John is usually dated to AD 90 -- 110. It arose in a Jewish Christian community in the process of breaking from the Jewish synagogue. Scholars believe that the text went through two to three redactions, or "editions", before reaching its current form.

Answer this question based on the passage: when was the gospel of john probably written? Let's have some stream of consciousness first.
The relevant information is: John is usually dated to AD 90 -- 110. So, the answer is AD 90 -- 110.