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Originally Posted by xersan
Tıme is a dimension like other length dimensions. Because it is measurable and dimension of time defines one of coordinates. Besides ıt determınes the period of event or the moment of event.
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... with (at least) one critical distinction: with a modest amount of work, I can rotate a physical object (such as the stylus I'm writing this with) so that its "length" is now its "width" or "height" - that is, apply rotational coordinate transform to all of its points.
I can't rotate it in a way that effects its time coordinates. For example, I can’t manipulate it in a way that swapps its time coordinate for its north-south coordinates, so that my old stylus becomes longer, or newer. *
Treating time as a dimension is very useful, but the time dimension is not like a spatial dimension in the way a one spatial dimension is like another.
* A stickler for details might point out that I actual can do something like that by giving it a velocity – according to Relativity, Fitzgerald length contraction can be described as a rotation in the 4 dimension of Minkowski space - but this isn't at all like rotating it about its 3 spatial dimensions. A "90 degree" rotation, which requires a tiny amount of energy about the 3 spatial dimensions (and doesn't involve my stylus flying off into the great beyond!) would require an infinite amount of energy when done about the time dimension.
