Mark 13:4
"Tell us when this will be, and what will be the sign when all this is drawing to its close."
Acts 1:6-7
So, when the Apostles had met together, they asked Jesus this question--"Master, is this the time when you intend to re-establish the Kingdom for Israel?"
Matthew 24:3
So, while Jesus was sitting on the Mount of Olives, his disciples came up to him privately and said: "Tell us when this will be, and what will be the sign of your Coming, and of the close of the age."
Luke 21:7
So the disciples questioned Jesus: "But, Teacher, when will this be? and what sign will there be when this is near?"
John 21:21-22
Seeing him, Peter said to Jesus: "Master, what about this man?"