Huh. I guess being from different points in time kind of throws things off.

[A pause, then...]

So, am I older or younger than you? By our calendar, I mean.

[It can't hurt, he figures, to steer the conversation a little away from the things that neither of them want to talk about. Better than letting it drift any closer to the other reasons he hates this day, or the reasons she might hate her own birthday, if they're like his. He's not trying to be depressed today, after all.]