 Then saith he to Thomas, Reach hither thy finger, and behold my hands; and reach hither thy hand, and thrust [it] into my side: and be not faithless, but believing.
Sunday to Sunday counting inclusively is 8 days. Peace to you on the first and last day. Rom. 14:11 For it is written, [As] I live, saith the Lord, every knee shall bow to me, and every tongue shall confess to God.