"Jimmy" wrote in message
...
OK heres AN OPEN WINDOW.......

What if our measurements of time are compleatly wrong?

It doesn't really matter if they are 'wrong' (whatever that means) .. as
long as we measure them consistently. Reality is what we measure it to be.

We base it on
the calander and the sun and moon amonst other things,

No .. although our calendars are based on the movement of sun and earth
(which makes sense), we base our unts of time on the frequency of radiation
from a specific type of caesium atom under specified conditions.

which is good
for knowing when to go to work, but on a universal scale I would think
the rate of expansion is a more "sensable" method of determining time.

Not really .. too hard to measure.

I need one of those "good textbooks" so I can learn the math and rerun
the calculations. Any suggestions on where I can find the guidance to
get a good start?

For an informal starting point, try wikipedia .. read the articles and
follow the reference links. On the whole the wikipedia articles on physics
and math are quite reasonable (not perfect, of course). Or you could try
going to a library or book shop .. they have books there, you know.