What is Time?

Q: What is time?

A: Time is movement (distance), divided by intervals (units of measure).

Just a thought… Time is a human construct. Time is only the measurement of distance or expansion, as it pertains to the universe. Is time constant? Maybe, but if time also has to do with expansion, and the expansion of the universe is accelerating, then I would hazard to guess that time is not constant.. at least in that case.