Pi Day

I brought in cherry pie, and told people I'm serving it at 1:59 this afternoon. I've even told them what the occasion is. (Briefly. Just the name of the day, not the explanation of the day.)

No one has solved it yet. They all nod and smile, and figure that they'll eventually find out what I'm going on about, and if they don't, well, they'll at least get a slice of pie for their trouble. Which is probably a welcome change -- I'm often bizarre and inexplicable, but they don't usually get baked goods for putting up with me. ;-)

How long before they solve it, do you think?