In Prelude by Katherine Mansfield, a character says:
The worst is over already. The servant girl and I have simply slaved all day, and ever since mother came she has worked like a horse, too. We have never sat down for a moment. We have had a day.
My question concerns the use of 'a day' in the last sentence, where it seemingly refers to a 'full, busy, tiring day'.
I saw related topics here:
but in those cases, 'a day' is meaningful even if it's used neutrally and doesn't refer to a full and busy day.
In the above example, however, a neutral interpretation makes the sentence inconsequential, so it seems explicitly to refer to a long and tiring day.
Is 'a day' as used by this author to apparently mean 'a full, busy, tiring day' a typical English expression or an example of archaic / regional usage?