Regulus frowned at the sight in front of him. He recognised Lupin from school, but he didn't think that the man had changed this much in just a year. "That's not what I meant. What is the date for you?" he asked. "You look... older and apparently I'm dead, and while it does seem strange, if Kreacher is right, and I have no reason to doubt him, then we can't be sure of time anymore. Time magic was always frowned upon."
He looked at Sirius for a moment before returning his attention toward Lupin. "It's the 14 of December, 1979 for me. What's the last date you remember?"