It'd be about as useful as a speedometer in your kitchen. :)
If time doesn’t tick, nothing can begin, nothing can end
Nothing "new" anyway. That's another way of saying changeless.
There is no time to separate the two.
If nothing changes, what is the "two" you wish to separate?
The problem of conceptualizing time is similar to the problem of conceptualizing infinity (which you alluded to earlier.)
I think it varies with the individual: some cannot conceive of it at all, others can, in part; no one in total. Still we can describe both in part, perform logical and mathematical operations with them, etc.
To combine the conundrum, think of a pure theoretical mathematician working with both infinity and numbers that, in his view, are pure abstractions following their own laws independent of, regardless of, and outside of, time.
Here's an illustration:
http://www.youtube.com/watch?v=SfShu3ov9vM&feature=related
4:20 onwards, specifically.