You seem to be working with an incorrect understanding of ad hominem. Lets clearly define the term:
Ad hominem (Latin for "to the man" or "to the person"), short for argumentum ad hominem, is an argumentative strategy whereby an argument is rebutted by attacking the character, motive, or other attribute of the person making the argument, or persons associated with the argument, rather than attacking the substance of the argument itself.
In short, GC has asked you twice for your definition of time. Both times, instead of saying, "I define time as...' you have opted to call GC a liar, twisted, deluded among others. That is the very definition of ad hominem.
Again, I expect better from one who claims CHrist as their Lord. I do not expect for you to agree, but I expect you to treat those you disagree with with respect.
So you refute your idiotic position by quoting a definition that is completely in keeping with what I've said and continue to disagree.