It's the timestamp. It shows up on my screen as having been posted on 11/25. So "Tomorrow there's a reading" reads in my mind as 11/26.

It's just as well, because I'm exhausted from work and have about 3 separate mini-thanksgivings to go to with friends tomorrow, but it's a shame I didn't know about it earlier. :( Ah well, perhaps next time.

Or what about attending a poetry slam on Wednesday nights at the Cantab sometime?