At what time of day did Nicodemus first come to Jesus?

Answer: At night

Nicodemus, a Pharisee and leader of the Jews, came to Jesus at night and called him a teacher come from God.

“Now there was a man of the Pharisees named Nicodemus, a leader of the Jews. He came to Jesus at night and said, “Rabbi, we know that You are a teacher who has come from God. For no one could perform the signs You are doing if God were not with him.””— John 3:1-2 (BSB)