He tilted his head, at this new Jack, wondering where and when he popped in from. This was not his Jack, obviously - he was running on Time Vortex. But Jack seemed not particularly surprised or perturbed to see him. Interesting.
"Thanks, Jack. It is Jack, isn't it?" the Master asked. "No game. Well, not one involving you. I didn't bring you here," he said gesturing around. "Tell me, what's the date?"