どころか・どころではない: the difference
どころかN3
Meaning
Far from, Anything but
Past papers
Tested 2 times in past papers
Example
そのケーキは甘いどころか、酸っぱかった。
Far from being sweet, that cake was sour.
どころではないN2
Meaning
This is not the time for…, Far from, Out of the question
Past papers
Tested 2 times in past papers
Example
休みの日はたくさん寝たい。レジャーどころではない。
On my day off, I want to sleep a lot. Leisure activities are out of the question.
How to tell them apart
「～どころか」 usually sits mid-sentence: 'let alone A, not even B' or 'not A, but rather B': 「給料が上がるどころか、下がった」 (My pay didn't go up; it went down).
「～どころではない」 usually ends the sentence and says there is no room to do something in the present situation: 「忙しくてそれどころではない」 (I'm too busy for that).