I don't know if there's a term for our awareness of the passing of a week. Kind of like a circadian rhythm, but times seven.
I woke up for no reason at around 3:00 this morning and it took well over an hour to fall back asleep. I think my week rhythm somehow got reset, because I kept getting more and more confused as I read my friends page. Each entry kept referring to the week dragging on and on, and I thought, "It's only lunchtime Monday in your time zone!" It took a while before I finally realized it's Thursday.
Possible job interview on Tuesday. Need to get my days straight by then.