when it is one day (say, Thursday), and it feels like another (say, Friday)? I feel like there must be a term for this feeling.
Thanks, Dopers.
WAG? I’d just call it “life”. Seems to happen all the time. In fact, moments after I saw your post, Mrs. Gap inquired as to whether it was Thursday or Friday.
Seriously though, good thought, and I’d also like to know if there’s a actual term for this.
That is a great question to which I don’t have an answer. But to me every day of the week “feels” different, almost as if it were a color. I get all screwed up when there is a holiday on a Monday and then Tuesday “feels” like Monday. When I’m on a long vacation I don’t know what day it, not because a day “feels” like the wrong day but because the feelings just go away.
I’m always busy on Mondays, I’ll have to get back to you later.
Not quite the same, but the term jamais vu, something like the opposite of deja vu, means that a familiar situation seems unfamiliar in some way. In this case, you feel a familiar situation is occurring on the wrong day.
I’m going with chronodysphoria. If it wasn’t a word before, I just worded it.
Yes!! I associate the days of the week with colors too. Tuesday is always yellow. That one stands out the most for me.
Yes, the time feels right to coin this word.
Synesthesia seems to have endless variety. Does it feel like the word is associated with the color, or the experience of the day itself? Or perhaps it’s now possible to untangle the two.
I’m going to jump on the chronodysphoria bandwagon. Looks like three of us willing to throw it out to the universe. If we can get several thousand other people on board, I think we’ve got a winner.
And can you, can you imagine fifty people a day, I said
Fifty people a day walking in, saying “I feel chronodysphoric today” and
Walking out. And friends they may thinks it’s a movement.
The Germans should have a word for this (from the folks who brought you ‘schadenfreude’ and ‘zugswang’!)
Unheutzutäglichkeit. 
(Would mean something like “These days, there’s no these-days-ness.”)
Not a perfect match, but I had fun making a word.
Or “Ohnetag”, a little pun about noon.
(Noon is “Mittag” meaning mid-day, but mit also means with, and ohne means without.)
And that’s what it is, the Chronodysphoric Movement, and all you got to do to join is sing it the next time it comes around on the guitar!