Outside of philosophical/ordered time, if time was to exist as a seperate enity or thing, it would have to been defined as time = Change 2, the 2 in change would denote; Change by motion (ch1) or change by fusion (ch2)
Ch1 relates to the expanding universe and the traveling of light.
An expanding universe was established by Hubble, basically it says that a Big Bang took place and as a result of that big bang the universe has been in motion ever since flowing from a point A to a point B, hence the Arrow of Time.
Ch1 also relates to the traveling of light as we know it, its speed is calcuable in distance thereby given it motiveness , from point A to point B.
Does me getting up and walking away from this computer validates time as a scientific item, or is it time in the philosophical?
Motion takes time but that time is applied by man, nothing in the process of motion dicates factual singular time in and of itself.
Ch2 relates to change by fusion, thats to say either through a natural process
( The Sun) or a man induced process. Atomic matter stays as is without change thereby being unaffected by time as we apply it to that
Chemical bonding or change is simular to fusion since it has not been noted that a single chemical element would change from one thing to another without a actor acting on it. Since change would not occur without influence time has no scientific basis in exsitence or actuality.
If Change 2 doesnt equal time as time can only equal change 2 then time cannot exist, process'es of H2o morphing to ice is not a change, Fire acting on a excellarant is not change, change can thus be only described as something turning completly from one thing into another seperate thing.
Only the above type of change can mark the passage of a factual time,