When is the "last day" that is referred to in the book of John?

When is the “last day” that is referred to in the book of John?
The Rapture? The Second Coming? A series of “last days’?

John 6:39
And this is the will of him who sent me, that I shall lose none of all those he has given me, but raise them up at the last day

John 6:40
For my Father’s will is that everyone who looks to the Son and believes in him shall have eternal life, and I will raise them up at the last day.

John 6:44
“No one can come to me unless the Father who sent me draws them, and I will raise them up at the last day

John 6:54
Whoever eats my flesh and drinks my blood has eternal life, and I will raise them up at the last day.

AJ Tomlinson on #ONENESS

  http://pentecostalarchives.org/digitalPublications/USA/Church%20of%20God%20(Cleveland%20TN)/Samson’s%20Foxes/Unregistered/1902/Dixon/1902_01.pdf#search=”samson