Mark 13:4
"When will all this take place? Tell us. And what will be the sign that it is about to be put into effect?"
Acts 1:6-7
So those who were present began to ask Him, "Lord, is this the time when you are going to set up the kingdom again for Israel?"
Matthew 24:3
While He was sitting on the Mount of Olives, the disciples came up to Him by themselves, and said, "Tell us when this is to take place, and what will be the sign of your coming and of the end of the age."
Luke 21:7
Then they asked Him, "Teacher, when will this be? And what is the sign that it is about to take place?"
John 21:21-22
So when Peter saw him, he said to Jesus, "But, Lord, what about him?"