22A October. Sounds like the plot for a weird metaphysical comedy film, where there's this day that most people just unknowingly sleep through, except for some reason the protagonist's kept up all night for some reason, and starts to see all of the strange and wonderful goings-on on 22A/10.

Or perhaps some sort of complicated daylight saving thing?

Another question arises: do most (well, half) pints of milk have this? Or is it rare? Who can remember?